Mounting panel design for components facilitates operating and replacing components, and features expansion ability. In addition, typical and practical hands-on exercises can be performed

The system is 3-phase 4-wire AC voltage operated

Available voltage type and current type leakage protections ensure the human safety.

All devices and components have been brought out to terminals to avoid damage to the components caused by repeated exercises

The workbench allows two trainees operation simultaneously.

The workbench features two independent power supplies controlled by start/stop buttons and emergency stop button, short-circuit protection is available for the power output.

AC power supply

Supplies 380V line voltage and 220V phase voltage, provides several single-phase and 3-phase power sockets.

Rectification diode

Comes with four 1N5408 diodes for dynamic braking circuit.

Resistor

Contains three 75Ω/75W power resistors for reduced voltage starting circuit, and one 10Ω/25W power resistor for dynamic braking circuit.

WD041 unit

Provides a 2-pole RCCB, two 3P fuses, a knife switch, and a single-phase watt-hour meter.

WD042 unit

Includes two Edison lamp holders, three switch boxes, a ballast, a starter, and a fluorescent lamp.

WD043 unit

Offers 3 AC ammeters and 3 current transformers.

WD044 unit

Comprises an AC voltmeter, a 3-phase power factor meter, and a voltage indication switch.

WD045 unit

Contains a 3-phase 3-wire active watt-hour-meter.

WD046 unit

Supplies a 3-phase 4-wire active watt-hour-meter

WD047 unit

Provides a 3-phase 4-wire reactive watt-hour-meter.

PDZ11 three-phase load

Comes with 3-phase resistive load and 3-phase capacitive load.

Hands-on exercises

Lamp control with a switch and socket (incandescent lamp, fluorescent lamp, and 2-pole RCCB)

Lamp control with two 2-gang switches (incandescent lamp, fluorescent lamp, and 2-pole RCCB)

Lamp control with three switches (incandescent lamp, fluorescent lamp, and 2-pole RCCB)

Connection of fluorescent lamp

Connection of incandescent lamp control circuit with sound control switch

Connection of incandescent lamp control circuit with touch delay switch

Connection of incandescent lamp control circuit with PIR switch

Direct connection of single-phase watt-hour meter

CT connection of single-phase watt-hour meter

Connection of voltmeter and ammeter

3-phase voltage measurement using universal change-over switch and voltmeter

Connection of single-phase control circuit with a current transformer

Wye connection of three current transformers

Delta connection of three current transformers

Connection of 3-phase power factor meter

Connection of 3-phase 3-wire active watt-hour meter

CT connection of 3-phase 3-wire active watt-hour meter

Connection of 3-phase 4-wire active watt-hour meter

CT connection of 3-phase 4-wire active watt-hour meter

Connection of 3-phase 4-wire reactive watt-hour meter

CT connection of 3-phase 4-wire reactive watt-hour meter

-digit multimeter

DC voltage: 200mV/2V/20V/200V/1000V ±(0.5%+3)

AC voltage: 2V/20V/200V/750V ±(0.8%+5)

DC current: 20μA/2mA/200mA/20A ±(1.5%+3)

AC current: 2mA/20mA/20A ±(1.5%+5)

Resistance: 200Ω/2kΩ/20kΩ/200kΩ/2MΩ/20MΩ ±(0.8%+5)

Conductance: (0.1-100)nS ±(1.0%+30)

Capacitance: 20nF/200nF/20μF/200μF ±(4.0%+10)

Frequency: 20kHz ±(1.5%+25) temperature: -40^oC-1000^oC ±(0.75%+3)

Other functions: diode test, transistor test, continuity buzzer, low battery indication, data hold, auto shutdown, resettable fuse protection, shockproof protection, input impedance 10MΩ, sampling rate: 3 S/s, AC frequency response: 40-400Hz, manual ranging, max. reading: 1999 ( -digit)

CONFIGURATION:(As per one set)

3 1/2-digit multimeter

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Tools and connecting leads

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User's manual and other technical materials

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