Three Pole, Numerical ,NON-DIRECTIONAL, 3 O/C OR 2 O/C+1 E/F Relay Without Inst. Highset
₹24,710.40
Product Code: JNC 053/JNC 053P
Time line :Products will be shipped within 3 weeks from the date of order
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Product Description
Features
- Software based design
- Choice of four curves and definite time
- History of 5 latest faults
- Self supervision facility
- Wide setting ranges
- Draw -out case
Application
The relay provides time graded phase and earth fault
protection of Generators, Transformers, Feeder, capacitors etc.,
PRINCIPLE OF OPERATION
The relay provides over current protection for power systems. Relay operating time is determined by selecting definite time characteristics or one of the four inverse time characteristics i.e. (3s normal inverse, 1.3s normal inverse, 1.5s very inverse and 0.8s extremely inverse). The relay measures the current from each phases and if it exceeds the set threshold,the relay extends a trip signal after an operating time as determined by the selected curve.
Ratings
SETTINGS
OVER LOAD RATING
BURDEN
Current rating ( In )
:
1A / 5A
Aux. Supply :
1) 20 to 60V DC
2) 75 to 150V AC / DC
3) 175 to 300V DC / 185 to 250V AC
2) 75 to 150V AC / DC
3) 175 to 300V DC / 185 to 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) Definite time
2) 1.3s Normal Inverse
3) 1.5s Very Inverse
4) 0.8s Extremely Inverse
5) Definite time
Phase O/c (IDMT):
50 to 200% in steps of 5%
Definite time :
0.1 to 25.0 Sec in steps of 0.1s
Earth fault (IDMT) :
5 to 50% in steps of 1%
10 to 80% in steps of 1%
10 to 80% in steps of 1%
TMS :
0.02 to 1.0 in steps of 0.01
(separate for O/C & E/F)
(separate for O/C & E/F)
Reset Mode :
Hand / Self Reset (Programmable , Common for Phase
& E/F)
Current input :
2 times rated continuous
20 times rated for 3s
20 times rated for 3s
Current input :
0.2 VA 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)
ACCURACY
CONTACT RATINGS
CONTACT DURABILITY
INSULATION
Operating value :
105% to 120% of setting
Drop-off / pick-up :
Between 80% to 95%
Operating Time :
±5% or ±30ms whichever is higher
High set operating value :
±5% or ±30ms whichever is higher
High set operating time :
Less than 30ms @ 2 times current setting
Reset Time :
160ms to 180ms
TRIP / ALARM / Self Supervision
10A at 24V DC / 230V AC
Loaded contact
10,000 operations min.
Unloaded contact
20,000 operations min.
- 2KV RMS, 50 Hz for 1 minute / 2.5 KV for 1 sec .
Between all terminals and earth. - 1KV RMS, 50 Hz for 1 minute across open contacts
Weight Case
2500 gms. (approx),
Size
144sq mm, depth 232mm
Installation
Flush mounting
Panel cutout
138mm x 138mm
TERMINAL DIAGRAM
