1. Introduction

TJS-3000E three phase energy meter test bench is a new generation, high precision energy meter calibration equipment. It uses the advanced technology and electronic components available in 90 decade. The test bench can be operated from embedded keyboard or operated from PC software.

2. Feature and function

1) Equipped with electronic phantom load power source, assuring high stability, security and large output capacity.
2) Automatic adjustment of current measurement range. Fault self-detection in voltage amplifier and current amplifier.
3) Equipped with RS-232C interface, can be operated from software.
4) Test results are saved to database, can be inquired from database and can be export to EXCEL file and then printed out.

3. Technical specification

Specification of power source:
Power and consumption:
Power supply: 3P4W 3x220V±10％
Max consumption: 6000VA
Current source:
Output current: 3×0.1A-3×100A
Adjusting resolution: 0.01％ (min. 0.0001A)
Power phase: 0~360°; resolution: 0.01
Output frequency: 45Hz~65Hz;
THD(sine wave output): <1.0％
Stability of current during sine wave output: 0.1％ (180s) Output wave: sine wave
2-21 harmonic wave, total should be less than 40％
Odd harmonic waveform
Sub harmonic waveform
Output capacity: 50VA per meter position(max)

Voltage source:
Output voltage: 3×30V - 3×400V
Load: The Load could be resistor / inductive / capacitive(<4uF)
Adjusting resolution: 0.01％ (min. 0.1V)
Output frequency: 45Hz~65Hz;
THD (sine wave output): <1.0％
Voltage stability of power source during sine wave output: 0.1％ (180s)
Output wave: sine wave
2-21 harmonic wave, total should be less than 40％
Output capacity: 15VA per meter position

4. Reference Meter
:
Power and consumption:
Power supply: 1P2W 220V ±10％, 50Hz or 60Hz;
Max consumption: 30VA
Voltage input: 3×30V-3×480V (AC)
Current input: 3×0.01A-3×100A (AC)
Accuracy:0.05％ (0.02％ Optional)
Active power: 0.05％ (PF>0.5)
Reactive power: 0.1％ (PF>0.5) Warm up time: < 2 minutes
Dimension: 482mm X 380mm X 140mm
Weight: <7.5 kg

5. Error Calculator Technical specification

Impulse of tested meter could be: TTL / OC / Optical head
Max. frequency of impulse could be: 200Hz
Error display range: 0.001％-99.99％

6. ICT (Isolation current transformer)

Power and consumption:
Max consumption: 50VA
Current input: 0.1A-100A (AC)
Accuracy: 0.05％
Warm up time: < 5S
Dimension: 220mm X 220mm X 220mm
Weight: <25Kg

7.Goods list

1) Three phase power source
2) Three phase meter rack
3) Three phase Reference meter
4) Impulse input cable
5) RS232c communication cable
6) Optical sensor etc. all necessary parts