Sensitive Earth Fault Idmt Protection; Negative Sequence Overcurrent Protection; Thermal Overload Protection; Undervoltage Protection - NR Electric PCS-9611 Instruction Manual

2 Technical Data

2.2.10 Sensitive Earth Fault IDMT Protection

Current threshold setting
Pickup current
Dropout current
Tolerance of current threshold setting
Time multiplier setting
Pickup time
Dropout time
Tolerance of trip time for 1.2 < I/Ip < 30

2.2.11 Negative Sequence Overcurrent Protection

Current setting
Pickup current
Dropout current
Tolerance of current setting
Time setting
Pickup time
Dropout time
Tolerance of time setting

2.2.12 Thermal Overload Protection

Reference current setting
Pickup current
Dropout current
Tolerance of reference current setting
Time constant setting
Pickup time
Dropout time
Tolerance of trip time for 1.2 < I/(k×Ib) < 20

2.2.13 Undervoltage Protection

Voltage setting
Pickup voltage
Dropout voltage
Tolerance of voltage setting
Time setting
Pickup time
Dropout time
Tolerance of time setting
2-8
0.005A ~ 1.000A, dedicated CT
1.00×Setting
0.95×Setting
≤ 1.5% Setting or 1mA, whichever is greater
0.05 ~ 100.00
≤ 35ms
≤ 35ms
≤ 5% of reference (calculated) value + 1.5% current
tolerance or 35ms, whichever is greater
0.05×In ~ 4.0×In
1.00×Setting
0.95×Setting
≤ 2.5% Setting or 0.01×In, whichever is greater
0.03s ~ 100.00s
≤ 50ms
≤ 50ms
≤ 1% Setting + 50ms
0.05×In ~ 3.0×In
1.00×Setting
0.98×Setting
≤ 2.5% Setting or 0.01×In, whichever is greater
0.01s ~ 6000.00s
≤ 35ms
≤ 35ms
≤ 5% of reference (calculated) value + 2.5% current
tolerance or 35ms, whichever is greater
2.00V ~ 120.00V
1.00×Setting
Configurable: 1.03×Setting ~ 3.00×Setting
≤ 2.5% Setting or 0.10V, whichever is greater
0.00s ~ 100.00s
≤ 80ms
≤ 80ms
≤ 1% Setting + 80ms
Date: 2014-04-08
PCS-9611 Feeder Relay