Please Note: Prices subject to change without notice

Price: $2440 + Freight & handling + GST each

Eddy Current Dynamometer/Load/Brake

SUMMARY:
This unit can be coupled on the Machine Bed Plate(091002-A) using a Rubber Coupling (090128-3) to all motors in the range to measure their Locked-Rotor &/or output torque or used as a variable controlled load

Field excitation requires a 0>24 Vdc supply

Price: $350 + GST + freight & handling

The water pump module has been developed for use as a hydraulic ‘motor-load’

Any of the ac or dc motors may be used as the prime mover

The Module enables Output-Power calculations using hydraulic pressure head measurement and flow rates

The Pumps Inlet & Outlet are standard 3/4″-14 BSP (i.e standard garden Tap thread) This allows ‘any-brand’ of standard garden hose accessories to be fitted to the pump

A separate stand-alone Hose-Kit is also available (Product PHK-001:  30m x 12mm clear Plastic Vinyl tubing & click-on hose fittings)

Click on to down load instructions >  200704 Pump instructions

HOW TO USE THIS PUMP

MOST IMPORTANT:

ONLY OPERATE IN A CLOCKWISE DIRECTION (Viewed on coupling)

ALWAYS DOUBLE CHECK THE CORRECT DIRECTION OF MOTOR ROTATION “PRIOR TO COUPLING THE MOTOR TO THE PUMP”

 ENSURE SUCTION HOSE IS ALWAYS IMMERSED.  BOTH BEFORE STARTING THE PUMP AND WHILE IN USE

WARNING

DO NOT LET THE PUMP RUN DRY

Turn off immediately when container is drained (pump becomes inoperable if run dry, and doing so voids warranty)

Not suitable for drinking water

Do not use with flammable or corrosive materials

MAX. PUMP RATINGS (Water (H₂0))

RPM                      : 3000

Output                  : 20 lt/min (0.33 lt.s^-1)(0.33 kg.s^-1)

Pump height        : 13.7 m

Self Priming        : 2.75 m max.

Price: $1180 + freight & handling + GST

Note: for optimum performance at least one(1) Field Rheostat (1550-0-100R) should be purchased with this machine. 

24.0Vdc, 60W Motor or Generator – may be connected for shunt, Series or Compound operation, and Ward-Leonard speed control
dc Machine efficiency

This dc machine has eleven(11) leads terminated at the terminal box with 4mm diameter sockets enabling the machine to be externally connected as:

1. Series Motor: 210204 W dc machine CCT Diag
   .
   
2. Shunt Motor:
   a. Self Excited; 210204 V dc machine CCT Diag
   b. Separately Excited: 210204 U dc machine CCT Diag
   .
3. Compound Motor:
   a. Cumulative Compound : (Long Shunt :210204 X dc machine CCT Diag )(Short Shunt :210204 Y dc machine CCT Diag)( Separately Excited :210204 Z dc machine CCT Diag)
   b. Differential Compound 130521-2-dc-machine-connections
   .
4. Series Generator:171111-B CCT Diag
   .
   
5. Shunt Generator:
   a. Self Excited :171111-A CCT Diag
   b. Separately Excited : 171111-D CCT Diag
   .
6. Compound Generator:
   a. Cumulative Compound : (Short Shunt : 171111-C CCT Diag)(Separately Excited : 171111-E CCT Diag)
   b. differential Compound
   .
7. “Ward-Leonard” Speed Control 120829 Circiut Diagram – Ward-Leonard
   Combining two dc machines, a prime mover motor (63-1-L8240-A) and the special field rheostat (2G25-0-300R) the Ward-Leonard method of speed control can be demonstrated.(refer above link)
   .
8. ac Universal/Series Motor: Universal ac Series Motor
   As the field iron circuit is fully laminated the machine can be connected, using 25% of the Series Field winding to demonstrate a single phase ac Series/Universal motor.
   i.e. the motor has the inherent ability to operate on either an ac or dc supply.
   .
9. HANDS-ON – Torque – Physical evaluation:
   With care, the relatively large outside diameter metal coupling (090202-14), attached to the motor’s output shaft, may be gripped by hand by the student in the stalled (locked-armature) position so that the student can physically feel the ‘very-high’ starting torque developed by dc motors, as predicted in the theory.
   .
10. Auxiliary Starting/Control Gear:
    .
    2415-0-T001: 0>24V, 15A, dc Regulated Power Supply
    This is recommended minimum power supply for optimum performance in the dc motor mode.
    or an equivalent power supply of equal or greater output
    .
    1550-0-100R: Shunt Field Rheostat
    Required to demonstrate the effect on the armature RPM by varying the shunt field current/flux in the motor  mode.

The motor is mounted on a specially designed Base Plate (090131-A) enabling it to be quickly clipped onto a specially designed Machine Bed Plate (091002-A) to drive, or be driven via a flexible Rubber Coupling (090128-3) another machine or load

The machine is fully compatible withe the former (3rd generation) Betts equipment

The performance of this machine is far superior and more versatile than its Betts predecessor.

Price: $600 + Freight & Handling + GST

This is a 240-Vac, 50Hz, single phase, 2 pole, dual Capacitor motor.

