LJ1 J-2, 4, 7 dry-type zero-sequence current transformer
Keywords: current transformer, voltage transformer
Classification:
Introduction
Product Overview
This series of zero-sequence current transformers is used in conjunction with DD-11/60 (or other models with similar parameters) relays for grounding protection of generators, synchronous compensators, or motors in grounding current systems. When there is a grounding fault within the protection range, a residual current is generated in the secondary circuit of the transformer. When this current reaches a certain value, the relay operates, providing protection.
Technical Parameters
| Model |
Secondary Load (Q) |
Setting Current (Residual Current in Secondary Circuit) (A) |
Sensitivity (A) (Primary Current that Triggers the Relay) |
Unbalanced Voltage in Secondary Circuit (mV) |
Weight (kg) |
| LJ1 |
10 |
0.03 |
1-3 |
40 |
2.3 |
| LJ-2 |
19 |
||||
| LJ-4 |
28 |
||||
| LJ-7 |
30 |
26 |
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The leading products of the enterprise are current and voltage transformers, combined transformers, electronic current transformers and electronic voltage transformers of 35kV and below.
Contact Us
Address: Taiping Office Home Industrial Zone, Pulandian District, Dalian City, Liaoning Province
Technical Department:（0411）83160101
Fax:(0411)83148488
Website:www.dlzgh.com
E-mail：dlzghgq@dlzgh.com
