The non-stop operation technology of the 10 kV distribution network of the South Grid has reached the international level

Recently, experts from the National Electrified Operation Standardization Technical Committee, State Grid and South Grid appraised the results of the key scientific and technological project of China Southern Power Grid Co.
, Ltd.
"Research on Key Technologies of 10 kV Distribution Network Uninterrupted Operation", and pointed out that the project is innovative, has significant economic and social benefits, expands the application scope and depth of 10 kV distribution network uninterrupted operation technology, and the results have good prospects for promotion and application, and its technical level has reached the international advanced level
.

It is reported that in order to improve the reliability of power supply, the live operation branch of Yunnan Power Grid Co.
, Ltd.
began to study the comprehensive application of live operation and bypass operation technology in 2012, and the operation methods, technologies and equipment for overhauling the power outage of 10 kV distribution network equipment without interrupting the
user's power supply.
The project mainly conducts research from the two aspects of electrified operation and uninterrupted power transfer of high and low voltage load in the high-altitude area of the 10 kV distribution network, so as to provide technical support
for the uninterrupted operation of the distribution network and improve the reliability of power supply.
The project has applied for 8 invention patents, 1 has been authorized, 8 utility model patents have been authorized, and 1 software copyright has been authorized; published 11 papers; Participated in the preparation of 1 national standard and 7 enterprise standards of the South Net; Preparation of 1 textbook
.

The relevant person in charge of Yunnan Power Grid Company introduced that at present, the live operation branch has applied the results to Kunming, Lijiang, Diqing, Yuxi and other power supply bureaus, and realized multiple on-site applications and demonstrations at different altitudes, different electrical connection methods, different environmental and climatic conditions, and its feasibility and suitability are strong
。 In 2015, Yunnan Power Grid Company carried out a total of 9,660 live maintenance operations of the distribution network, reducing the number of households in power outages by 1.
536 million and the power supply by 62.
9401 million kWh, and the annual distribution network live operation increased the reliability rate of power supply by 0.
08 percentage points and reduced the average power outage time of users by 6.
62 hours
.

This year, Yunnan Power Grid Company plans to promote and apply
the key technical achievements of 10 kV distribution network non-stop operation in the province.
Internally, actively expand the scope of non-blackout operation of the distribution network, and add corresponding technical support to improve the reliability of power supply; Externally, ensure the continuous power supply of customers and better improve power services
.