State Grid Jiangxi Power Company 500kV Wenshan station SF6 density relay automatic calibration assembly connector Alstom equipment installation

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应用案例

SF6安全保障专家

专注于SF6气体检测的专业化

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500kV Wenshan Station SF6 density relay automatic

There are 65 circuit breakers in 25 groups such as 5033 circuit breakers of 500kV Rowan II lineSF6 density relays automatically calibrate assembly fittingsAnd rain cover overhaul three-way valve, rain cover bidding documents technical specification special partone
General Rules:
one This equipment is suitable for 500KV, 220kV substation 500KV, 220kV, 35kV circuit breakerSF6 density relays automatically calibrate assembly fittingsThe main technical function, structure, performance, installation, test and acceptance of the technical requirements.

2. The relay is connected with the switchSF6 density relays automatically calibrate assembly fittings1. The assembly joint provided is required to have an automatic calibration function, which can completely prevent misoperation. Without additional opening and closing operation of the airway, the density relay can be verified, and there is no need to set the opening and closing mark, which can fully ensure the sealing of SF6 electrical equipment and ensure the safety and accuracy of operation.

3. The inflatable port, micro-water test port, calibration port and gas shutoff valve port of the provided SF6 gas density relay automatic calibration assembly joint are the same port, that is, no additional inflatable port and micro-water test port should be set. The SF6 electrical switch can be charged and water tested in the same position or the SF6 gas path of SF6 electrical equipment can be turned off to verify the density relay, which minimizes the leakage point and ensures the sealing.

2018 overhaul of rain cover for three-way valves and density relays, including main equipment, spare parts, technical services (including training), etc. The tenderer has the right to adjust the quantity of hardware within the scope of supply.

The equipment of this tender is mainly used for on-site verification of rain cover installation of three-way valves and density relays. The quantity of equipment purchased is as follows:

Serial number	unit	500kV Rowan II line 5033 circuit breakers and other 25 groups of circuit breakers check three-way valve and rain cover overhaul project three-way valve, rain cover
one	SF6 density relay verifies three-way valve and rain cover	65 sets (suitable for LTB245E1, LTB245E1-3P, 3AP1FI, 3AP1-FG/72.5, GL317X, GL317-550 circuit breakers)

4, the assembly joint provided has the following characteristics:

Provided in 4.1SF6 density relays automatically calibrate assembly fittingsThe inflation port, micro-water test port, calibration port and gas shutoff valve port are the same port, that is, do not set additional inflation interface, micro-water test port, you can fill the SF6 electrical switch and micro-water test or turn off SF6 electrical equipment SF6 gas path to verify the density relay in the same position, to minimize the leakage point.

4.2 SF6 density relays automatically calibrate assembly fittingsIt can completely prevent misoperation, because there is no need for additional opening and closing operation of the airway, it can realize the verification of the density relay, and there is no need to set the opening and closing signs, which can fully ensure the sealing and operation safety of SF6 electrical equipment.

4.3 SF6 density relays automatically calibrate assembly fittingsAll use helium mass spectrometer leak detection to ensure sealing.

4.4 SF6 density relays automatically calibrate assembly fittingsMultiple seals to ensure safety.

5. Overview of functional requirements

The provided SF6 density relay automatic calibration assembly connector enables easy calibration or replacement of the automatic SF6 gas density relay without disassembly, which brings convenience to the operation of maintenance personnel. Protect sealing surface and sealing ring, does not affect the sealing performance of SF6 electrical equipment, to ensure the safe operation of SF6 electrical equipment. The sealing material is made of EPDM rubber with high performance, wide temperature resistance and good sealing. Assembly joints must have multiple seals to ensure safety. Complete seal ring with silicone grease for installation. The micro-water and air supplement port should be humanized, that is, it can be convenient to measure the micro-water of SF6 electrical equipment; It can easily replenish the SF6 electrical equipment.

The following is the situation of the work site: