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LJK Series Electrical Epoxy Resin Low Voltage Zero Sequence Current Transformer

 
LXK series card type zero sequence current transformer is suitable for zero sequence overcurrent protection and small current grounding line selection devices of cable lines in AC power systems. This series of zero sequence current transformers adopts high-quality imported silicon steel sheets and is processed into a circular iron core through special processes, which has high accuracy and accuracy limit coefficient. The iron core and secondary winding are vacuum cast with high-quality epoxy resin in a flame-retardant plastic shell, which is moisture-proof, stable in performance, maintenance free, small in size, light in weight, and occupies little space. The LXK series card type zero sequence current transformer consists of two semicircular rings and can be installed on connected cables, making it simple, fast, harmonious, and aesthetically. φ80φ100φ120φ140φ160φ180φ200φ240φ260φ300
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1. zero-sequence current transformers provide accurate measurements of ground fault currents, allowing for quick detection and isolation of faults to prevent damage to equipment and ensure safety. Secondly, they are compact in size and easy to install, making them a convenient option for various applications. .


2. zero-sequence current transformers have a wide operating range and can handle high currents, making them versatile and reliable in different settings.


3. zero-sequence current transformers offer excellent linearity and low phase shift, ensuring precise and consistent measurements.  


4. zero-sequence current  transformers are cost-effective and energy-efficient, providing long-term savings for users.


5. Overall, zero-sequence current transformers are a valuable component in electrical systems due to their accuracy, convenience, versatility, reliability, and cost-effectiveness. Whether used in industrial, commercial, or residential settings, these transformers play a crucial role in maintaining the efficiency and safety of electrical networks.


1. Rated secondary current: 5A or 1A

2. Power factor: cosφ=0.8(lag)

3. Rated frequency: 50Hz or 60Hz

4. Rated primary current, rated output, and accurate level see table 1

5. Insulating property: primary winding to secondary winding and ground, and secondary winding to the ground can bear the power frequency withstand voltage 3kV for 1min.



Type

φd

φD

h

H

A1

A2

A3

LXK- φ80

80

160

105

198

90

117

110

LXK- φ100

100

180

116

215

95

124

110

LXK- φ120

120

204

125

237

90

117

110

LXK- φ140

140

219

135

255

95

124

110

LXK- φ160

160

250

155

290

120

160

150

LXK- φ180

180

270

165

310

120

160

150

LXK- φ200

200

306

200

365

100

142

220

LXK- φ240

240

350

221

406

120

160

220

LXK- φ260

260

370

230

426

120

160

220

LXK- φ300

300

420

250

470

120

160

220


1. Altitude: Should not exceed 1000m

2. Ambient temperature: -5ºC ~ +40ºC

3. Air relative humidity: ≤85%

4. Air relative site: Indoor.


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