ylzzcom永利总站线路检测(股份)有限公司-BinG百科

KYN28-12 Steel-Clad Movable-Type AC Metal-enclosed Switchgear (also called “Centrally Installed Switchgear”) is applicable in indoor three-phase 50/60Hz, rated voltage 3.6-12kV circuits for accepting and distributing electric energy in three-phase AC system and for auto opening and closing control, cutoff fault (including overload, short-circuit, overvoltage, and other faults) protection, monitoring and event logging for operating circuits. It is widely used in a variety of places including power generators, substations, metallurgical and chemical industry, rail transit projects, mining factories, living quarters, high-rise buildings, etc. The design and manufacturing of this Switchgear meet requirements in national standards GB3906 and GB/T 11022, power industry standards DL/T404 and DL/T593 and 18 Major Anti-Accident Measures of STATE GRID Corporation of China.

S/N	Item		Unit	parameters
1	Rated voltage		kV	3.6/7.2/12
2	Rated frequency		Hz	50
3	Main bus rated current		A	630/1250/1600/2000/2500/3150
4	Rated insulation level	Lightning impulse withstand voltage (peak)	kV	75		85
		1min power frequency withstand voltage (valid)	kV	Phase to phase and phase to ground		Disconnector fractures
				42		85
5	Rated short-circuit open current		kA	25	31.5	40
6	Rated short-circuit closing current (peak)		kA	63	80	100
7	Rated short-time withstand current (4 s)		kA	25	31.5	40
8	Rated peak withstand current		kA	63	80	100
9	IP Grade		Enclosure IP4X

1. Neat appearance, elegant and rich with industrial character.

2. Friendly human-machine and safe operation and installation interfaces.

3. Good exchangeability with handcart of same model with little maintenance.

4. Reasonable structure: circuit breaker chamber, bus chamber and cable chamber inside the switchgear have independently pressure release channel, contributing to safety and reliability.

5. Reliable interlocking, realizing closed-door operation.

6. Application of anti-swirl technology and loop resistance detection technology can effectively inhibit abnormal temperature rise in the process of switchgear operation.

7. Intelligent functions such as remote control and monitoring.

8. State invention patent “Tulip contact fully-insulated hand-operated lightning arrester car” independently developed by Jinguan Electric can realize timely overhauling and replacement of lightning arrester without power cutoff.

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