2-24
N60 NETWORK STABILITY AND SYNCHROPHASOR MEASUREMENT SYSTEM – INSTRUCTION MANUAL
SPECIFICATIONS
CHAPTER 2: PRODUCT DESCRIPTION
2
Wet contacts:
300 V DC maximum
Selectable thresholds:
17 V, 33 V, 84 V, 166 V
Tolerance:
±10%
Contacts per common return:
4
Recognition time:
< 1 ms
Debounce time:
0.0 to 16.0 ms in steps of 0.5
Continuous current draw:
4 mA (when energized)
CONTACT INPUTS WITH AUTO-BURNISHING
Dry contacts:
1000
Ω
maximum
Wet contacts:
300 V DC maximum
Selectable thresholds:
17 V, 33 V, 84 V, 166 V
Tolerance:
±10%
Contacts per common return:
2
Recognition time:
< 1 ms
Debounce time:
0.0 to 16.0 ms in steps of 0.5
Continuous current draw:
4 mA (when energized)
Auto-burnish impulse current:
50 to 70 mA
Duration of auto-burnish impulse:
25 to 50 ms
DCMA INPUTS
Current input (mA DC):
0 to –1, 0 to +1, –1 to +1, 0 to 5, 0 to 10, 0 to 20, 4 to 20 (programmable)
Input impedance:
379
Ω
±10%
Conversion range:
–1 to + 20 mA DC
Accuracy:
±0.2% of full scale
Type:
Passive
RTD INPUTS
Types (3-wire):
100
Ω
Platinum, 100 and 120
Ω
Nickel, 10
Ω
Copper
Sensing current:
5 mA
Range:
–50 to +250°C
Accuracy:
±2°C
Isolation:
36 V pk-pk
IRIG-B INPUT
IRIG formats accepted:
B000…B007, B120…B127
IRIG control bits:
IEEE Std C37.118.1-2011
Amplitude modulation:
1 to 10 V pk-pk
DC shift:
TTL–Compatible
Input impedance:
50 k
Ω
Isolation:
2 kV
DIRECT INPUTS
Input points:
64
Remote devices:
16
Default states on loss of comms.:
On, Off, Latest/Off, Latest/On
Ring configuration:
Yes, No
Data rate:
64 or 128 kbps
CRC:
32-bit
CRC alarm:
Responding to:
Rate of messages failing the CRC
Monitoring message count:
10 to 10000 in steps of 1
Alarm threshold:
1 to 1000 in steps of 1
Unreturned message alarm:
Responding to:
Rate of unreturned messages in the ring configuration
Monitoring message count:
10 to 10000 in steps of 1
Alarm threshold:
1 to 1000 in steps of 1