Its primary purpose is as a high speed prime mover to drive the dc Machine (71-0-B002-A) or Synchronous Machine (71-3-L300-A) in generator mode. The motor is mounted on a specially designed Base Plate(090131-A) enabling it to be quickly clipped onto the specially designed Machine bed Plate (090131-A)

Price: $650 + Freight & handling + GST

This is a 240 Vac, 50Hz, Single phase, 4 pole, dual capacitor motor

Its primary purpose is as a Low Speed prime mover for driving loads clipped to the Machine Bed Plate (091002-A)

Also, as the motor has ALL leads from, both the Main & Auxiliary winding, both the Run & Start capacitors, the Auxiliary winding Cut-Out switch, thermal overload protector, and its 3 core supply flex brought out and terminated within its terminal box, it is an ideal motor for students to practice hands-on disconnect/reconnect exercises in the practical session of “Restricted Licence” courses,

Price: $610 + Freight & handling + GST

This is a 41.5 Vac 50Hz, single phase, 4 pole, dual capacitor motor(split-phase-shaded-pole-motor)

This motor has ALL ten(10) of its internal component leads terminated at its terminal box with 4mm sockets (i.e. main & auxiliary winding, cut-out switch and both capacitors) thus enabling the student to connect and test the motor in any of the following modes;

1. Capacitor “START” motor, Capacitor “RUN” (2 or Dual Capacitor motor) 180420-1Cap S&R CCT Diag.Issue Apdf
2. Capacitor “Start” Motor 180420-2 Cap S CCT Diag.Issue Apdf
3. Capacitor ”Start” – Adjustment of Starting Torque using Capacitor External Bank 71-1-CT001 71-1-CT001 CapStart Torque Diag
4. 140306 circle diagram issue A
5. Capacitor “RUN” motor or Permanent-Split-Capacitor(PSC);180420-3 Cap R CCT Diag
6. Also, as both the Main(or Run) and Auxiliary(or Start) winding are wound with very similar numbers of turns & wire gauge, the motor may be connected to operate as a “REVERSING” PSC motor.180420-4 Cap R Reverse CCT Diag
7. Power factor (pf) correction in-conjunction with Capacitor External Bank 71-1-Cpf001 71-1-Cpf001 CapStart pf correction Diag
8. pf correction table

HANDS-ON : The motors designed low shaft output of 44W enables the student the grip the metal shaft mounted coupling with their hand and stall (Locked-Rotor) the shaft. Thus, the student is is able to physically feel the different starting torques predicted by their theory, i.e.:

1. “Very-High” starting torque of the capacitor “START” motor; and
2. “Low” starting torque of the capacitor “RUN” motor.

Logic behind the choice of 41.5 Vac for the single phase motor

Ideally, to conform with the 3ph, 41.5/24.0 Vac, 4 wire(3ph+E) Concept, it would have been preferable to have had the single phase motor operating on 24 Vac (i.e. phase to neutral).

Unfortunately, in practice, this proved nonviable on both economic and practical grounds. Mainly due to the size and cost of the capacitors but also due to the higher currents required.

However, in hindsight, this has proved to be a teaching advantage. As it highlights the (not very well understood) fact that a single phase supply is obtained from between two(2) points of potential difference i.e. not exclusively between phase & neutral but also between any two(2) phases!

For example:

1. In a “Separated-Extra-Low-Voltage”(SELV) supply. i.e. between to actives;
2. The use of a 415 Vac ‘single’ phase condenser fan motor in a 3ph, domestic air conditioners (phase to phase) to eliminate the need for a neutral conductor; or
3. The use of a 415 Vac ‘single’ phase cooling fan motor in industrial welders. This enables the welder to be plugged into any Common/Normal standard ‘4 pin’(3ph+E) 3 phase outlet without concern of different phase sequences which would cause a 3ph motor to rotate in the wrong direction.  As well as again, eliminating the need for a neutral conductor which would require the use of a “NOT-Common” 5 pin(3ph+N+E) 3ph plug & socket outlet

Note, the direction of single phase motors is ‘factory preset’ and independent of phase sequence. Hence, this is the MAIN reason why ALL domestic appliance motors are single phase.

The latter two examples are commonly met in industry. AND, all to frequently, due to lack of knowledge and understanding a failed 415V single phase motor is replaced with a 240V single phase motor. Which to the annoyance of the customer, in turn, fails after a short period of operation!

Price $605 + Freight & handling + GST

This is a 3ph, 44W, 4 pole, 41.5 Vac, Delta connected(Δ), 50Hz, Squirrel Cage Induction Motor (SCIM)

The motor has six(6) leads terminated at the terminal box with 4mm diam. sockets enabling the motor to be externally connected for Star/Delta (Y/Δ) starting.

HANDS-ON
Concept
The motors designed low output of 44W enables the student to grip the shaft mounted metal coupling in their hand to stall (Locked-Rotor) the motor. This enables the student to physically feel the difference in torque between the Star(Y) and the delta(Δ) connection as predicted in the theory. i.e. T(star)= 1/3 T(d.o.l.(Δ))

In combination with the following auxiliary equipment all the various 3ph SCIM reduced voltage starting methods can be demonstrated

Voltage         Starter                Auxiliary        Transition
reduction                                  device
0%  (Full Voltage)  Direct-on-Line(DOL) 71-3-SD001 &/or 71-20-FRP001
50%      Auto Tx                     3P-3-100L      Open   CTT Transition Tx
50%      Korndorfer(Tx)         3P-3-100L      Closed CTT Transition Tx
58%      Star/Delta(Y/Δ)         71-3-SD001   Open   CCT Transition
58%      Wauchope(Y/Δ)        71-3-SD001   Closed CCT Transition
65%      Auto Tx                      3P-3-100L     Open   CCT Transition Tx
65%      Korndorfer(Tx)          3P-3-100L     Closed CCT Transition(Tx)
85%      Auto Tx                      3P-3-100L     Open CCT Transition(Tx)
85%      Korndorfer(Tx)          3P-3-100L     Closed CCT Transition(Tx)
85%      Primary Resistance  3R9-3-100R    Closed CCT Transition

