EPHV-NT Model B residual current circuit breaker tester (hereinafter referred to as the tester) is specially developed for the performance test of residual current circuit breaker. It is the key instrument to detect the trip current and break time of type B residual current circuit breaker.
The functions of the tester can meet the test requirements for residual current circuit breakers in IEC61008-1:2012 MOD, IEC 61009-1: 2012, MOD standards.
The tester is suitable for electronic and electromagnetic residual current circuit breakers. Circuit breakers of 1P+N, 2P, 3P, 3P+N and 4P can be tested, and the maximum residual current output is 2A.
The function of the tester is operated by touch screen. After the circuit breaker is operated, the tripping current and breaking time can be maintained, which is convenient for reading and recording.
The system display and operation adopt the popular industrial touch screen, which is simple to operate.
Please read the instructions carefully before using the instrument.
2. Basic Parameters and Performance Indicators
2.1 Basic Conditions for the Use of Instruments
Ambient temperature: 0 - 40 ºC
Environmental relative humidity: not more than 80% RH
Power Voltage Requirements: 220V, 50Hz AC (Instrument Power Supply)
Auxiliary Power Requirements: Three-phase four-wire input 380V, greater than 2A
Grounding mode: reliable grounding
2.2 Output Current Range and Accuracy of Instrument
The output current of the tester is true RMS, and the uncertainty of the test is less than 1%. (1) AC residual current range of frequency conversion mode: 0-2A (2) 50 Hz AC residual current range: 0-2A (3) Pulsating DC Residual Current The pulsating DC residual current with an optional angle of 0°, current ranges is 0~800 mA.
The selection angle is 90°of DC residual current, current range is 0 ~ 400 mA.
The selection angle is 135 °DC residual current, current range is 0 ~ 200 mA.
(4) Smoothing DC residual current, the range of residual current is 0-2A;
(5) The range of superimposed smooth DC is 5-100 mA.
(6) Time test: Within the range of 0-1000ms, the deviation of breaking time measured by leakage tester from the measured value is ±2 ms.
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