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Analysis of Common Faults and Solutions of Shanghai Duan Analysis Double Clamp Phase Volt-ampere Meter
Digital double-clamp volt-ampere phase meter is a multi-function instrument designed for field testing. It can directly measure AC voltage and AC current when the circuit under test is not open circuit. It can measure between two voltages, between two currents and between voltage and current. Phase, in addition, can also indirectly measure the power factor and power of the circuit, can distinguish three-phase phase sequence, transformer wiring group, inductive, capacitive circuit, test secondary circuit and busbar protection system, read differential protection The phase relationship between CTs in the group, checking the correctness of the wiring of the meter, and repairing the line equipment. With high precision, high stability, low power consumption, easy to use and so on. Digital double-clamp volt-ampere phase meter is applicable to electric power, petrochemical, metallurgy, railway, meteorology, industrial and mining enterprises, scientific research institutions, and measurement departments.
Digital double-clamp phase volt-ampere meter common faults and solutions
One, digital double clamp phase volt-ampere meter does not measure the voltage or voltage is not allowed:
1, double clamp phase meter voltage line is not connected or poor contact
2, double clamp phase meter battery voltage is insufficient.
3, did not turn the double clamp phase table rotary switch to U1 or U2 file;
Second, digital double-clamp phase volt-ampere meter does not measure phase or phase inaccurate:
1, double clamp phase meter input signal is not connected;
2, double clamp phase meter battery voltage is insufficient.
3. When using the double-clamp phase meter to measure the phase, only one signal can be input per channel. If a voltage is input, the current should be unplugged;
Third, digital double clamp phase volt-ampere meter does not measure the current or current is not allowed:
1, double clamp phase meter current clamp wire is not energized or poor contact;
2, double clamp phase meter measurement is not a good jaw or jaw oil is not wiped;
3, double clamp phase meter pliers failure;
4, double clamp phase meter battery voltage is insufficient.