12kV Air-Insulated Switchgear

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China Mainland
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Description

Product Detail

XD Baoji Electric Co.,Ltd is one of the leading China 12kv air-insulated switchgear manufacturers and suppliers, as a professional company, our factory is able to produce quality 12kV AIS, 12kv air-insulated switchgear products at competitive price.

Product Description
      KYN28-12 series indoor AC metal enclosed switchgear is three-phase A.C 50Hz indoor complete distributing equipment with the voltage range 12KV. It is used for power plant to transmit power and used for electricity system, industrial and mineral enterprise to receive and distribute power.
      The structure of this switchgear is metal enclosed, withdrawable truck, the frame of the enclosure is made of steel plates which surface is covered by aluminum and Zinc, multiple bending and built-up with bolt. It can be equipped with VXB-12?VXB-12P?VS1-12 series vacuum circuit breaker, withdrawable truck with leading screw and nut mechanism, safe and reliable. The wrong operation can be avoided due to its function of the ‘FIVE PROVENTION’. It can meet the standard requirments of IEC62271-200?IEC62271-1?GB3906?GB/T11022 etc.
      Overall dimension (W×D×H mm):800(650/1000)×1500(1800)×2350.
Features of Product
      Altitude above sea level 4000m and below.
      Current rating up to 4000 A/50kA.
      Internal arc classified (IAC):AFLR,31.5kA/1s.
      Equipped with VXB-12P series vacuum circuit breaker with embedded poles, with independent intellectual property.
      The internal barriers are made up of steel plate, and the loss of service continuity category (LSC) can meet the requirments of LSC2B.
      Can equipped with motor-driven earthing switch and motor-driven truck,to realize the unattended.
Technical Parameters

Item		Unit	Data
Rated voltage		kV	12
Rated current		A	630?1250?1600?2000?2500?3150?4000
Rated frequency		Hz	50
Rated Short-time withstand current	Main circuit	kA/4s	20?25?31.5?40
	Earthing switch	kA/4s	20?25?31.5?40
	Earthing circuit	kA/2s	17.4?21.8?27.4?34.8?43.5
Rated peak withstand current	Main circuit	kA	50?63?80?100
	Earthing switch	kA	50?63?80?100
	Earthing circuit	kA	43.5?54.5?68.5?87?108.8
Degree of protection	Enclosure	IP4X
Degree of protection	Compartment	IP2X
Rated insulation level	Rated power-frequency withstand voltage	kV/1min	42
Rated insulation level	Rated lightning impulse withstand voltage	kV	75
IAC	Fault current	kA	31.5
IAC	Duration	s	1