Soft-Starter Product Code 6E003B2 (i.e. variable voltage control)
Variable Frequency Drive (VFD) Speed control Product Code 55-3-Z005  Sub & Super-Synchronous speed (i.e. variable frequency control)

DOL &/or Star Delta(open or closed transition) (Manual)  Product 71-3-SD001

DOL Reversing Starter(Manual):              Product 71-20-FRP001

Plug Braking Module(Manual):                Product 71-20-FRP001

Dynamic Braking Module (Automated):  Product 71-10-BD002

Dynamic Braking Module (Manual):      Product 71-20-BD100

Price on application

This is the standard 3ph, 4 pole SCIM (71-3-L004) fitted with a “Rotary Encoder”

Final price dependent on the make and model of rotary encoder specified by the customer, whether the rotary encoder is supplied by eme or the customer

Rotary encoder pictured on this motor is a:

Omron
type: E6B2-CWZ6C
Resolution: 600P/R – 5 to 24 Vdc

Please note: Rotary encoder can be fitted to other machines in the range if required
Again, price on application.

Price: $1953 + freight & handling + GST

Note: for optimum performance the Secondary Rheostat (2550-3-100R) should be purchased with this motor

This is a 3ph, 41.5 Vac, 44W, 4 pole, 50Hz, Wound-Rotor(Slip-Ring) Induction Motor(WRIM/SRIM)

The motor has six(6) leads terminated at the terminal box with 4mm diam. sockets
3 from the internally Delta(Δ) connected Primary Winding and 3 from the internally Delta(Δ) connected Secondary Winding

Connecting the Secondary Rheostat (2550-3-100R) to the secondary winding enables the motor to develop the motors maximum torque at start (Locked-Rotor)

Also, The Secondary Rheostat (2550-3-100R) enables the variable speed (under load) characteristic to be demonstrated. With the inclusion of wattmeter(MI 7033), voltmeter, and ammeters in the circuit it can be clearly demonstrated when varying the speed with a constant load, that while the shaft output power changes with the speed (Power proportional to speed), the input power remains constant. The difference in the shaft output power to the input power can be shown to be being dissipated as heat in the Secondary Rheostat

i.e. P(input) = P(shaft) + P(rheostat)

It can also be demonstrated that the rotor speed(RPM) is maximum when the motor is unloaded. This characteristic is ideal for use on cranes the hook can be raised or lowered at maximum speed when unloaded, but speed control and maximum torque is available when raising or lowering a load.

It will be noted that the Secondary winding is Delta(Δ) connected rather than the more common Star(Y) connection. The method of the Secondary winding connection can be either Star(Y) or Delta(Δ) and is determined by the design engineer. For this motor practical and mechanical winding issues dictated that the Delta(Δ) connection be used. From a teaching perspective this is an advantage, as a practical demonstration of this alternative method of connection.

It should be noted by the teacher:
In designing and manufacturing this motor in such a small frame size and power rating, required the relative position of the Primary winding and Secondary winding to be reversed. i,e, the Primary winding is the rotating member(Rotor) and the Secondary winding is the stationary member(Stator). The re-positioning of these winding is not (and purposely so) obvious.  Depending on the level of student knowledge, and to avoid confusion, teachers, at their discretion, may, or may not, wish to highlight this point to their students.  However, the design, again, has the advantage of practically demonstrating this alternative design.

The superior performance of this 4th generation motor over the 3rd generation Betts model is primarily due to the re-positioning of the primary and secondary winding

PLEASE NOTE, the “eme” 4th generation motor has totally eliminated the 3rd generation Betts model’s two inherent design defects;
1. inability to obtain maximum torque at start(locked rotor) which was due to the wound rotors high internal resistance, and
2. the rotor “locking” or “cogging” in operation.

Price: $685 + Freight & handling + GST

This motor has 6 leads terminated at the terminal box with 4mm diam. sockets enabling the the motor to be externally connected:

1. High speed operation (2 pole)2&4 pole Dharlander
2. Low speed operation (4 pole)

The motor was primarily developed to demonstrate the Dahlander(consequent pole) 2 speed connection

However, when used in conjunction with a “programmable-controller” (PLC) or “Programmable-Relay” it greatly increases the number of possible circuit configurations of motor control sequences when teaching circuit development.

As this motor has four(4) distinct physical and visual modes.
i.e. high & low CW rotation, and high & low ACC rotation

Price: $1953 + freight & handling + GST

This is a 3ph, 44W, 4 pole, Synchronous machine

It can be operated in the following modes:

1. Synchronous Generator (Alternator)
2. Synchronous Motor – Self starting(Induction)
3. Synchronous Capacitor

A separate 0>24 Vdc supply is required for field excitation

The machine is of the stationary dc field design

Price: $310 + Freight & handling + GST

Shunt field rheostat used to regulate the field current of the dc machine (71-0-B002-A)

161101-2-compound-motor-connections

Price: $450 + Freight & handling + GST

This is an external adjustable capacitor bank for used with the Capacitor Motor 71-3-T001-A 71-1-Cpf001 CapStart pf correction Diag

When connected in parallel with the Capacitor Start motor the motors running Power factor(pf) can be improved

Capacitance can be adjusted in steps of 10uf between 10 to 100uf pf correction table

Used in conjunction with the Power Meter(MI 7033) enables the recording and tabulation of the best results

