630A-1250A /12kv Indoor Solid Fully Insulated Enclosedring Net Switchgear

• Customization: Available
• Certification: ISO9001
• Shell Material: Steel Plate
• Model NO.: GTXN12/630-1250
• Installation: Fixed
• Structure: Cabinet
• Current: AC
• Rated Voltage: 12kv
• Wideth: 500mm
• Frequency Withstand Voltage: 42kv
• Length: 1800mm
• Transport Package: Wooden
• Specification: 630A-1250A
• Trademark: QIUPU
• Origin: Cn
• HS Code: 8538900000
• Production Capacity: 500000PCS/Year

Product Description

                   The SSR-12(S) ring network switching equipment is mainly used for the central and radial distribution lines and outlets of the distribution systems of 24KV and below. It is widely used for cable separation, separation and multi-power point contact. As well as underground cable and overhead line mixing network access control and connection to achieve power supply and radiation power supply. It can be equipped with the following protection equipment;
Transformer protection through fuse feed(R function)
Transformer protection by vacuum circuit breaker(L function).
Due to its compact size, rich functionality, and ease of installation and expansion, the cabinet has become a universal switchgear for many secondary distribution applications, such as: Western Microloop cabinets, public distribution, industry, infrastructure or renewable energy.
              The interlock of high voltage switchgear is an important measure to ensure the safe operation of power network, ensure the safety of equipment and person and prevent misoperation. This is also clearly stipulated in GB3906, 3-35kV AC Metal Closed Switch Equipment. Generally describe the interlock as: prevent misdivision, Misfit circuit breaker: prevent load separation, close isolation switch; Prevent the connection line(ground switch): prevent the connection line(switch) closed circuit breaker, load switch: prevent the accidental electrical interval. The content of the above five items to prevent electrical misoperation is referred to as "five precautions". "Five-guard" devices can be generally divided into three categories: mechanical, electrical and integrated. At present, there are many types of high voltage switchgear in the market, most of which have a more perfect interlock mode. However, there are still a lot of high voltage switchgear interlocks, especially mechanical interlocks are not perfect, can not fully meet the "five defense" requirements. For this reason, this paper deals with the KYN28-12 type metal closed armored removable switching equipment which is widely used in power system.

Item			Technical data
Rated voltage (KV)			3.6		7.2		12			24		40.5
Rated frequency(Hz)			50
Insulator(capacity)	insulating	Frequency withstand voltage 5 min (KV)	25	32		42		68			100
		Frequency withstand voltage 1 min (V)	2000
		Lighting impulse withstand voltage (KV)	40	60		75			125				185
		Local discharge (pc)	≤10
	Dispute bend (N)		≥1000