110KV, 220KV discharge gap, transformer neutral point ground gap protection device

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R-type transformer neutral point gap protection device

1. Product Overview
It is the main voltage level of the power supply network. Because the voltage is very high, the neutral point is generally directly grounded. Due to the requirements for relay protection setting configuration and prevention of communication interference, etc. In order to limit the single-phase short-circuit current, some of the transformers use an ungrounded neutral point. In this operating mode, lightning strikes, single-phase grounding short-circuit faults, etc. will cause neutral point overvoltage, and most transformers are graded insulation. Therefore, overvoltage poses a great threat to the insulation of the neutral point, and protection must be set up. The device prevents accidents.
The R-type transformer neutral point gap protection device produced by our company strictly complies with/"Overvoltage Protection and Insulation Coordination of AC Electrical Devices", B. "Insulation Coordination of High-voltage Power Transmission and Transformation Equipment", "Prevention of Electric Power Production The design and manufacture are carried out in accordance with the relevant provisions of the national and industry standards such as the technical requirements for rod gaps in the tutorial material "Key Requirements for Major Accidents". Suitable for neutral point overvoltage protection of ungrounded transformers in effectively grounded systems.
This product is widely used in electric power, metallurgy, petrochemical, mining, construction, environmental protection and other fields.
2. Product Features
The R-type transformer neutral point gap protection device is a complete set of equipment that integrates electrical equipment such as isolation switches, zinc oxide arresters, discharge gaps, and current transformers. It has full functions. , small size, high reliability, easy installation and debugging, etc.
. R-type transformer neutral point gap protection device has two forms: rod gap and spherical gap.
. Arrester and isolation switch can be selected in any combination according to project needs. The operating mechanism of the isolating switch can be a manual or electric mechanism according to the engineering requirements.
. The gap discharge voltage is stable and the gap distance is easy to adjust.
. Use pure copper or high-strength stainless steel to finish the electrodes.
. The lifting ring is installed on the gap base, and the whole piece is transported and hoisted, making on-site installation quick and convenient.
. During on-site installation, the installation bracket can be made of seamless steel pipe, which has high strength and ensures the stability of the bracket.
3. Model Description