Ground Earth Fault Protection Relay , 5A Digital Protective Relay
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:
KRIPAL
Relay 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 90-120VAC |
Frequency | 50/60Hz |
FEATURES
A. Low-set definite time relay
B. High-set instantaneous relay
C. Separate low- set and high-set trip indicators
D. Low-set trip and pickup indicator
E. High-set trip indicator
F. Auto reset and manual reset contacts available
G. Option to disable the high-set relay
H. Front panel access to the test function
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>
AUXILIARY SUPPLY:
Supply voltage: 198-265V AC; 90-120V AC
Rated frequency: 50/60Hz
CONTACTS
Configuration: 1* latching type with manual reset
1*non-latching type with auto
reset
NO NC contacts available
Trip contact: Automatic reset type
NC&NO contact type
6A. 250V AC
Silver alloy contact material
100, 000 electrical operations at rated currents
IINDICATORS
Auxiliary supply: green LED indicator light
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
