MOEORW-4510 AC/DC On-load Tap Changer Tester Send email to us

This instrument has two different test methods: AC method and DC method. The DC test method is used in accordance with the requirements of "DLT846.8-2004 General Technical Conditions for High Voltage Test Equipment", using three-way high-precision DC constant current circuits to accurately measure DC characteristic parameters such as transition time, transition resistance and transition waveform of the on-load tap changer; the AC test method is based on the relevant provisions of "DLT265-2012 Transformer On-load Switch Field Test Guidelines", which can synchronously record the three-phase current waveform (power frequency) during the switching process of the on-load tap changer, which can reflect the working conditions of the on-load tap changer when it is actually in action to the greatest extent, and can measure important parameters such as three-phase synchronization and bridging time by combining software automatic analysis and manual auxiliary judgment.

1. Input power

200V~240VAC/10A, 50Hz/60Hz±1%

2. Output power

2.1 AC output power

Three-phase four-wire power supply: line voltage 8V~800V

Output power frequency: 50Hz Accuracy: ±0.05%

Output peak power: 1500VA

2.2 DC output power

Three-phase output constant current source: 1A or 0.2A per channel, accuracy 1%

Constant current source port voltage: not more than 22V

3. Related technical parameters

(1) Transition resistance measurement range: 0.1~40Ω, measurement accuracy: <5%;

(2) Time measurement: range 1~600ms, accuracy 0.5%;

(3) Sampling accuracy: 16Bit;

(4) Sampling rate: 50K/100K/200K optional;

(5) Storage depth: FIFO structure

(6) Voltage test: 0 to 800V;

(7) Current test: 0 to 1A;

(8) Test result data storage time: 600ms;

(9) Resolution: 0.01ms;

(10) Accuracy: ±(2% reading + 0.02ms);

(11) Compliance with standards: DL/T 265-2012 "Guidelines for Field Test of On-load Tap Changers for Transformers";

(12) Software support: windows2000/windowsXP/windows7/windows8;

(13) Power supply voltage: AC220V±10%;

(14) Ambient temperature: Working -10℃～+50℃ Storage -25℃～+60℃;

(15) Relative humidity: not more than 80%.