On March 22, 2014, a company in Yiwu, Jiangxi Province (referred to as K Company) became the first user of the Zhengneng ES2010 double-clamp phase voltammeter developed by Zhengneng Electronics in February this year.To this end, Zhengneng Electronics specially sent two technicians to Yiwu, Jiangxi Province to conduct professional guidance on testing the low-voltage room distribution box of K company technicians. The following is the scene picture of this test:

 

 

Low-voltage power distribution cabinet to be tested in the power distribution room:
 

  
 

Instrument box with the instrument:
 

 

After the technician estimates the voltage value of the power distribution cabinet, turn the rotary switch to 600V and connect the line:
 

 

Press the POWER button to turn on the power and measured the voltage is 402V.
 

 

Rotate the rotary switch to the current or voltage range of U1 or U2, press the Hz key, and the measured frequency is 50HZ:
 

 

Press the CT1 current clamp into the I1 port and rotate the rotary button to the I1U2 position. At this time, the phase of I1 and U2 is measured, and the phase angle is 179.1 degrees:
 

 

Remove the test line and prepare to measure the current value;
 

 

To estimate the current value, turn the rotary switch to 2A and measured the current is 1.26A:
 

 

Press POWER to shut down and the measurement is completed:
 

 

Attached：

Product Introduction：ES2010 double-clamp digital phase voltammeter
Product Operation Method：How to use ES2010 to measure the voltage, current, phase angle frequency and other parameters of the low voltage distribution cabinet?