Electric energy meter inspection device GDW-5000A

GDW-5000A Hand-held Three Phase Electric Power Inspector General Information GDW-5000A Hand-held Three Phase Electric Power Inspector is used to measure error of electric energy, voltage, current, active power, reactive power, phase, frequency, power factor at the same time, display vector diagram and check results. Besides, it measures 2nd~51th harmonics of three-phase voltage, current timely and better know the power quality. Equipped with 5A, 100A, 500A, 1000A clamp meter, it can directly measure the transformer ratio of low voltage CT. It is convenient to find out faults such as circuit disconnection, poor contact, inter-turn short circuit in CT and whether the CT nameplate ratio is consistent with the actual ratio of CT. Features With 32 bit high speed digital signal processor. TI's 32-bit high speed 120MHz DSP and AD company's high-performance 6-channel 16-bit AD are used to develop a multi-functional and wide-range digital multiplier. Floating point arithmetic is adopted to ensure the accuracy of calculation. Wiring simulation function Under the condition that the instrument does not access to voltage and current signals, all kinds of wiring in the field can be simulated in the office and corresponding wiring results can be obtained. This function can be used as a tool for line checking training to improve the skills of field workers. Error self-check of 5A clamp Current signals of 5A and 0.5A generated in the instrument are added to the 5A and 100A clamps to measure the errors of clamps meter.