1.18
SEL-700G Relay Instruction Manual Date Code 20170814
Introduction and Specifications
Specifications
Negative-Sequence Overcurrent Elements (46)
Definite-Time and Inverse-
Time Neg.-Seq. I
2
Pickup:
2%–100% of generator rated
secondary current
Generator Rated Secondary
Current:
5 A Model: 1.0–10.0 A secondary
1 A Model: 0.2–2.0 A secondary
Steady-State Pickup
Accuracy:
5 A Model: ±0.025 A plus ±3%
1 A Model: ±0.005 A plus ±3%
Pickup Time: 50 ms at 60 Hz (Max)
Definite-Time Delay Setting
Range: 0.02–999.90 s
Maximum Definite-Time
Delay Accuracy: ±0.1% plus ±4.2 ms at 60 Hz
Inverse-Time Element Time
Dial: K = 1 to 100 s
Linear Reset Time: 240 s fixed
Inverse-Time Timing
Accuracy:
±4% plus ±50 ms at 60 Hz for | I
2
|
above 1.05 multiples of pickup
Rate-of-Change of Frequency (81R)
Pickup Setting Range: Off, 0.10–15.00 Hz/s
Accuracy: ±100 mHz/s plus ±3.33% of pickup
Trend Setting: INC, DEC, ABS
Pickup/Dropout Time: 3–30 cycles, depending on pickup
setting
Pickup/ Dropout Delay
Range:
0.10–60.00/0.00–60.00 s, 01 s
increments
Voltage Supervision (Positive
Sequence) Pickup Range: Off, 12.5–300.0 V, 0.1 V increments
Synchronism Check (25Y) for Tie Breaker
Synchronism-Check Voltage
Source:
VAY, VBY, VCY, VABY, VBCY,
VCAY or angle from VAY or VABY
Voltage Window High
Setting Range: 0.00–300.00 V
Voltage Window Low Setting
Range: 0.00–300.00 V
Steady-State Voltage
Accuracy:
±5% plus ±2.0 V (over the range
of 12.5–300 V)
Maximum Percentage
Voltage Difference: 1.0–15.0%
Maximum Slip Frequency: –0.05 Hz to 0.50 Hz
Steady-State Slip Accuracy: ±0.02 Hz
Close Acceptance Angle 1,
2: 0–80°
Breaker Close Delay: 0.001–1.000 s
Steady-State Angle
Accuracy: ±2°
Synchronism Check (25X) for Generator Breaker
Synchronism-Check Voltage
Source:
VAX, VBX, VCX, VABX, VBCX,
VCAX or angle from VAX or VABX
Voltage Window High
Setting Range: 0.00–300.00 V
Voltage Window Low Setting
Range: 0.00–300.00 V
Steady-State Voltage
Accuracy:
±5% plus ±2.0 V (over the range of
12.5–300 V)
Maximum Percentage
Voltage Difference: 1.0–15.0%
Minimum Slip Frequency: –1.00 Hz to 0.99 Hz
Maximum Slip Frequency: –0.99 Hz to 1.00 Hz
Steady-State Slip Accuracy: ±0.02 Hz
Close Acceptance Angle 1,
2: 0–80°
Target Close Angle: –15 to 15°
Breaker Close Delay: 0.001–1.000 s
Close Failure Angle: 3–120°
Steady-State Angle
Accuracy: ±2°
Generator Thermal Model (49T)
Thermal Overload Trip
Pickup Level:
30–250% of full load current
(full load current INOM range:
0.2–2.0 • I
NOM
, where I
NOM
= 1 A or
5A)
TCU Alarm Pickup Level: 50–99% Thermal Capacity Used
Time-Constant Range (2): 1–1000 minutes
Time Accuracy Pickup/
Dropout Time:
±(5% + 25 ms) at multiple-of-pickup
2, 50/60 Hz (pre-load = 0)
Autosynchronizing
Frequency Matching
Speed (Frequency) Control Outputs:
Raise: Digital output, adjustable pulse
duration and interval
Lower: Digital output, adjustable pulse
duration and interval
Frequency Synchronism
Timer: 5–3600 s, 1 s increments
Frequency Adjustment Rate: 0.01–10.00 Hz/s, 0.01 Hz/s increment
Frequency Pulse Interval: 1–120 s, 1 s increment
Frequency Pulse Minimum: 0.10–60.00 s, 0.01 s increment
Frequency Pulse Maximum: 0.10–60.00 s, 0.01 s increment
Kick Pulse Interval: 1–120 s, 1 s increments
Kick Pulse Minimum: 0.02–2.00 s, 0.01 s increments
Kick Pulse Maximum: 0.02–2.00 s, 0.01 s increments
Voltage Matching
Voltage Control Outputs:
Raise: Digital Output, adjustable pulse
duration and interval
Lower: Digital Output, adjustable pulse
duration and interval
Voltage Synchronized Timer: 5–3600 s, 1 s increments
Voltage Adjustment Rate
(Control System): 0.01–30.00 V/s, 0.01 V/s increment
Voltage Pulse Interval: 1–120 s, 1 s increment
Voltage Control Pulse
Minimum: 0.10–60.00 s, 0.01 s increment
Voltage Control Pulse
Maximum: 0.10–60.00 s, 0.01 s increment
Timing Accuracy: ±0.5% plus ±1/4 cycle
Metering Accuracy
Accuracies are specified at 20°C, nominal frequency, ac currents
within (0.2–20.0) • I
NOM
A secondary, and ac voltages within
50–250 V secondary unless otherwise noted.
Phase Currents: ±1% of reading, ±1°
(±2.5° at 0.2–0.5 A for relays with
I
NOM
=1 A)
3-Phase Average Current: ±1% of reading
Differential Quantities: ±5% of reading plus ±0.1 A (5 A
nominal), ±0.02 A (1 A nominal)
Current Harmonics: ±5% of reading plus ±0.1 A (5 A
nominal), ±0.02 A (1 A nominal)
IG (Residual Current): ±2% of reading, ±2° (±5.0° at 0.2–0.5
A for relays with I
NOM
=1 A)
IN (Neutral Current): ±1% of reading, ±1°
(±2.5° at 0.2–0.5 A for relays with
I
NOM
=1 A)
3I2 Negative-Sequence
Current: ±2% of reading
To Next Page
