Sensitive 5A Earth Fault Protection Relay for Earth Leakage Protection
A relay used in the power system to detect neutral or ground faults measure the vector difference of the three phase power, or measure the neutral current directly.
Description:
KRIPALRelay is a micro-mrocessor based electronic protection device designed to recognize current leakage to ensure the protection of electrical installations and persons against direct and indirect contacts.
cost-effective earth fault relays comprehensively detect and activate trip protection to medium and low voltage applications. The series of earth fault relays are microprocessor-based numerical relays and are housed in resilient mounted casing. The high end model, IDMT characteristic curves which provide multiple matching protection characteristics curve for different load types.
Specifications:
|
Settings |
|
|
Current rating |
5A |
|
Rated frequency |
50/60Hz |
|
Load |
< 0.3VA at In |
|
Thermal withstand |
4*ln |
|
Auxiliary supply |
|
|
Voltage |
198-265VAC |
|
Frequency |
50/60Hz |
SETTING RANGES
Low-set: 0.1A to 2.0A; 2% to 40%
Time multiplier: 0.01 to 1.0
IDMT curve: Normal inverse
High-set(l>>): L> to 5× L>
CONTACTS
Trip contact: Automatic reset type
Contact rating: NC NO contact type
6A. 250V AC
Silver alloy contact material
100, 000 electrical operations at rated currents
IINDICATORS
Trip indicator: Manual reset type
PERFORMANCE
Adjustable accuracy: Less than ± 5%
Repeatability: Less than 0.5% of full scale
Benefit:
- Accurate, reliable and more resistant to vibration and shock than traditional electromechanical relays
- Current measurement based on fundamental frequency, prevents nuisance tripping
- Programmable relay outputs
- Complies with IEC 60255-26 standards
Applications:
Feeder incoming protection
Outgoing protection
Busbar protection
Full series: earth leakage relay, earth fault relay, overcurrent relay, zero phase transformer