This meter is a multipurpose Power Meter enabling all readings (W, I, V & pf) to be concurrently read using the one instrument. This eliminates unacceptable result irregularities created when using ’unmatched’ individual watt, volt & ampere meters of unknown accuracy

Price: $450 + Freight & handling + GST

This is an external adjustable capacitor bank for used with the Capacitor Motor 71-1-H100-A 71-1-CT001 CapStart Torque Diag

140306 circle diagram issue A

When used in place of the Capacitor motors inbuilt Starting Capacitance The motors starting capacitance can be adjusted in steps of 50uf between 50 to 750uf

With the capacitor motor coupled to the Eddy Current Dynamometer 56-0-L005-A the Locked-Rotor starting torque can be observed to increase with increase in starting capacitance

Price: $459 + freight & handling + GST

This is a ‘multi-functional’ 3 Phase Squirrel-Cage-Induction-Motor(SCIM) manual starter switch

It can be used to simultaneously demonstrate 3 methods of starting a 3 Phase SCIM motor, i.e.
1. Direct-on-Line(DOL), or Full Voltage starter,
2. Star/Delta, ‘Open circuit transition’ starter,
3. Star/Delta, ‘Closed circuit transition (‘Wauchope) starter.

SET-UP

Connect the six SCIM terminals to the six motor terminals on the starter switch (Note, in the correct sequence i.e. U1 to U1, V1 to V1 etc.)
Connect the external 3 phase 41.5V supply the the Input supply terminals on the starter

To best observe the operation of each starting method, connect a 5A Ammeter in series with Line 1(A1),  and a second 5A ammeter in series with motor lead U1 (A2).
And replace the standard metal coupling (090206-614) with the Inertia Wheel (130712-614)
.
.
Description of Starting Methods
.
1. D.O.L operation:
a. Rotate switch from ‘OFF’ in a clockwise(CW) direction one step to Δ (delta).
b. Note the currents and time (in seconds) for the Inertia Wheel to accelerate to full speed.
c, To switch off rotate switch Anti-clockwise(ACW) one step to ‘OFF’
.
2. Star/Delta – OPEN Circuit Transition operation:
a. Rotate ACW one step to ‘Y’ (Star).
b. Note the start Star connection currents (i.e. 1/3 the DOL value).
c. By observation of both the Inertia Wheel & Ammeters,
d. note the time (in seconds) for the Inertia wheel to accelerate to full speed.
e. When the current has been observed to fall to the minimum value, rotate the switch quickly CW two(2) steps to Δ (delta).
In this process it will be observed that the motor is disconnected from the line (as it passes through the ‘OFF‘ position) in order for the motors connections to be changed from Star to Delta.
i.e. ‘Open’ circuit transition’.
f. To switch off, rotate switch ACW one step to ‘OFF’
.
3. Star/Delta – Closed Circuit Transition (Wauchope) operation: a. Rotate the switch ACW one step to ‘Y'(star).
b. By observation of both the Inertia Wheel & Ammeters note the time (in seconds) for the Inertia Wheel to accelerate to full speed.
c. When the current has been observed to fall to the minimum value, relatively quickly rotate the switch ACW two steps through T1 to T2.         IMPORTANT, PLEASE NOTE:
Step T1 is the first stage of the transition from Star to Delta. It is here a set of 3 relatively low resistance resistors are connected both in Star and in parallel  with the motor,
Note, the resistors are connected across the full voltage and thus will be required to dissipate a large amount of heat.
In practice this is a momentary  transition step and the heat loss is negligible.
Thus the student must be instructed to only dwell at step T1 long enough to observe Ammeter readings.
A Prolonged stay at switch position T1 may cause the resistors to overheat and burn-out.
d. When the switch is at position T2 the star point is opened, Thus without disconnecting the motor from the line the motor winding and resistors are connected in Series and in Delta (i.e.a Delta connected primary resistance starter connection).
e. Rotating the switch ACW one more step to Δ (delta) short circuits the series resistors, thus connecting the motor in Delta across the full voltage with out disconnecting the motor from the supply.
i.e. ‘Closed Circuit Transition.
f. To switch the motor off rotate the switch ACW two steps to ‘OFF’.

Price: $300 + Freight & Handling + GST

This is a Manual SCIM : Forward-Stop-Reverse(Plug Brake) Motor Starter

This is a stand alone module is used in conjunction with the 3 phase Squirrel Cage Induction motor(SCIM) (Product Code: 71-3-L004)

The Starter can be used as a “Manual 3 phase Forward/Reverse switch”, &/or

to manually demonstrate “Plug Braking”, in either of two modes

1. Plug Braking with Full Voltage(i.e. Max. Braking Current), or
2. Plug Braking with current limiting resistance

For best braking effect the 3 phase SCIM should be fitted with the Inertia Wheel Coupling (Product Code: 130712/614)

Click below for CCT diagram

20200526 Plug brake-reverse 

Price: $260 + Freight & Handling + GST

This module is used in conjunction with the 3 phase Squirrel Cage Induction motor(SCIM) (Product Code: 71-3-L004) to demonstrate Dynamic Braking

This is not a ‘Stand Alone’ module. It is designed to be used as part of an automated ‘Power & Control’ CCT (click on CCT diagram below)

For the ‘Stand-Alone’ manual version, see Product Code 71-20-DB100

For best braking effect the 3 phase SCIM should be fitted with the Inertia Wheel Coupling (Product Code: 130712/614)

