Home Product Medium And High-Voltage Transformers LCWD、LCWD1、LCWQ、LCWQD-35

HIGH VOLTAGE CURRENT TRANSFORMER

Product overview

The current transformer of type LCWD1-35 is oil insulated and outdoor product. It is used for metering energy, current and relay protection in electric system up to rated frequ-ency 50Hz or 60Hz and rated voltage 35kV.

The type of product has compact structure, small volume, lightweight and its body treated by drying vacuum. It is installed in the bushing filled witt ransto mer oil. The bushing Uoper half-part is the primarv winding and its down half part is the secondary winding The bushing is fixed on the pedestal. The oil storage cabinet is on the top of the bushing.The primary winding's end is led from the two side of the cabinet' s wall. lt' s staring terminal sign P1 is insulated with the wall by some little porcelain pipes and terinal sighed P2 is directly connected with the wall. The front of the oil storage cabinet has some oil-dials showing different temperature and graduation.

Product Features

Application scenarios

Outdoor
Rated voltage

35KV
Performance

Reinforced type
Insulation method

Porcelain insulated
Rated primary current(A)

15~1000A
Accuracy

0.2S,0.2,0.5,10P

Inquiry

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Technical data

Table1 Grade 10P accurate limiting value factor，max Multiple of secondary current and secondary winding impedance for LCW-35，
LCWD-35，LCWQ-35，LCWQD-35 current transformer.

Rated primary current(A)	Accuracy grade	Rated secondary load(Ω)	Grade 10P accurate limit factor	Max.Secondary current multiple(at rated secondary load)
15~1000	0.2S 0.2 0.5 10P	1 2 2	28 5	35 12
15~750,1000		1.0 1.2 1.2	15 15	25 28
15~600		1.0 1.2 1.2	15 30	25 35
15~600		0.8	35	45
750		0.8	35	50
1000		0.8	50	55

Table 2 Short circuit standing current of LCW-35,LCWD-35,LCWQ-35,LCQD-35 Current transformer

Rated primary current ratio(A)	Multiple of 1s short-time thermocurrent(kA)	Multiple of rated peak withstand current
15-1000	90 lin	150 lin
15-750	65 lin	100 lin
1000	65 lin	150 lin
15-600	65 lin	100 lin