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Views: 0 Author: Site Editor Publish Time: 2022-06-01 Origin: Site
In production and life, transformers have brought many important influences on production and life. The protection instructions of liquid-immersed transformers and the knowledge of protection devices can better extend the service life of transformers. So what are the instructions for the use of liquid immersed transformers and protective equipment?
This is the content list:
l Instructions for use
l Protection equipment
1. Liquid-immersed transformer connection and connection group.
2. There are two different phase angles for the voltage of the domestic liquid-immersed transformer power transmission system. When YN, yn0, and yn0 must connect the three-phase five-column liquid immersion transformer, there must be a fourth winding angular connection in the transformer, and its front end is not led out. The high-voltage windings used in domestic liquid-immersed transformers are generally combined into a Y connection, and the connection of medium-voltage windings and low-voltage windings depends on the system conditions. The so-called transformer system condition refers to the relationship between the voltage phasor of the high voltage transmission system and the voltage phasor of the medium voltage or low voltage transmission system.
The liquid-immersed transformer microcomputer protection device consists of a highly integrated, bus-free chip single-chip microcomputer, high-precision current and voltage transformers, high-insulation-strength outlet intermediate relays, high-reliability switching power supply modules, and other components. The liquid-immersed transformer microcomputer protection device is mainly used in power plants, substations, and substations with voltage levels of 110KV and below. The transformer can also be used for the protection and monitoring of system voltage and current of 70V-220V voltage level.
The liquid-immersed transformer differential protection device is mainly used to protect transformer equipment. The transformer differential protection device shall be equipped with differential quick-break protection and compound ratio differential protection, with or without second harmonic braking. It can be used at most for a three-side differential current input (three-turn transformer). The liquid-immersed transformer has a complete and powerful acquisition function for the voltage and current analog and switch values of the primary equipment, and through the reasonable configuration of the transformer, three the differential protection of the main transformer of the circuit, the differential protection of the main transformer of the secondary circuit, and the change of the power distribution of the secondary circuit. Dynamic protection, non-live protection, and other protection and measurement and control functions.
Zhejiang Shuntong Electric Co., Ltd. is a professional manufacturing enterprise integrating development, production, sales, and service. The main products are dry-type transformers, oil-immersed transformers, special transformers, box-type substations, cable junction boxes, high and low voltage complete sets of equipment, voltage regulating equipment, etc. This series of products are mainly suitable for commercial buildings, high-rise buildings, airports, schools, industrial and mining enterprises, power plants, oil platforms, subways and tunnels, and other important places with special fire protection requirements. The above is about the instructions for use of the liquid-immersed transformer and the related content of the protection equipment. If you are interested in a liquid-immersed transformer, please contact us. Our website is www.sntoom.com. We look forward to your visit and hope to cooperate with you.
