Model LVQB Insulated Current Transformer from China manufacturer - Yunnan Nanyue Electric Power Equipment Co., Ltd.

Model LVQB Insulated Current Transformer

Payment Terms:	T/T,L/C,WU,Paypal
Place of Origin:	Yunnan, China (Mainland)


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Product Detail

Model No.: Model LVQB SF6

Production Capacity: 100000

Delivery Date: Delivery in 5 work days aft...

Means of Transport: Ocean,Land

Packing: Export Standard package

Brand Name: Nanyue

The enclosure, locating at the top, could be divided into "T" shape and "bell-cover" shape. T shaped enclosure is made of anticorrosive aluminum;

Summary

The enclosure, locating at the top, could be divided into "T" shape and "bell-cover" shape. T shaped enclosure is made of anticorrosive aluminum; Bell-cover enclosure is made of casting aluminum. The enclosure is checked by intensity and gas sealing and X ray.

The main body (primary winding and secondary winding) is fixed in the enclosure. SF6 is adopted as the insulating medium between the primary winding and secondary winding in which has the shield tube supported by epoxy resin for the secondary winding. The outgoing line for the secondary winding is lead to the connection box in pedestal through down-lead tube.

Feature

1.The insulating tube, dividing into porcelain tube that is sintered by high-strength porcelain and silicon-rubber tube, and silicon-rubber porcelain which has better performances in resisting pollution,water invasion and electric corrosion comparing with that high-strength porcelain.

2.The pedestal is designed with connection box,SF6 gas density controller and gas filling valve. The Sf6 gas density controller provideds the functions as temperature compensation,alarm and remote monitor to the gas pressure.

Working condition:

Ambient temperature

maximum: +40°C

average temperature in a day: +30°C

minimum: -30°C(-40°C is available for particular order)

Height above sea level

within 1000 meters, while 3000 meters is the maximum for the altiplano-style

Air condition

There should be no heavily corrosive gas, no inflammable and explosive material;

Seismic intensity: 8 degree

Velocity: within 35m/s

Installation place: outdoor or indoor.

Main Technical Parameters

Type designate		LVQB-35		LVQB-66/110		LVQB-220		LVQBT-500
Structure		T shape	Bell-cover shape	T shape	Bell-cover shape	T shape	Bell-cover shape	Bell-cover shape
Rated voltage kV		35		66/110		220		500
Maximum voltage kV		40.5		72.5/126		252		550
Rated frequency Hz		50		50		50		50
Short-time power frequency withstand kV		95		160/230		460		740
Lightening full wave impulse voltage kV		200		350/550		950/1050		1550/1675
Partial discharge pC		<5		<5		<5		<5
Rated primary current		50-2000		50-3000		100-3000		600-5000
Rated secondary current		5 or 1		5 or 1		5 or1		1
Accuracy class		0.2s;0.2		0.2s;0.2		0.2s;0.2		0.2s;0.2
		0.5s;0.5		0.5s;0.5		0.5s;0.5		0.5s;0.5
		5P;10P		5P;10P		5P;10P;TPY		5P;10P;TPY
Rated output VA		10-60		10-60		10-60		10-60
Meter protection factor FS		5;10		5;10		5;10		5;10
Accuracy limit factor		10;15;20;25;30
Short-time hot stability current kA/s		12.5-31.5/1		31.5-50/3		31.5-50/3		50-63/3
Rated dynamic stability current kA		31.5-125		80-125		80-125		125-160
SF6 rated pressure (20C) Mpa		0.4		0.4		0.4		0.5
SF6 filling pressure (20C) Mpa		0.35		0.35		0.35		0.45
SF6 annual leakage %		<0.5		<0.5		<0.5		<0.5
SF6 moist content ppm		<150		<150		<150		<150
Outline dimension	A1 mm	1125/1250		2195		3600/3770		6695
	A2 mm	610/570		1064 Max		1300/1440		2073
	A3 mm	960/1000		1900		3180/3240		5913
Pedestal mounting hole dimension	4-φd1	4-φ22		4-φ22		4-φ22		4-φ26
	B1XB2 mm	430X330		550X450		780X640		940X940
Primary connection board dimension	C1 mm	/30		50		50
	C2 mm	/10		15		20
	C3 mm	/50		80		80
	4-φd2	4-φ9		4-φ18		4-φ18
Weight kg		100		400-500		900-1200		2300

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