Click to view Circuit Diagram:180828-A Dynamic Brake Circuit Diagram

Price: $300 + Freight & Handling + GST

This module is used in conjunction with the 3 phase Squirrel Cage Induction motor(SCIM) (Product Code: 71-3-L004) to demonstrate Dynamic Braking

This is a ‘Stand Alone’ module.  (click on CCT diagram below)

For the Automated version, see Product Code 71-10-DB002

For best braking effect the 3 phase SCIM should be fitted with the Inertia Wheel Coupling (Product Code: 130712/614)

Click to view Circuit Diagram200607 Dynamic BrakeMANUAL ac ModuleCCT

Price: $82 + Freight & handling + GST

This set of three resistors are used to demonstrate the “Primary Resistance” method of reduced voltage starting of 3 phase Induction motors

The voltage is reduced to 80%

Note, in practice, the use of the ‘Primary resistance’ starter is a more cost efficient choice for reduced voltage starting of squirrel cage induction motors (SCIM). When a reduced starting voltage between full voltage(100%, or D.O.L.) and 80% of full voltage is required.

This is based on the ‘ratio’ of; the actual cost of the ‘Primary Resistance’ starter; to the cost of the energy dissipated (losses) within the starter (i.e. the resistors) during the motor staring sequence, when compared to that of the ‘Auto-Transformer’ starter.

For reduced starting voltages of 80%, and below, this cost ‘ratio’ (efficiency) swings in favour of the Auto-Transformer’ starter.

Price: $1176 + Freight & handling + GST

This is a 3 phase Auto Transformer, its primary function is to provide 80%, 65%, or 50% reduced starting voltage for the 3 phase Induction motor (71-3-L004-A).

DESCRIPTION:
This set of 3 auto transformers may be used, in conjunction with the 3 phase induction motor (71-3-L004-A) to demonstrate a method of 3 phase reduced voltage starting

This method of reduced voltage starting in known as either an:

Auto-Transformer Starter (the American term – refers to the type of transformer), or a
Compensator Starter (the English term – refers to the function of the transformer)

The transformers may be connected in either of two common configurations:
1. three (3) leg starter (i.e. one auto transformer in each of the 3 phases), Star(Y) connection; or
2. Two(2) leg starter (i.e. one auto transformer in only two(2) of the phases). Open Delta(∧)

Reduced voltages of 80%, 65%, or 50% may be selected

The transformer may be used to demonstrate either the:
1. Auto-Transformer(Compensator) Starter (i.e. Open-transition); or
2. Korndorfer Starter (i.e.Closed-circuit transition)
Note, the auto transformers have been designed to withstand the momentary short-circuit current which circulates within the auto-transformer during the closed-circuit transition stage from start to run

The auto-transformers can also be used to demonstrate the “single-wound” (non-isolating) ‘step-up’ or ‘step-down’ auto-transformer.

Also, the “DANGER” of using the “single-wound”(non-isolating) auto-transformer to ‘step-down’ voltage can be demonstrated (i.e. common section of the transformer winding accidentally going ‘open-circuit’ during operation)

120808-1 Auto transformer circuit diagram

120808-2 Auto transformer circuit diagram

Further, the student ‘must’ be made ‘very-aware’ of the, potentially fatal, “DANGER” of incorrectly connecting the common terminal on a variable voltage regulator (e.g. Variac™) which is simply an auto-transformer with a sliding (variable) secondary tap.

Price: $310 + Freight & handling +GST

This is a 3 phase rheostat used in conjunction with the wound rotor induction motor (71-3-L100) to demonstrate the effect of equalizing the Secondary resistance(R) withe the Rotor Reactance(XL) on the motor torque and speed

1. Maximum Starting Torque:
   By increasing the resistance of the secondary circuit, by adding extra external resistance into the secondary circuit, so that the secondary resistance in ohms equals the secondary  inductive reactance in ohms, the motor can produce it’s maximum torque at start (i.e. R=XL), and by the addition of suitable metering, it can be shown that the Primary starting current is reduced
2. Speed Control:
   By adjusting the value of added external secondary resistance, under load, the ability to gain speed control at constant torque is achieved.
   Again, by the addition of suitable metering, it can be shown that whilst the Primary input power and current remain constant throughout the speed range (at constant torque) the excess secondary energy is dissipated as heat through the external secondary rheostat resistance.

Price: $300 + Freight & handling + GST

This is a multi-functional rectifier which enable the demonstration of:

Half wave single phase

Full wave single phase

Half wave 3 phase

Full wave 3 phase rectification within the one module

190914 Multi-Functional Rectifyer Module

Price on Application

This a Heavy Duty NON-Regulated, dc power supply

Input:
240 Vac, 50Hz single phase

Output:
0>30 Vdc for light loads
0>24 Vdc, 30 A, at 50% duty

Price: $1026 + Freight & handling + GST

This is a 0>24 Vdc, 15 Adc, Regulated dc power supply

This power supply has the minimum recommended current capacity required to enable the optimum performance of the dc machine (71-0-B002-A) under load conditions.

Description:
Regulated switching Mode dc power supply
Light weight and small size power supply using switching technology.
Provides 360 watts of clean power
The output voltage is controlled with two high resolution potentiometers, One for course control and the other for fine precise voltage settings

Features
a wide ac input voltage 180V-132V( for 120V) and 196-264(for 230V)
High frequency operation reduces the size of power transformer
Small size, light weight and high power in small area
Efficiency is greater than 72%
Automatic control for voltage and constant current modes
Zero adjustment for the output of voltage and current

Price: $1026 + Freight & handling + GST

This is a 0>36 Vdc Regulated power supply

Used where voltage above 24 Vdc required

Description
Regulated switching mode dc power supply
Light weight and small in size using switching technology
Provides 360 watts of clean power
The output voltage is controlled with two high resolution potentiometers. one for course control and the other for fine precise voltage settings

Features
a wide ac input voltage 108-132V(for 120V) and 196-264V(for 230V)
High frequency operation reduces the size of power transformer
small size, light weight and high power in small area
Efficiency is greater than 72%
Automatic control for voltage and constant current modes
Zero adjustment for the output of voltage and current.

