2. Specification
2.1 The test bench accuracy class:0.05/ 0.1/0.2 class
2.2 Reference standard energy meter:
HC3101A Accuracy class: 0.05 /0.1
2.3 MSVT (multi secondary voltage transformer) class: 0.01
Secondary VA rating: 12VA every meter
2.4 Voltage amplifier:
Output voltage range: 50-288V
Output power: ≥15VA(every meter)
Resolution: 0.01%
Stability: Better than 0.1%/3 min
Distortion factor: < 0.5% at linear load
Frequency range: 45Hz~65Hz
Power efficiency: More than 85%
Ambient temperature: 10ºC~50ºC
2.5 Current amplifier:
Output current: Range: 1mA~120A (1mA~200A optional)
Output maximum power: ≥25VA(every meter)
Resolution: 0.01%
Stability: Better than 0.1%/3 min
Distortion factor: < 0.5% at linear load
Frequency range: 45Hz~65Hz
Power efficiency: Greater than 85%
Ambient temperature: 10ºC~50ºC
2.6 Phase Angle: 0°~360°, resolution of phase angle setting: 0.01°
2.7 Output frequency range: 45Hz~65Hz; Resolution: 0.01Hz
2.8 Output stability of power:<0.1% (180s)
2.9 Numbers of calibrated energy meter: 24 (12/24/48/60 on requested)
2.10 Input power: AC220/240V 15%, 50/60Hz
1. Features 1.1 The bench accords with the standard of "IEC 60736: 1982 testing
Equipment for electrical energy meters".
1.2 The bench can be used to test single phase energy meter (up to 0.5
Class).
1.3 The bench can do warm up test, starting test, no load test
(creep test), error test(accuracy test), dial test, tests of the influence
Quantities and test of repeatability of the measurements.
1.4 The bench is using the PWM, technology to amplify 6
Voltage/current output, the high efficiency at >85%, and lower the
Heat. The PWM can check the malfunction checking, preset, alarm,
And protection.
1.5 The signal source is using the newest digital controlled sine
Wave technology for frequency, amplitude and phase adjust.
1.6 The bench is using comparison technology to test the error of
Energy meters.
1.7 The bench is using the error processor system to calculate the
Error of each energy meter by the sub-error system which can be
Connected by the internal RS485.
1.8 Different constant energy meter can be tested at one time.
1.9 Voltage is isolated by MSVT (multi secondary voltage
Transformer) output, which suits for the voltage/current close-link
Test of signal phase energy meter.
1.10 The test bench can be installed scanning head, it can offer 3
Ranges adjustment. It is also can be accepted the signal for both
Round-style energy meter and digital LED energy meter.
1.11 The test bench has the auto-search black marker function
Which can precisely locate the black marker during the no load test
And starting test.
1.12 The bench can choose to operate by keyboard or PC which is
Very convenient.
1.13 The working status of bench can be seen very clear and easy
Operation.
1.14 The bench is using the testing software complied with
Windows98/2000/XP which can auto-testing different energy
Meters.
1.15 The software can realize the data from energy meter for
Statistics, search and management.
1.16 The energy meter hanging rack is made by Aluminum
Compound. The whole device configuration is a reasonable design
And nice outfit.
