2-26
N60 NETWORK STABILITY AND SYNCHROPHASOR MEASUREMENT SYSTEM – INSTRUCTION MANUAL
SPECIFICATIONS
CHAPTER 2: PRODUCT DESCRIPTION
2
LATCHING RELAY
Make and carry for 0.2 s:
30 A as per ANSI C37.90
Carry continuous:
6 A as per IEEE C37.90
Break (DC resistive as per IEC61810-1):
Operate time:
< 4 ms
Contact material:
silver alloy
Control:
separate operate and reset inputs
Control mode:
operate-dominant or reset-dominant
FORM-A VOLTAGE MONITOR
Applicable voltage:
approx. 15 to 250 V DC
Trickle current:
approx. 1 to 2.5 mA
FORM-A CURRENT MONITOR
Threshold current:
approx. 80 to 100 mA
FORM-C AND CRITICAL FAILURE RELAY
Make and carry for 0.2 s:
30 A as per ANSI C37.90
Carry continuous:
8 A
Break (DC inductive, L/R = 40 ms):
Operate time:
< 8 ms
Contact material:
silver alloy
FAST FORM-C RELAY
Make and carry:
0.1 A max. (resistive load)
Minimum load impedance:
Operate time:
< 0.6 ms
Internal Limiting Resistor:
100
Ω,
2 W
SOLID-STATE OUTPUT RELAY
Operate and release time:
<100 µs
Maximum voltage:
265 V DC
Voltage
Current
24 V
6 A
48 V
1.6 A
125 V
0.4 A
250 V
0.2 A
Voltage
Current
24 V
1 A
48 V
0.5 A
125 V
0.3 A
250 V
0.2 A
Input voltage Impedance
2 W Resistor
1 W Resistor
250 V DC
20 K
Ω
50 K
Ω
120 V DC
5 K
Ω
2 K
Ω
48 V DC
2 K
Ω
2 K
Ω
24 V DC
2 K
Ω
2 K
Ω
Note: values for 24 V and 48 V are the same due to a
required 95% voltage drop across the load
impedance.