DAHU electrical specializes in the production of 0.5-40.5kv transformers. It has cooperated with many national power bureaus for 10 years and exported to foreign markets. If there is any quality problem within the warranty period, it can be replaced free of charge.
Product use and characteristics:
It is suitable for power system with rated frequency of 50Hz or 60Hz and rated voltage of 35kV, used for power measurement, voltage monitoring and relay protection.
The transformers are usually made of epoxy resin.
These transformers are usually cast with epoxy resin, which is resistant to pollution and humidity, and suitable for outdoor environments, including tropical areas.
It is suitable for outdoor environments, including tropical areas.
Technical parameters:
Secondary rated output: 0.2 level 60VA; 0.5 level 150VA.
Rated insulation level: 40.5VA; 0.5VA.
Rated insulation level: 40.5/95/185kV.
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Structure and features:
Pillar-type structure, epoxy resin fully closed casting, no special maintenance, only need to periodically remove surface dirt
The structure of the column is fully enclosed by epoxy resin.
Installation of terminal box at secondary outlet terminal, safe and reliable.
Safety.
Safety performance:
Adoption of explosion-proof design and multi-layer protection measures can ensure highly reliable safety performance in harsh environments.
Safety performance.
Insulation requirements:
Primary winding lightning impact (internal and external insulation) full-wave withstand voltage (peak) is 200kV, lightning impact cut-off withstand voltage (peak) is 230kV.
The primary winding end to the secondary winding is 230kV (peak).
Primary winding end to secondary winding and ground frequency withstand voltage is 3kV, 1min.
The primary winding end to the secondary winding and ground frequency withstand voltage is 3kV, 1min.
Short-circuit withstand capability:
When the transformer is excited at the rated voltage, it should be able to withstand the mechanical and thermal effects of an external short circuit for 1 second without damage.
Short-circuit withstand capability.
Installation and Maintenance:
The mounting base and the product's mounting base plate are fastened firmly with fasteners and shall not be loosened.
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Acceptance includes checking whether the product model and specification are in line with the contract, whether the random documents are complete, whether the appearance of the product is damaged during transportation, and the electrical performance test.
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This information provides a detailed description of the 35kV single-phase residual winding cast insulated voltage transformer, including its use, technical parameters, structural features, safety performance, insulation requirements, short-circuit withstand capability, and installation and maintenance guidelines.
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