Local Breaker Back Up Protection Relay
₹23,595.00
Product Code: JRC 154
Time line :Products will be shipped within 3 weeks from the date of order
Stock In Stock
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Product Description
Features
- Wide OC setting range
- Wide time setting range
- Fast reset time
- High drop-off / pickup ratio
Application
JRC 154 local breaker backup relay, is used to check the operation of distribution end circuit breakers and to trip the feeder end circuit breaker if the distribution end circuit breaker fails to trip.
Principle of Operation
If a fault occurs at the distribution end and the respective protective relay operates but the corresponding CB fails to operate then the system may have
to face catastrophic consequences. JRC-154 is a instantaneous and definite time over current relay that also monitors the non-potential contacts of the
downstream protective relays. The relay is designed to trip the feeder end CB if the protective relay at the distribution end operates but its corresponding CB fails
to operate.
Ratings
Settings
OVER LOAD RATINGS
Burden
Operating Time
ACCURACY
Primary current rating :
1A / 5A
Frequency :
50Hz
Auxiliary Supply :
1) 20 to 60V DC
2) 75 to 150V DC / AC
3) 175 to 300V DC / 185 to 250V AC
2) 75 to 150V DC / AC
3) 175 to 300V DC / 185 to 250V AC
Over Current :
5 to 200% in steps of 5%
Definite time :
50 ms to 1.25 sec in steps of 10 ms.
AC current input :
2 times rated continuously
20 times Rated for 3s
20 times Rated for 3s
AC current input :
0.2VA Per phase (at Rated 5A)
0.05VA per Phase (at Rated 1A)
0.05VA per Phase (at Rated 1A)
Aux. Supply :
Less than 5W (Non Operated)
Less than 10W (Operated)
Less than 10W (Operated)
Instantaneous operating time :
Less than 10 ms.
Current protection :
±5%
Operating Time :
±5%
Contact Ratings
Contact Durability
Insulation
Rating :
10A at 24V DC/230V AC
Unloaded contact :
10,000 Operations
Loaded contact :
20,000 Operations
- 2KV RMS, 50 Hz for 1 minute / 2.5 KV for 1 sec .
Between all terminals and earth - 2. 1 KV RMS, 50 Hz for 1 minute across open contacts as per IEC 60255-5
Weight :
Approx. 2500 gms
Case Size :
144sq mm, depth 232mm
Installation :
Flush mounting
Panel cutout :
138mm x 138mm
TERMINAL DIAGRAM
