Three Phase Meter Test Bench
● PWM (Pulse width modulation) technology
● Modular design allows customized configurations on hardware and software, customer-friendly
● Perform all basic tests like creep test, start test, basic errors, standard deviation and etc.
● Perform dial test with pulse counting & timing base with KWH value
● Mode of tests: Fully-automatic, semi-automatic, or manual by manual control touch screen (MCU)
● Able to test all types of single phase and three phase mechanical meters and electronics meters; different
● type of meters could be test simultaneously; including test of close-link meter (optional for ICTs required for each meter position)
● There are error calculation reset buttons in error testing panel of each meter position; error of each meter is shown on LED display timely.
● Quick connector device (QCD) for quick connect the meters on the rack; Quick connector will be convenient to changeover from three phase meter to single phase meter
●Black mark search & capture for rotation disk
●Able to calibrate mechanical or electronics meters three different constants at the same time
●Powerful PC software for data analyzing, waveform playback and detailed report exportation
●Universal barcode input, and supports self-defined barcode
Accuracy class of Reference Standard Meter: 0.05 or 0.02 (optional)
Output Voltage:
Ranges: 3 x (0-480V) (or following customer requirement), 0 ~ 120% adjustable
Resolution: 0.01%
Distortion: ≤ 0.5%
Output Stability: ≤0.05% or 0.02% /3minutes
Capacity: ≥50VA/position (depends on meter position quantity and customer requirements)
Output Phase angle:
Adjustment range: 0° ~ 360°
Resolution: 0.01°
Output current:
Adjustment range: 3 x (1mA ~ 100A), 0-120%
adjustable.
Resolution: 0.01%
Distortion: ≤ 0.5%
Output Stability: ≤0.05% or 0.02%/3minutes
Capacity: ≥100VA/position (depends on meter position quantity and customer requirement and with ICTs or not)
Output frequency
Adjustment range: 45Hz ~ 65Hz
Resolution: 0.01Hz
Others
Time base: 1 ~ 9999s
Insulation between Voltage circuit vs. Current circuit, Between circuits vs. Earth: ≥ 5MΩ
Power supply: 240V or 3×240V/415V±10%, 50/60Hz±10%
Ambient conditions: Temperature 50C ~ 400C
Relative humidity: up to 90%
Configurations
1. Three phase Power source (PS)
2. Three phase Standard reference meter (SRM), class 0.05 or 0.02
3. The Rack
● Number of positions: 3, 6, 10, 12, 20, 24, 32 (or customer requirement)
● Number of positions (with ICT): maximum 20 positions and depend on customer requirement
● Each rack equip 1 emergency STOP switch
● Each posistion consist of: 1 QCD 6/8/10 pins + 1 scanning head + 1 meter clamping + 1 RS/232/485 communication port + 1 error display + 1 RESET button + 1 Set of voltage cable+1 ICT (need ICT or not depends on customer)
4. Control software
5. Manual control keyboard
6. Details operation manual including PC software manual
7. Optional
● Isolated Current Transformer (ICT)
Accuracy class: 0.01% (0.5C-1-0.5L)
Current Ratio: 1:1 (1mA-120A)
Current output: 3*(0.001-120)A (both primary and secondary)
Secondary Output load: Maximum 0.5V (output current 1mA-120A)
● Personnel Computer
● Printer
