Issues on Maintenance and Test Procedures for Electrical Equipment Status of HVDC Transmission Systems (Trial)

In order to realize the goal of building a “one strong and three excellent” modern company, improve the operation and management level of the cross-region power grid DC transmission system, improve the reliability and availability index of the DC system, reduce the operation and maintenance production costs, the relevant units of the State Grid Corporation Construction and Operation Department are deepening. On the basis of the state maintenance research, the “Provisions and Test Procedures for Electrical Equipment Status of HVDC Transmission Systems (Trial)” (hereinafter referred to as “Procedures”) were compiled and officially issued on April 2, since May 1, 2007. Starting from the cross-region power grid DC transmission system trial.

The Regulations stipulate the project, cycle, method and technical requirements for on-site maintenance and test of AC and DC high voltage electrical equipment and transmission lines in HVDC transmission systems. "Procedures" include scope, normative references, terms and definitions, general, converter transformers, smoothing reactors, power transformers and shunt reactors, SF6 gas insulated power transformers, high voltage bushings, AC/DC filters and shunt capacitors Group, neutral bus capacitors, power line carrier devices and noise filters, metal oxide surge arresters, disconnectors and earthing switches, DC circuit breakers, SF6 AC circuit breakers and GIS, AC current transformers, DC current transformers (zero magnetic) Type), photoelectric current transformer, capacitive voltage transformer, electromagnetic voltage transformer, DC voltage divider, rubber insulated cable, paper insulated cable, DC grounding pole and line, converter station grounding network, commutation There are 29 items of external insulation and insulators, transmission lines, thyristor converter valves, insulating oil test and SF6 gas analysis.
The authenticity of this information has not been confirmed by the international electrical network, for your reference only.
From: Power News

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