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Different frequency resonance in power system of series resonance

2022-02-10 12:03:15

Series resonances of different frequencies often occur in power systems, and their occurrences are actually over the inductance value Xm of the integrated inductance Xm of the capacitance Xco of the capacitance distributed between the wires and the ground in the power system and the parallel operation of the voltage transformer. The following is the performance of several different frequencies of resonance.

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Checking and judging method of transformer voltage regulating switch fault

2022-02-10 12:01:45

According to statistics, the faults of the on-load pressure regulating switch mainly include two aspects: one is the failure of the driving mechanism of the pressure regulating switch, which mainly includes the linkage of the electric mechanism, water in the case, oil leakage of the gear box, and insufficient spring energy storage.

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Application of DC Resistance Tester in Practice

2022-02-10 12:00:08

The DC resistance test is an indispensable test item after the transformer is handed over, overhauled and the tap switch is changed. Therefore, it is very important to use a DC resistance tester to test the DC resistance of the transformer.

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Hazard of overload operation of high voltage test transformer

2022-02-10 11:59:38

It's summer now, and summer is the peak period of electricity consumption. Because the weather is too hot, everyone does not want to go out. Air-conditioning is done at home. This is to keep the high-voltage test transformer in overload operation for a long time. Long-term overload operation is very harmful to the transformer, so do you know what is the hazard to the high-voltage test transformer in the long-term overload operation? If you don’t know, let’s take a look at the high-voltage test with Xiaobian mall The danger of long-term overload operation of the transformer.

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Analysis of common failures of high voltage test transformers

2022-02-10 11:58:55

High-voltage test transformers will fail in normal use, but small faults such as short circuits can actually be avoided. Now just like everyone introduces the common faults and solutions of high-voltage test transformers in detail.

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China Energy Strategy Forum of the 16th Science Expo 2013 was held in Beijing

2022-02-10 11:58:01

From May 21 to 22, 2013, the China Energy Strategy Forum was successfully held as an important part of the 16th International Science and Technology Expo in Beijing Jingxi Hotel.

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Power year-end inventory: weaving a strong and safe green grid in 2012

2022-02-10 11:56:58

2012 is a crucial year for the "12th Five-Year" period to link the past and the future. It is a year when the "12th Five-Year" plan is finalized and related construction is fully launched.

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Technical specifications for UHV DC connected to UHV AC grid output equipment

2022-02-10 11:56:26

On November 7, the State Grid Corporation of China issued a technical specification for the development of key equipment for UHV DC access UHV AC grid transmission projects in Beijing. Zheng Baosen, deputy general manager and party member of State Grid Corporation, attended the press conference and delivered a speech.

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Power equipment: structural growth trend is obvious

2022-02-10 11:55:52

Recently, all six batches of centralized bidding by State Grid Corporation in 2012 have ended. We have detailed statistics on the annual bidding status of various goods. The main equipment transformers and switches and secondary equipment have maintained a small growth, although the growth rate is slower than in previous years.

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Research and analysis on the development of the power industry in the first half of 2012

2022-02-10 11:54:44

The golden decade of the coal industry has started a boom cycle for the power industry. The power industry, which has been depressed by coal prices for a long time, may fight a turnaround this year. The coal price, which has fallen since the end of last year, has not yet fallen to its end.

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Phone：0086-15231260588
Tel：0086-312-3172660 / 3188565
E-mail：bdweisheng@126.com

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