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Three-phase energy meter field calibrator
e) The manual and photoelectric settings are not correct;
②
Check whether the direction of the clip-on ammeter is reverse.
4.4 Q: At the time of field test, the error fluctuation is obvious, how do?
A: There are several possible reasons:
a) In direct sunlight, it is best to use an object to cover the photoelectric sampler, to
prevent light from interfering the photoelectric sampler
b) The load fluctuation is too large, and the reaction rate of the meter and instrument is
different. You can increase the number of turns;
c) The harmonic fluctuation is large, the ordinary energy meter, under instable
conditions, often measures only the fundamental wave, which will cause the error to
be too large and unstable.
4.5 Q: At the time of field measurement, there is no current, why?
A: Check whether the current input settings are in line with the configuration of the
instrument input mode.
4.6 Q: At the time of measurement of integrated error, the error is large, why?
A: There are several possible reasons:
a) The on-site load is instable;
b) Clip-on ammeter connects to TA secondary current;
c) TA transformation ratio is wrong;
Summary of Contents for HZGC3521 Series
Page 8: ...7 Three phase energy meter field calibrator 1 2 Introduction to top panel structure...
Page 9: ...8 Three phase energy meter field calibrator 1 3 Introduction to right panel structure...
Page 10: ...9 Three phase energy meter field calibrator 1 4 Back Introduction...
Page 31: ...30 Three phase energy meter field calibrator 2 7 Description of Function Keys...
Page 40: ...39 Three phase energy meter field calibrator...
Page 70: ...69 Three phase energy meter field calibrator...
Page 79: ...78 Three phase energy meter field calibrator...