Wound primary current transformers

   B SERIES

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Indoor

3.6- 7.2 - 12 - 17.5 -24 - 36 KV

Primary current from 0 to 800 A

Ith up to 1000 Ipn

Connection by bar

Cast-rein insulated

 

 

 

 

Current transformers vacuum Moulded in self-extinguishing epoxy resin for the measurement of AC currents up to 800A.

This range is particularly suitable when primary connection using bars is required

 

Technical data

Rated insulation level

 

3.6/10/40 kV   to  36/70/170 kV

 

primary current Ipn

 

Up to 800A

 

 

Secondary current Isn

 

5 or 1 A

 

 

 

Frequency

 

 

50 or 60 Hz

 

 

Rated output

 

1 to 100 VA

 

 

Accuracy class

 

0.1 - 0.2 - 0.2S -0.5-0.5S-1-3-5P-10P-ClX

Security factor

 

5  to 10

 

 

 

Accuracy limit factor

 

5-10-15-20-30

 

 

Continuous thermal current

1.2 Ipn

 

 

 

Short-time thermal current Ith

Up to 1000 Ipn

 

Dynamic current Idyn

 

2.5 Ith

 

 

 

Insulation class

 

E

 

 

 

Altitude

 

1000 m

 

 

Ambient temperature

 

-5C° to + 40 C°

-25C° to + 40 C°

-40C° to + 40 C°

 

 

Standards

 

 

 

IEC60044-1, IEC61869-2,ANSI C57.13 , IEC60044-6

 



 

 

Other characteristics on request

Secondary current Isn

 

 

0.005 to 10 A

 

 

Multiple cores

 

Up to 5 separate cores

 

 

Continues thermal current

 

1.2 to 1.5Ipn and 2Ipn

 

 

Ambient temperature

 

Up to + 110C°

 

 

Standard

 

 

ANSI C57.13, CAN13- AS1675



 

 

Selection  and dimentiontable:

Type

Un

Weight

A

B

C

D

E

G

J

K

L

 

KV

kg

mm

mm

mm

mm

mm

mm

mm

mm

mm

B2

17.5/38/95

11

178

170

235

290

55

60

115

236

196

B3

17.5/38/95

13

178

190

235

290

55

60

115

236

196

B5

17.5/38/95

25

212

280

260

315

55

50

125

236

200

B20

24/50/125

18

255

176

290

350

60

60

160

220

180

B22

24/50/125

25

252

232

293

353

60

60

180

220

180

B30

36/70/170

24

275

212

330

390

60

60

185

220

180

B32

36/70/170

39

272

254

346

406

60

60

180

220

180



 

 
 

*This document is the property of Pars Shar and maybe changed without prior notice*