Price: $470 + freight & handling + GST

This is a 0 > 30V, 0 > 3A regulated dc power supply

This supply has the capacity to supply the separately excited field current for the dc machine (71-0-B100-A), eddy current machine (56-0-L005-A) & synchronous machine (71-3-L300-A)

Cost Price : $1625.00 + freight & handling + GST

Special: SMARTSTARTER 6000, 41.5 Vac, 3A starter

For use with ELV 3 Phase Motor (SCIM) Product Code 71-3-L004

Refer operation manual: http://www.zener.com.au/images/imi0042.pdf

Price: $1400 + Freight & handling + GST

3 phase Variable frequency drive

Input: 3ph, 41.5 Vac, 50Hz
Output: 3 ph, variable 0>41.5, 0>200Hz. 10A

This variable speed drive is suitable for all types of loads, producing greater motor torque over the full speed range with unique “Flux Pulse” control algorithm

Variable Torque Loads:
Quite motor operation (Audible frequency adjusted from 2 to 16kHz);
110% full overload capacity from 0>200Hz

Controlled ramp from 0,1 sec to 1 min:

Able to start into a high inertia load rotating at full speed without damage;
PID control for automatic process control;

Energy savings with speed reduction;
Soft stop to reduce water hammer problems

Constant Torque Loads:
Flux plus for torque maximisation

150%-175% full overload capacity from 0>200Hz;

Automatic Boost and slip compensation for fluctuating loads;

Dynamic Braking for rapid deceleration of high inertia loads (optional);

Configurable Analog & Data I/O

Zener manual p18

For full “Instruction Manual” click on link on the options below

http://www.zener.com.au/images/IM00120.pdf

http://www.zener.com.au/images/MSC3_Extended_Features_Option-Manual.pdf

Price: $4050 + Freight & handling + GST

Click on Drawing   191207 4208-13-T001 1 to 3ph power supply 

Power Supply – Single phase to 3 phase Rotary Phase Change Converter (1>3ph)                                                                                                              

Rating : 500 VA

Input: This unit Plugs into a standard 3 pin, 10A, 240V Low-Voltage(LV), 50Hz Single Phase, Power Outlet, or General Purpose Outlet(GPO)

Output: 3 phase, 4 wire(3+N), 41.5/24.0V Extra-Low-Voltage(ELV), 6.6A/phase, 50Hz (isolated) via 4 x 4mm banana terminals

The unit uses a 3 phase idler motor, in conjunction with capacitance, inductance and microprocessor technology to directly produce a 3 phase output having a relatively clean Analogue Sine Wave, low in harmonics.  Unlike Inverters which firstly rectify the incoming energy before chopping/switching the resulting dc link into a simulated, digitised, synthesised, harmonic laden sine wave 3 phase look alike output

This power supply has been designed for use in rooms not fitted(wired) with a 415V 3 phase power supply or outlet

The unit enables any room/area fitted with a standard Low Voltage(LV)240V single phase 3 pin, 10Amp power outlet (GPO) to run 3 phase ELV electrical subjects/modules

The unit will support both single & 3 phase, inductive, capacitive and resistive loads

Thus eliminating the need for traditional, expensive, high cost, dedicated, limited use, electrical machine laboratories fitted/wired with the higher, potentially more hazardous, 415Volt, 3 phase outlets

Approx. Size: 430x355x440mm .

Overall weight approx. 34kg

Fitted with 2 carrying handles

Price: $4345.00

This is the same product as 4210-3-R001A but with a 3 phase variable output, and 10A. 3 pole, circuit breaker and 4mm terminals (3ph+N) fitted into the enclosure

Safety,  Earth Screened, Double Wound, Isolating Transformer Manufactured to AS/NZS 51558

Rating: 500VA
Input: 415 Vac, 3 phase, 3 wire (3ph+E), Delta(Δ) connected
Output: Variable 0>41.4/24.0 Vac, 3 phase, 4 wire (3ph+N), Star(Y) connected

Important:
These transformers are wound with three 415Vac Primary winding

connected in Delta(Δ) and their associated three Secondary 24Vac winding connected in Star(Y), i.e. Delta/Star(ΔY) configuration
RECOMMENDED

The 240 Vac Star/24 Vac Star. i.e.Star/Star (YY) configuration is NOT recommended. This will produce internal harmonics and unbalanced secondary output voltages under load.  This in turn will produce non-repeatable student test readings and results

The transformer is supplied in a sheet-metal, powder coated, enclosure

Input is to be hard wired to internal primary terminals

The unit comes supplied with the output 10A, 3 pole, circuit breaker and four 4mm diam binding posts (3ph+N) fitted into the metal enclosure

To limit the voltage drop (under load) it is recommended to install one(1) only 500VA transformer per work station

The use of one large VA master transformer to supply a number of work stations is not recommended

With the secondary extra-low-voltage output and relatively high and constantly varying load currents (V=I²R volt drop) it will be found that the terminal voltage at each work station will be constantly varying (caused by the variations at the other work stations) making it extremely difficult for students to obtain sensible and repeatable , meter readings and test results

