Date Code 20010719
701 Motor Protection Relay
Introduction & Specifications
Specifications
1.11
Specifications
Standard Relay Features & Functions
Phase Current Inputs
Nominal Current, I
NOM:
1 A or 5 A
Range:
0.05–20.00 • I
NOM
Burden:
0.14 VA @ 5 A, 5 A tap
0.06 VA @ 1 A, 1 A tap
Continuous:
3 • I
NOM
200 Second Thermal:
10 • I
NOM
10 Second Thermal:
20 • I
NOM
1 Second Thermal:
50 • I
NOM
Measuring Error:
±
1%,
±
0.01 • I
NOM
Neutral/Ground Current Input
Nominal
Current, IN
NOM
:
1 A or 5 A
Range:
0.005–2.000 • IN
NOM
Burden:
0.28 VA @ 5 A, 5 A tap
0.19 VA @ 1 A, 1 A tap
Continuous:
0.3 • IN
NOM
1 Second Thermal:
5.0 • IN
NOM
Measuring Error:
±
1%,
±
0.01 • I
NOM
Motor Thermal Model
Locked Rotor Time:
1.0–240.0 s
Locked Rotor Current: 0.5–16.0 • I
NOM
Service Factor:
1.0–1.5
Setting Modes:
45 standard curve shapes
Nameplate ratings
Custom curve shape
Pickup Error:
<
±
1%,
±
0.01 • I
NOM
Timing Error:
±
2.5%,
±
25 ms for
currents > 1.1 times
multiples of pickup
Independent Stop/Run Cooling Rates
Thermal estimate retained through relay
power cycle.
Overcurrent Elements
(Phase, Residual, Negative-Sequence)
Setting Range:
0.05–20.00 • I
NOM
Time Delays:
0.00–400.00 s
Neutral/Ground Overcurrent Element
Setting Range:
0.005–2.000 • IN
NOM
Time Delays:
0.00–400.00 s
Current Unbalance Element
Alarm and Trip Elements
Setting Range:
2%–80%
Time Delays:
0.00–400.00 s
Error:
<
±1%
Definitions
For I
av
> FLA
UB% = 100% • |I
m
–I
av
|/I
av
For I
av
< FLA
UB% = 100% • |I
m
–I
av
|/FLA
Where:
I
av
= Avg phase current
I
m
= Phase most different from I
av
FLA = Motor rated full load amps
Load-Loss/Load-Jam Function
Load-Loss Alarm and Trip
Setting Range:
0.10–1.00 • FLA
Load-Jam Trip
Setting Range:
0.5–6.0 • FLA
Time Delays:
0.00–400.00 s
Starts Per Hour, Time Between Starts
Maximum Starts/Hour: 1–15 starts
Minimum Time
Between Starts:
1–150 minutes
Start data retained through relay power cycle.
Phase Reversal Tripping
Phase reversal tripping based on current or
optional voltage inputs.
Meter Accuracy
Current Metering:
<
±
1%,
±
0.01 • I
NOM
Demand Current Metering:
<
±
1%
Opt. Voltage Metering:
<
±
1%, ±0.2 V
Opt. Power Metering:
±
2%
Opt. Power Factor Metering:
<
±
1.5%
Opt. Frequency Metering:
±
0.01 Hz
Opt. kW, kVa, kVAR Demand:
±
2%
Analog Output
Single Analog Current Output
Settable Range:
0–1 mA,
0–20 mA,
4–20 mA
Max. Load:
8 k or 400 ohms
Error:
±
0.5%, Full Scale
Select from:
%FLA, %Thermal Cap, Hottest RTD, Avg phase
current, Max. phase current
Contact Inputs
6 Self-Wetted Contact Inputs,
Programmable Function
Contact Outputs
1 Trip Contact, 3 Programmable Contacts,
Relay Self-Test Alarm
Form C Contacts
Make/Carry/Interrupt Ratings
Make:
30 A
Carry:
6 A
Interrupt:
8 A Resistive @ 250 Vac
0.75 A, L/R = 40 ms @ 24 Vdc
0.50 A, L/R = 40 ms @ 48 Vdc
0.30 A, L/R = 40 ms @ 125 Vdc
0.20 A, L/R = 40 ms @ 250 Vdc
Serial Ports
Front-Panel EIA-232 Port:
300–19200 baud
ASCII text communication
Rear Panel
ASCII EIA-232 port:
300–19200 baud
Or Modbus
™
EIA-485 port: 300–19200 baud
EIA-485 port isolation:
500 V
Optional Features & Functions
Optional Phase Voltage Inputs
Nominal Voltage:
0–300 Vac
Four-Wire Wye or
Open-Delta Voltages
Burden:
<2 VA at 300 V
Measuring Error:
±
1%,
±
0.2 V
Summary of Contents for SEL-701
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