Instructions for Use of Wireless High Voltage Nuclear Phase Analyzer

Safety precautions for wireless high voltage nuclear phase analyzer

1. During the field test, the operator shall operate according to the relevant requirements of power safety work regulations.

2. The voltage grade of insulating rod equipped with wireless high voltage nuclear phase analyzer is ≤ 220kV.

2、 Description of on-site nuclear phase analyzer:

① Firstly, hang the X and Y collectors on the same high-voltage line respectively, and the host display screen shall show that X and y are in phase, with a phase difference of 355 °005 °

② During the nuclear phase of high-voltage line, the X and Y collectors shall be arranged according to the following methods: AA 'in-phase 355 ° - 005 °: ab' different phase 120 ° or 240 °, BB 'in-phase 355 ° - 005 °, BC' different phase 120 ° or 240 °, CC 'in-phase 355 ° - 005 °.

â‘¢ If you want to get the * value, you should put one collector on one acquisition point of the high-voltage line, and then move the other collector back and forth around the other acquisition point of the high-voltage line, or adjust X and y to find out the phase angle of Zui *.

④ In case of nuclear phase, the test data of AA ', ab', BB ', BC', CC 'show different phases, because the wiring groups of the two groups of power supply lines are different, there may be a phase difference of 30 ° or 60 °. The following describes the measurement standard in this case (taking 30 ° phase difference as an example): the test method is the same as ① and ②. The measured results shall be: AA 'different phase 30 °, ab' different phase 120 ° or 240 °, BB 'different phase 30 °, BC' different phase 120 ° or 240 °, CC 'different phase 30 ° (Note: 120 ° and 240 ° only represent positive phase sequence or reverse phase sequence)

⑤ When the wireless high-voltage nuclear phase meter measures ≥ 10kV, X and y can be directly placed on the conductor or insulating skin for phase verification at the same time

⑥ When the nuclear phase is ≥ 66kV, X and Y collectors can adopt contact or non-contact method to nuclear phase. (for example, when measuring 110kV and 220kV, place the X and Y collectors 300 mm to 1000 mm below the high-voltage line. When measuring 500kV, place the X and Y collectors 1000 mm to 2000 mm below the high-voltage line, and measure the left and right allowable deviation of 300 mm)

⑦ Measuring phase sequence: assuming that a line is phase a, place x on phase A and Y on another phase. If 120 ° is displayed, it indicates that it is in-phase sequence, which is "B"; if 240 ° is displayed, it is in reverse phase sequence, which is "C".

Instructions for Use of Wireless High Voltage Nuclear Phase Analyzer 1

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