High voltage phase sequencer ensures stable performance in field electrical work

High voltage phase sequencer ensures stable performance in field electrical work

　　High voltage phase sequencerBy using imported integrated circuits and innovative display methods, it can detect voltages below 500V (including 100V and 380V), and with corresponding insulation rods, it can detect various high voltage levels above 6KV, and whether the three-phase phase sequence is in (A, B, C) phase sequence. It has the characteristics of small size, light weight, easy use, and convenient portability. High voltage phase sequencers are widely used in substations, power plants, industrial and mining enterprises, scientific research departments, laboratories, testing stations, electrical maintenance departments for voltage phase sequence testing and field electrical operations.

1、 Basic principle of high-voltage phase sequencer:

Three voltage signals of different phases are converted into weak voltage signals through attenuation resistors or attenuation resistors in insulating rods and enter this instrument,High voltage phase sequencerThe internal digital integrated circuit automatically locks the voltage signal in a time-sharing manner, and then the internal recognition circuit of the instrument automatically recognizes whether the measured signal is in phase and drives the display circuit to display the corresponding light.

2、 High voltage phase sequencer product features:

When the instrument is in use, red light movement represents forward phase, and green light movement represents reverse phase.

2. Can be used for low voltage; Combined with insulation tubes, it can be used for high voltages above 1KV.

3. The instrument is equipped with an automatic power switch inside, which automatically turns on the power when in use and turns off when not in use, making it convenient and energy-saving.

Attention: 1. During high voltage use, due to the high input impedance of the instrument, there may be induced AC signals entering the instrument without connecting AC signals, causing the corresponding phase indicator light to light up. This is a normal phenomenon, not a fault, and does not affect normal use.

3. During operation, the human body must not come into contact with instruments, connecting wires, and grounding wires, and a safe distance must be maintained.

2. Used for 1KV-10KV voltage: Connect the connecting wire and grounding wire, and input the high-voltage power from the top of the insulation tube to distinguish the phase sequence.

4﹑High voltage phase sequencerThe testing operation should be carried out carefully in accordance with this exception, and the unit's regulations and systems should also be strictly followed. And strictly follow the safety work regulations (electrical part of power plant substation) DL408-91 for use, storage, and testing.