Introduction:
GH-6502 Large Grounding Grounding Resistance Tester In the power system, the grounding resistance test of the large ground network is mainly measured by the power frequency high current three-pole method. In order to prevent the power frequency interference generated during the operation of the power grid and improve the accuracy of the measurement results, the insulation preventive test procedure stipulates that the test current of the power frequency high current method shall not be less than 30 amps. As a result, there are many problems such as cumbersome test equipment, complicated test procedure, high tester's working intensity, long test time, etc. GH-6502 large-scale grounding resistance tester can measure substation ground network (4Ω), water and thermal power plant, microwave The station (10Ω) and the lightning rod (10Ω) are crowded; the new signal power supply is adopted, and the computer processing control and signal processing measures are adopted, which solves the anti-interference problem in the test process and simplifies the test operation process. The accuracy and accuracy of the test results are improved, and the labor intensity and test cost of the test personnel are greatly reduced.
nickname:
GH-6502 large grounding grid grounding resistance testerFeatures:
1. It adopts the output of the AC power supply with different frequency, which has strong anti-interference ability;2. The AC current output only needs 3A, so the instrument body is light in weight and small in size;
3. Reduce the requirement on the test wire diameter (only 1.5mm2), which effectively reduces the labor intensity;
4. The measurement results are displayed directly, no additional calculation is required;
5, large-screen LCD display, full Chinese fool machine menu operation, intuitive, simple and convenient operation
Technical Parameters:
1, instrument measurement range: 0 ~ 15Ω2, measurement accuracy: 3%
3. Measuring output current: AC<3A
4. Measurement line requirements: ≥Φ1.5mm2
5, power supply: AC220V/50HZ
6, instrument weight: 8kg
KNBL1-32 Residual Current Circuit Breaker With Over Load Protection
KNBL1-32 TWO FUNCTION : MCB AND RCCB FUNCTIONS
leakage breaker is suitable for the leakage protection of the line of AC 50/60Hz, rated voltage single phase 240V, rated current up to 63A. When there is human electricity shock or if the leakage current of the line exceeds the prescribed value, it will automatically cut off the power within 0.1s to protect human safety and prevent the accident due to the current leakage.
leakage breaker can protect against overload and short-circuit. It can be used to protect the line from being overloaded and short-circuited as wellas infrequent changeover of the line in normal situation. It complies with standard of IEC/EN61009-1 and GB16917.1.
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