Price: $946 + Freight & handling + GST

Safety,  Earth Screened, Double Wound, Isolating Transformer Manufactured to AS/NZS 51558

Rating: 500VA
Input: 415 Vac, 3 phase, 3 wire (3ph+E), Delta(Δ) connected
Output: 41.4/24.0 Vac, 3 phase, 4 wire (3ph+N), Star(Y) connected

Important:
These transformers are wound with three 415Vac Primary winding connected in Delta(Δ) and their associated three Secondary 24Vac winding connected in Star(Y), i.e. Delta/Star(ΔY) configuration
RECOMMENDED

The 240 Vac Star/24 Vac Star. i.e.Star/Star (YY) configuration is NOT recommended. This will produce internal harmonics and unbalanced secondary output voltages under load.  This in turn will produce non-repeatable student test readings and results

The transformer is supplied in a sheet-metal, powder coated, enclosure (250 x 200 x 200)

Input is to be hard wired to internal primary terminals

The unit comes supplied with a separate output. bench top mounted, panel fitted with a 10A, 3 pole, circuit breaker and four 4mm diam binding posts (3ph+N) for hard wiring to internal secondary terminals on the transformer, (note, connecting cable not supplied)

To limit the voltage drop (under load) it is recommended to install one(1) only 500VA transformer per work station

The use of one large VA master transformer to supply a number of work stations is not recommended

With the secondary extra-low-voltage output and relatively high and constantly varying load currents (V=I²R volt drop) it will be found that the terminal voltage at each work station will be constantly varying (caused by the variations at the other work stations) making it extremely difficult for students to obtain sensible and repeatable , meter readings and test results

For optimum operational performance at minimal “voltage-drop” under-load the Secondary ELV (41.5V) the following minimal output cable sizes are recommended:

Maximum cable run between transformer and Load

Up to 6m  use 2.5mm²

between 6m and 10m use 4mm²

between 10m and 14m use 6mm²

between 14m and 25m use 10mm²

Price: $946 + Freight & handling + GST

This is the same product as 4210-3-R001A but with the output 10A. 3 pole, circuit breaker and 4mm terminals (3ph+N) fitted into the enclosure

Safety,  Earth Screened, Double Wound, Isolating Transformer Manufactured to AS/NZS 51558

Rating: 500VA
Input: 415 Vac, 3 phase, 3 wire (3ph+E), Delta(Δ) connected
Output: 41.4/24.0 Vac, 3 phase, 4 wire (3ph+N), Star(Y) connected

Important:
These transformers are wound with three 415Vac Primary winding connected in Delta(Δ) and their associated three Secondary 24Vac winding connected in Star(Y), i.e. Delta/Star(ΔY) configuration
RECOMMENDED

The 240 Vac Star/24 Vac Star. i.e.Star/Star (YY) configuration is NOT recommended. This will produce internal harmonics and unbalanced secondary output voltages under load.  This in turn will produce non-repeatable student test readings and results

The transformer is supplied in a sheet-metal, powder coated, enclosure (250 x 200 x 200)

Input is to be hard wired to internal primary terminals

The unit comes supplied with the output 10A, 3 pole, circuit breaker and four 4mm diam binding posts (3ph+N) fitted into the metal enclosure

To limit the voltage drop (under load) it is recommended to install one(1) only 500VA transformer per work station

The use of one large VA master transformer to supply a number of work stations is not recommended

With the secondary extra-low-voltage output and relatively high and constantly varying load currents (V=I²R volt drop) it will be found that the terminal voltage at each work station will be constantly varying (caused by the variations at the other work stations) making it extremely difficult for students to obtain sensible and repeatable , meter readings and test results

For optimum operational performance at minimal “voltage-drop” under-load the Secondary ELV (41.5V) the following minimal output cable sizes are recommended:

Maximum cable run between transformer and Load

Up to 6m  use 2.5mm²

between 6m and 10m use 4mm²

between 10m and 14m use 6mm²

between 14m and 25m use 10mm²

Price: $328 + Freight & handling + GST

42/24 Vac, 100VA, Single-Phase, Double-Wound, isolating, step-down, transformer

Used for demonstrating transformer polarity check, and the Paralleling of transformers

Price: $930 + Freight & handling + GST

This is a 100VA, 3 phase, 42/24 Vac, Double-Wound. isolating, ELV, transformer

All primary and secondary winding leads are brought out and terminated at the terminal plate to 4mm diam, sockets

This allows the student to connect either he primary or secondary in Star(Y), Delta(Δ) or Open Delta(∧)

Carryout Polarity check, and connect in parallel with one or more 3 phase transformers

Price: $165 + Freight & handling + GST

Used to clip-on and couple two(2) machines together for load testing

Fully compatible and interchangeable with the former Betts equipment

Price: $30 + Freight & handling + GST

Coupling – Metal

Bore: 11m diam,
suitable for metric 63 Frame motors
For safety reasons all rotating machines are sold with a metal coupling fitted

The couplings outside diameter and length are designed to be comfortably and safely gripped in the palm of the hand to enable the student to stall the machines in the “locked Rotor” position so as to physically feel the locked rotor torque of the machines under various starting modes.

The six(6) drive holes on the face of the coupling are the same diameter and are on the same pitch-circle-diameter (PCD) as the former Betts coupling . Thus the coupling is fully compatible with the Betts equipment.

Note,
Other non-standard bore sizes can be produced.

Please request a quote stating the required bore size.

