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The practical energy-saving application of dry-type half-core shunt reactor


2021-02-04

Through the comparison of the laboratory test results of the dry-type iron core shunt reactor (BKGL-10000/35) and the dry-type air-core shunt reactor (BKGKL-10000/35) of the same capacity, combined with the use of BKGL in the Beijiao Substation of Xi’an High Voltage Power Supply Bureau -The actual conditions of 10000/35 dry-type half-core shunt reactors are tested and counted on the spot, focusing on the analysis of energy-saving effects, economic benefits and social benefits, and demonstration and promotion to users.

1. Total project investment

    The total investment of equipment (three sets in a group) is 900,000 yuan.

2. Applicable objects

    Dry-type half-core shunt reactor is a kind of high-efficiency energy-saving equipment installed in the transmission system to compensate the capacitive current of the transmission line, limit the system voltage rise and operating overvoltage, and maintain the system voltage stability. It is suitable for various voltage levels. Transmission and distribution substation.

3. Energy-saving benefits

    For the BKGL-10000/35 reactor used in the expansion of Xi’an Beijiao Substation, the actual investment for each equipment is 300,000 yuan/unit, which is an additional 40,000 yuan/unit with the same capacity BKGKL-10000/35 (260,000/unit). station. After the dry-type half-core shunt reactor is put into operation, it can save 145,000 kWh of electricity annually. Based on the city electricity price of 0.5 yuan/kWh, it can generate an annual benefit of 72,500 yuan and reduce CO2 emissions by about 149.94 tons.

4. Payback period

    The payback period of the project investment is 20 months.

5. Case source enterprise

    North Suburb Substation of Xi'an High Voltage Power Supply Bureau.

6. Monitoring unit

    Xi'an Energy Conservation Monitoring Center.

7. Overview of research case analysis

    When the North Suburb Substation of Xi’an High Voltage Power Supply Bureau was expanded in 2001, a group of three BKGL-10000/35 dry-type half-core shunt reactors were installed on the 330/110kV transmission line. They were put into operation on February 1, 2002. So far, it has been running well, and all technical indicators have met the requirements for use.

    This case analysis is based on the technical parameters of the same capacity BKGKL-10000/35W dry-type air-core shunt reactor produced by the product technology owner Xi'an Zhongyang Electric Co., Ltd., and conducts a comparative analysis and research. Because the dry-type air-core shunt reactor produced by this company is at the leading level in the same industry, and the dry-type half-core shunt reactor is a new technology patented product, the country has not yet formulated its loss standard. This time, the same capacity iron core and air core are used. The comparison, research and analysis of core shunt reactors are of strong scientific nature.

Through the comparison of the laboratory test results of the dry-type iron core shunt reactor (BKGL-10000/35) and the dry-type air-core shunt reactor (BKGKL-10000/35) of the same capacity, combined with the use of BKGL in the Beijiao Substation of Xi’an High Voltage Power Supply Bureau -The actual conditions of 10000/35 dry-type half-core shunt reactors are tested and counted on the spot, focusing on the analysis of energy-saving effects, economic benefits and social benefits, and demonstration and promotion to users.

1. Total project investment

    The total investment of equipment (three sets in a group) is 900,000 yuan.

2. Applicable objects

    Dry-type half-core shunt reactor is a kind of high-efficiency energy-saving equipment installed in the transmission system to compensate the capacitive current of the transmission line, limit the system voltage rise and operating overvoltage, and maintain the system voltage stability. It is suitable for various voltage levels. Transmission and distribution substation.

3. Energy-saving benefits

    For the BKGL-10000/35 reactor used in the expansion of Xi’an Beijiao Substation, the actual investment for each equipment is 300,000 yuan/unit, which is an additional 40,000 yuan/unit with the same capacity BKGKL-10000/35 (260,000/unit). station. After the dry-type half-core shunt reactor is put into operation, it can save 145,000 kWh of electricity annually. Based on the city electricity price of 0.5 yuan/kWh, it can generate an annual benefit of 72,500 yuan and reduce CO2 emissions by about 149.94 tons.

4. Payback period

    The payback period of the project investment is 20 months.

5. Case source enterprise

    North Suburb Substation of Xi'an High Voltage Power Supply Bureau.

6. Monitoring unit

    Xi'an Energy Conservation Monitoring Center.

7. Overview of research case analysis

    When the North Suburb Substation of Xi’an High Voltage Power Supply Bureau was expanded in 2001, a group of three BKGL-10000/35 dry-type half-core shunt reactors were installed on the 330/110kV transmission line. They were put into operation on February 1, 2002. So far, it has been running well, and all technical indicators have met the requirements for use.

    This case analysis is based on the technical parameters of the same capacity BKGKL-10000/35W dry-type air-core shunt reactor produced by the product technology owner Xi'an Zhongyang Electric Co., Ltd., and conducts a comparative analysis and research. Because the dry-type air-core shunt reactor produced by this company is at the leading level in the same industry, and the dry-type half-core shunt reactor is a new technology patented product, the country has not yet formulated its loss standard. This time, the same capacity iron core and air core are used. The comparison, research and analysis of core shunt reactors are of strong scientific nature.