1-8 735/737 Feeder Protection Relay
GE Power Management
1.3 SPECIFICATIONS 1 INTRODUCTION
1
1.3.5 MISCELLANEOUS
INDICATORS
Phase time overcurrent trip A,B,C (latched)
Phase instantaneous overcurrent trip A,B,C (latched)
Ground fault time overcurrent trip (latched)
Ground fault instantaneous overcurrent trip (latched)
Relay in service
Service required
Phase pickup
Ground pickup
Current level LED bar
raph:10-100%
ENVIRONMENT
Operatin
temperature ran
e: –40°C to +70°C
TYPE TESTING
Insulation Resistance: per IEC 255-5 (500 V DC, 2000 MΩ)
Dielectric Stren
th: per IEC 255-5 and ANSI/IEEE C37.90 (2 kV at 60 Hz for 1 minute)
Impulse Volta
e per IEC 255-5 (5 kV)
Sur
e Immunity: per EN 61000-4-5 (common mode 4 kV, differential modes 2 kV)
Oscillatory Sur
e Withstand:per ANSI/IEEE C37.90.1, per Ontario Hydro A-28M-82
Volta
e Dips per IEC 61000-4-11 (0%, 40%, 70%)
Electrostatic Dischar
e: per IEC 255-22-2 (4/4 kV)
Damp Heat (Humidity Cyclic):per IEC 68-2-30 (6 days)
Make and Carry for relays:per IEEE C37.90 (30 A)
Current Withstand: per ANSI/IEEE C37.90 (40 × rated 1 A for 2 seconds;
60
×
rated 5 A for 1 second
)
RFI Radiated Immunity: per IEC 255-22-3 (160 MHz, 460 MHz), per EN 61000-4-3 (10 V/m)
RFI Conducted Immunity:per EN-61000-4-6 (10 V)
Temperature Cycle: –40°C, +60°C (per GE internal procedures)
Mechanical Stress: 2
(per GE internal procedures)
Current Calibration: per GE internal procedures
10 A DC continuous relay current carry at 80°C per GE internal procedure
It is recommended that the 735/737 relays be powered up at least once per year to avoid deterioration of
electrolytic capacitors in the power supply.
NOTE
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