Single Phase Meter Test Bench

Accuracy Class:

Class 0.1 with SRM class 0.05;   Class 0.05 with SRM class 0.02

Output Current:

Adjustment range: 1mA~ 120A (or customer requirement)

Resolution: 0.01%

Distortion: ≤ 0.5%

Accuracy & Stability: ≤ 0.05%

Capacity: ≥ 50VA/position (depend on positions quantity)

Output Frequency

Adjustment range: 45Hz ~ 65Hz

Resolution: 0.01Hz

Output Voltage:

Adjustment range: 0 ~ 288V (or customer requirement)

Resolution: 0.01%

Distortion: ≤ 0.5%

Accuracy & stability: ≤ 0.05%

Capacity: ≥ 25VA/position (depend on positions quantity)

Output Phase Angle:

Adjustment range: 0° ~ 360°

Resolution: 0.01°

Others

Time base: 1 ~ 9999s

Insulation between Voltage circuits vs. Current circuit, between circuits vs. Earth: ≥ 5MΩ

Power supply: 220V or 3×220V/380V±10%, 50/60Hz±10%

Ambient conditions: Temperature 5⁰C ~ 40⁰C

Relative humidity: up to 90%

Configurations

1. Single phase Power source (PS)

2. Single phase Standard reference meter (SRM), class 0.05 (or class 0.02 or 0.1 on demand)

3. The Rack

● Number of positions: Customizing on demand by end-user (6, 10, 12, 20, 24, 30, 48 …positions)

● Each rack equip 1 emergency STOP switch

● Each posistion consist of: 1 QCD 3 pins + 1 scanning head + 1 meter clamping + 1 RS/232or485 communication port + 1 error display + 1 RESET button + 1 Set of voltage cable

● Short connection cables over empty positions 4. PC Control software 5. Manual control by touch screen 6. Optional

● MSVT (Multi-secondary voltage transformer) purpose to test the meters with close-link circuit    

- Accuracy class: 0.01%

- Ratio: 1:1

- Nominal Input/Output voltage: 220V

- Maximum Input/Output voltage: 300V

- Number of secondary: Equal to number of positions

 ● Personal Computer

● Printer