Single phase KWH meter calibration test bench from China factory
USD $14,700 - $14,700 /Piece
Min.Order:2 Pieces
Yueqing Yomin Electric Co., Ltd.
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High Accuracy Single phase energy meter test bench
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 can be saved to database, can be inquired from database and can be printed out.
1.Error caculator
2.Screw for tested meter
3.Bracket for tested meter
4. RS485 communication port
5. pulse input
6. power switch
7. Power on for amplifier
8. Power off for amplifier
9. Keyboard / output display and signal generator
10. on line/off line switch
11. three phase reference meter
12. voltage terminal for tested meter
14.phantom load power source
(voltage source amplifier and current source amplifier)
(voltage range shifter and current range shifter)
Specification of phantom load power source:
Power and consumption:
Power supply: 3P4W 3x220V ±10%)
Max consumption: 3000VA ( 12 meter positions )
Current source:
Output current: 3×0.001A-3×120A
Adjusting resolution: 0.01% (min. 0.0001A)
Output frequency: 45Hz~65Hz;
THD(sine wave output): <0.8%
Stability of current during sine wave output:
0.05% (180s)
Output wave: sine wave
2-21 harmonic wave, total should be less than 40%
Odd harmonic waveform
Sub harmonic waveform
Output capacity: 20VA per meter position
Voltage source:
Output voltage: 3×30V - 3×480V
Load: The Load could be resistor / inductive / capacitive(<4uF)
Adjusting resolution: 0.01% (min. 0.1V)
Output frequency: 45Hz~65Hz;
THD (sine wave output): <0.8%
Voltage stability of power source during sine wave output:
0.05% (180s)
Output wave: sine wave
2-21 harmonic wave, total should be less than 40%
Output capacity: 15VA per meter position
Reference Meter:
Power and consumption:
Power supply: 1P2W 220V/240V ±10%, 50Hz or 60Hz;
Max consumption: 30VA
Voltage input: 3×30V-3×300V (AC)
Current input: 3×0.001A-3×100A (AC)
Accuracy:
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: <7.5Kg
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%
1) Three phase power source 1
2) Three phase meter rack (12/16 positions each rack)
3) Reference meter 1
4) Pulse input cable 1 for each position
5) Rs232c communication cable 1
6) Voltage supply cable 1 set for each position