Kilo Watt-Hour Meter -Single-Phase Meters Calibration Guide

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    Compensation torque adjustment: add the rated bai voltage to the voltage line of the energy meter, lighten the du load adjustment device, make the turntable out of the anti-potential and resist the action, and just turn it forward, tilt the friction torque and voltage iron core in the meter and bearing 3. The latent moment generated by improper manufacturing and assembly is compensated.

    Full soft adjustment is based on the voltage and current loop, adding the rated voltage and the calibration current, and adjusting the phase shifter to maximize the power display value, that is, under the full load condition of Cos0-10, adjust the full load device and change the turntable speed.

    Light load adjustment When COS0=10, add the rated voltage and 10% of the calibration current to adjust the light load calibration equipment of the energy meter so that the error is within the allowable range.

    Under the conditions of rated voltage and calibrated current, re-check whether COs0 is 10, move the phase device, and when cos0=0.5, adjust the phase angle device to make the difference between the energy meter and the difference at full load equal.

    When cutting off the current loop, the repaired or newly installed energy meter should be in accordance with the specified voltage of 80% and 100%. For the test, 110% of the rated voltage of the two later energy meters will be tested to prevent Dive needle is far high anti-submarine hook.

    Under the influence of the anti-potential moment, the turntable can be guaranteed to be in the initial state, which can be judged that there is no voltage creeping problem. After the relevant creeping situation is eliminated, the rated voltage can be applied, and the range of 08-09 times Starting current.

    When the cosO value is equal to 10, the turntable can maintain normal operation with the help of the maximum anti-potential torque. If the operation is not normal, it can be solved by changing the shape of the anti-submarine.

    National calibration error: When the maximum rated voltage and current are equal to 1.0 at the cosO value, the turntable can maintain normal operation with the help of the maximum anti-potential torque. If the operation is not normal, it can be solved by changing the shape of the anti-submarine.

    Calibration error: under the condition of maximum rated voltage and current, the cos0 value is equal to 1.0 and the l5rain power-on preheating is performed. Under the same power condition, arrange the load power drop curtain, combine with the error measured by the AC energy meter, and re-check and adjust the energy meter with deviation.

     

    Zhejiang Tepsung Electric Meter Co., Ltd . is a professional China manufacturer and supplier of   three phase electricity meter   and   kilo watt-hour meter   . We ensure the quality of our products through strict testing procedures, and have won wide acclaim at home and abroad. More than 40 model products have obtained international certificates and type test reports: ISO9001, KEMA, CE, STS certificates and more domestic certificates. Order for one hundred information: https://www.yhddb.com/