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Lxk Indoor Electromagnetic Type Round Toroidal ring Type Epoxy Resin Open-Close Split Core Core Balance Type Zero Sequence Current Transformer CT Residual Current Transformer CT Earthing Grounding Pro

LXK zero sequence current transformer

 

Model description

LXK-φ80(100,120,200,300)

L: Current transformer

X: Zero sequence

K: Open-close type

φ80(100,120,200,300): Nominal diameter of inner hole

 

It is suitable for use with DD-11/60 or DD-1/60 type relay and signal device in small grounding current system with rated frequency 50/60Hz and rated voltage 35kV and below for residual (zero sequence) current detection and grounding protection, while acting the device ,achieving protection and monitoring. LXK series of residual (zero sequence) current transformer is cable resin pouring insulation indoor product, this series zero sequence current transformer is open and close type, epoxy resin casting structure, when installation it can be divided to two parts, and then merged into one, it is easy to install, this transformer inner diameter has the specifications φ80,φ100,φ120,140,φ150,φ160,φ180,φ200,φ240,φ260,φ300.

 

Technical parameter

The cable ensures the primary main insulation of this series current transformer, products only test the secondary winding insulation performance, the power frequency withstand voltage of the secondary winding to the ground is 3kV.

Model

LXK-φ80

LXK-φ100

LXK-φ120

LXK-φ140

LXK-φ160

LXK-φ180

LXK-φ200

LXK-φ240

LXK-φ260

LXK-φ300

Rated current ratio(A)

50-600/1 or 150-300/5…

Accuracy

5P10   5P20…

Capacity

1-15VA or 15VA

 

Relay model

Relay coil connection

Relay scale value(mA)

Primary zero sequence current of relay acting(A)

DD-11/60

series connection

15x1-30x1

2-5

parallel connection

15x2-30x2

DD-1/60

series connection

15x1-30x1

3-6

parallel connection

15x2-30x2

 

Model

ΦD

Φd

H

h

LXK-Φ80

160

80

175

82.5

LXK-Φ100

180

100

195

92.5

LXK-Φ120

200

120

215

102.5

LXK-Φ140

220

140

235

112.5

LXK-Φ150

230

150

245

117.5

LXK-Φ160

240

160

255

122.5

LXK-Φ180

260

180

275

127.5

LXK-Φ200

280

200

295

132.5

LXK-Φ240

320

240

315

137.5

LXK-Φ260

340

260

335

142.5

LXK-Φ300

380

300

355

147.5



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