GE C70 Instruction Manual page 42

SPECIFICATIONS
FORM-A CURRENT MONITOR
Threshold current:
FORM-C AND CRITICAL FAILURE RELAY
Make and carry for 0.2 s:
Carry continuous:
Break (DC inductive, L/R = 40 ms):
Voltage Current
2
24 V 1 A
48 V 0.5 A
125 V 0.3 A
250 V 0.2 A
Operate time:
Contact material:
FAST FORM-C RELAY
Make and carry:
Minimum load impedance:
Input voltage Impedance
2 W Resistor
250 V DC 20 KΩ
120 V DC 5 KΩ
48 V DC 2 KΩ
24 V DC 2 KΩ
Note: values for 24 V and 48 V are the same due to a
required 95% voltage drop across the load
impedance.
Operate time:
Internal Limiting Resistor:
SOLID-STATE OUTPUT RELAY
Operate and release time:
Maximum voltage:
Maximum leakage current in off state
(excluding voltage monitor circuit current): 100 µA
Maximum continuous current:
Make and carry:
for 0.2 s:
for 0.03 s:
Breaking capacity:
Specification
Operations per
interval
Break capability
(0 to 250 V DC)
2-28
approx. 80 to 100 mA
30 A as per ANSI C37.90
8 A
< 8 ms
silver alloy
0.1 A max. (resistive load)
1 W Resistor
50 KΩ
2 KΩ
2 KΩ
2 KΩ
< 0.6 ms
100 Ω, 2 W
<100 µs
265 V DC
5 A at 45°C; 4 A at 65°C
30 A as per ANSI C37.90
300 A
UL 508 Utility application
(autoreclose scheme)
5000 operations, 5 operations
1 second on, 0.2 seconds on
9 seconds off 0.2 seconds off
within 1 minute
1000 operations
0.5 seconds on,
0.5 seconds off
3.2 A at L/R = 10 ms 10 A at L/R = 40 ms
1.6 A at L/R = 20 ms
0.8 A
L/R = 40 ms
Industrial application
10000 operations
0.2 seconds on
30 seconds off
10 A at L/R = 40 ms
C70 CAPACITOR BANK PROTECTION AND CONTROL SYSTEM – INSTRUCTION MANUAL
CHAPTER 2: PRODUCT DESCRIPTION