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Comparison of advantages and disadvantages between AC withstand voltage test and DC withstand voltage test

Advantages and disadvantages of AC test and DC testPlease confirm with the safety regulation unit designated by the product under test what voltage th …

Release time：2022-02-14

Commissioning of 100kV/10kVA intelligent partial discharge withstand voltage equipment

The customer is a manufacturer of switch cabinet products of 24kV and below, and the voltage withstand equipment purchased is 100kV/10kVA. The power f …

Release time：2022-01-14

China Southern Power Grid: Digital Power Grid promotes the construction of a new power system with new energy as the main body

Polaris power transmission and distribution network: On April 24, China Southern Power Grid Corporation released the White Paper on Digital Power Grid...

Release time：2021-08-23

The intelligent robot of China Southern Power Grid Guangdong Company began to "work" in the high-voltage substation

China Southern Power Grid Guangdong Company recently announced that its intelligent patrol robot developed by it was put into use, which is expected t...

Release time：2021-08-23

The Beidou operation service platform independently developed by China Southern Power Grid will be launched at the end of June

Polaris power transmission and distribution network: Recently, the "Fourteenth Five-Year Plan" (hereinafter referred to as the "Plan&qu...

Release time：2021-08-23

What is the difference between American cable branch box and European cable branch box

American type cable branch box is a kind of cable engineering equipment widely used in the power distribution network system in North America. It is m...

Release time：2021-08-23

Introduction to grounding wire of cable branch box

The conductor connectors in the branch box adopt crimping method, which is convenient for installation and flexible for incoming and outgoing lines. T...

Release time：2021-08-23

Cable branch box - cable span mass body to create island "power accelerator

"One, two, three, get up!" Ten pairs of hands with blue tendons tightened the chain block along the cable path, and tried their best to pry ...

Release time：2021-08-23

The insulation coordination principle and verification of low-voltage switchgear

As far as the actual situation of our country is concerned, the insulation coordination of equipment is still a big problem in high and low voltage el...

Release time：2021-08-23

Insulation coordination of low-voltage switchgear

AC or DC test can be used to replace the impulse voltage test for low-voltage switchgear, but this test method is more severe than the impulse voltage...

Release time：2021-08-23

220KV Dongliang substation of Baotou Power Supply Bureau started power transmission

"110 kV one and two buses and all outgoing lines, 10 kV all outgoing lines and 9012 switches were switched to cold standby." At 21:59 on Nov...

Release time：2021-04-23

The first UHV substation expansion project in Shandong Province has been put into operation smoothly

This expansion project of Quancheng Station includes two 1000 kV transformers and six 110 kV capacitor bays. The rated capacity of a single transforme...

Release time：2021-02-14

Feidian electric energy provides more professional testing equipment and technical services for power transformer, transformer, switch, high-voltage cable, power capacitor, bushing, insulator, lightning arrester, motor and other manufacturers

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