Single Pole, Non-directional, IDMT O/c Or E/f Relay
₹18,411.25
Product Code: JRC 051P/JRC 051
Time line :Products will be shipped within 3 weeks from the date of order
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Product Description
Features
- Software based design
- Programmable time current characteristics
- Choice of three IDMT curves
- Draw out case
- Wide setting ranges
Application
The relay provides time graded phase or earth fault protection
of Genrators, Transformers, Feeder, capacitors etc.
Principal of Operation
The relay measures the line current from each of the phases and if exceeds the set operating current, then relay extends a trip signal after the operating time. The relays operating time is
determined by selecting one of the four inverse time current characteristics. The relay has facility to active / inhibit the high set protection feature. The relay output contacts are Self reset / Hand reset type. Relay operation without any fault current is determinated by trip test facility.
Ratings
Settings
OVER LOAD RATINGS
Current rating :
1A / 5A
Auxiliary Supply :
1) 20-60V DC
2) 75 – 150V AC / DC
3) 175 – 300V DC / 185 – 250V AC
2) 75 – 150V AC / DC
3) 175 – 300V DC / 185 – 250V AC
Operating characteristics :
1) 3.0s Normal Inverse
2) 1.3s Normal Inverse
3) 1.5s Very Inverse
4) 0.8s Extremely Inverse
5) 0.6s Extermely Inverse
2) 1.3s Normal Inverse
3) 1.5s Very Inverse
4) 0.8s Extremely Inverse
5) 0.6s Extermely Inverse
Phase Overcurrent :
50% to 200% in steps of 10% or
20% to 140% in steps of 10%
20% to 140% in steps of 10%
Earth fault :
5 to 80% in steps of 5%
TMS :
0.1 to 1.0 in steps of 0.01
(Seperate for O/c & E/F)
(Seperate for O/c & E/F)
Current input :
2 times rated continuous
20 times Rated for 3s
40 times of rated for 1s
20 times Rated for 3s
40 times of rated for 1s
Burden
Accuracy
Contact Ratings
Contact Durability
Mechanical Design
STANDARD COMPLIANCE
Current input :
0.2VA per phase (rated 5A)
0.05VA per phase (rated 1A)
0.05VA per phase (rated 1A)
Aux. Supply :
Less than 8W (Non operated)
Less than 10W (Operated)
Less than 10W (Operated)
Operating value :
105% to 120% of setting
Drop-off / pick-up :
Between 80% to 95%
Operating time :
±5% or ±30ms whichever is higher
Reset Time :
160ms to 180ms
Trip / Alarm :
10A at 24V DC/230V AC
Unloaded contacts :
10,000 operations min.
Loaded contact :
100,000 operations min.
Weight :
2500gms. Approx.
Case Size :
144 sq mm with depth of 232 mm
Installation :
Flush mounting
Panel cuttout :
138 x 138 mm
Accuracy test :
IEC 60255-3
Insulation test :
IEC 60255-5
Terminal Diagram