Price: $22 + Freight & handling + GST

Coupling – Metal

Bore: 14m diam,
suitable for metric 71 Frame motors
For safety reasons all rotating machines are sold with a metal coupling fitted

The couplings outside diameter and length are designed to be comfortably and safely gripped in the palm of the hand to enable the student to stall the machines in the “locked Rotor” position so as to physically feel the locked rotor torque of the machines under various starting modes.

The six(6) drive holes on the face of the coupling are the same diameter and are on the same pitch-circle-diameter (PCD) as the former Betts coupling . Thus the coupling is fully compatible with the Betts equipment.

Note,
Other non-standard bore sizes can be produced.

Please request a quote stating the required bore size.

Price: $705 + Freight & handling + GST

Multi Function Power Meter

MI 7033 Power Meter – Instruction manual

The electronic power meter permits direct power measurements on DC systems as well as active power on single phase AC systems and on 3-wire, 3ph systems of balanced load

The meter measures Power Factor(pf)(cos f) lag or lead, on 3-wire, 3ph systems of balanced load

The meter also reads phase sequence

In addition the power meter can be used to directly measure current and voltage on DC and single phase systems

It is also possible to use the meter for reactive power measurements on 3ph systems of balanced load and also for interlinked voltages

The lower range settings available on this meter enable power readings to be taken within the ranges consumed by the ELV motors

i.e. range: 0.25 A, 50V =    12.5W   Full-Scale-Defection(FSD)
1.0  A, 50V =    50   W    FSD
5.0 A,  50V =  250    W   FSD

NOTE
Price may vary due to
Price dependent on quantity ordered and A$ exchange rate at time of application

Price: $756 + Freight & Handling + GST

Tension Gauge

Replacement Force gauge used on both the Betts and the ’eme’ Eddy Current Dynamometer/load/brake (56-0-L005-A)

Price: $45 + freight & handling + GST each

Meters supplied ‘un-mounted’

Meter dimensions : 100 x 80 mm

Available Ranges:

Product No’s

PM-0-30V : Volts dc: 0>30V :

PM-C-30V : 30 > 0 > 30 Volts dc centre Zero

PM-0-05A : 0 > 5 Amp dc

PM-0-10A : 0 > 10 Amp dc

PM-C-010mA : 10  > 0 > 10 milli Amp dc centre zero

PM-C-100mA : 100 > o > 100 milli Amp dc centre Zero

PM-1-50V :   0 > 50 Volt ac

PM-1-05A :  0 > 5 Amp ac

PM-1-10A : 0 > 10 Amp ac

Other Ranges available, price on application

Price: $70 + freight & handling + GST each

Meters mounted in a fully insulated PVC box which sits on the bench with the meter face at 40° to the bench for easy reading                      fitted with Standard 4mm socket connection

Meter dimensions : 100 x 80 mm

Available Ranges:

Product No’s

PM-0-30V-A : Volts dc: 0>30V :

PM-C-30V-A : 30 > 0 > 30 Volts dc centre Zero

PM-0-05A-A : 0 > 5 Amp dc

PM-0-10A-A : 0 > 10 Amp dc

PM-C-010mA-A : 10  > 0 > 10 milli Amp dc centre zero

PM-C-100mA -A : 100 > o > 100 milli Amp dc centre Zero

PM-1-50V-A :   0 > 50 Volt ac

PM-1-05A -A :  0 > 5 Amp ac

PM-1-10A-A : 0 > 10 Amp ac

Other ranges available, price on application

Price: $189 + freight & handling + GST

Fully insulated Lamp panel containing 4 individually switched Batten(BC) lamp holders, fitted with 4mm socket connectors

Used with incandescent lamp bulbs

Note, Edison Screw(ES) Batten holder available on request

• Price:   1 to 24 $10 + freight + GST each
  •    25 to 49 $ 9 + freight + GST each
  •    50 plus  $ 8 + freight + GST each

Incandescent Lamp(light) Bulb

Used as a RESISTIVE LOAD in conjunction with LOAD BANK 4L-X-R001

32 Volt 60 Watt, Bayonet Cap, Clear

Price on application

Extra-Low-Voltage, Low-Voltage & communications distribution centre for wiring practical cubicles or panels

The Low voltage supply is segregated by a continuous internal barrier from the Extra-Low-Voltage & communications supplies within the box

Size of Distribution box:  250 x 250 x 75
Material:  sheet-metal
Finish: Powder coated

Other arrangements. configurations &/or sizes can be designed and quoted on request

• Price:   1 to 24 $10 + freight + GST each
  •    25 to 49 $ 9 + freight + GST each
  •    50 plus  $ 8 + freight + GST each

Incandescent Lamp(light) Bulb

Used as a RESISTIVE LOAD in conjunction with LOAD BANK 4L-X-R001

32 Volt 75 Watt, Bayonet Cap, Clear

Price: $120 + GST + freight & handling

Hose kit for use with Water Pump Module JPD38

Consists of:

30m x 12mm clear Plastic Vinyl tubing & 3 sets of click-on hose fittings(3 x Universal Tap Adaptor, 3 x 13mm Micro Clip-On Connector, 3 x Hose clamps)

Price: $2.74 each + Freight & handling + GST

4mm diam. sockets:
available in 10 colours

When ordering quote colour code from following:
Red     =  S446-1
Blue    =  S446-2
White  =  S446-3
Black    =  S446-4
Yellow  =  S446-5
Green   =  S446-6
Brown   =  S446-7
Grey     =  S446-8
Violet   =  S446-9
Orange  =  S446-10