User`s guide
V3-T9-166 Volume 3—Power Distribution and Control Assemblies CA08100004E—November 2013 www.eaton.com
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9.4
Metering Devices, Protective Relays, Software and Connectivity
Protective Relays
Technical Data and Specifications
Protective Functions
Phase and Ground
Overcurrent Protection
●
Inverse characteristics:
Mod, Very, Extremely,
IECA, IECB, IECC, It, I
2
t,
I
4
t, Flat
●
TOC (51) pickup range:
0.02 to 4.0 per unit in
0.01 steps
●
Time multipliers: 0.05 to
10.0 in 0.01 steps
●
IOC (50) pickup range:
0.1 to 20.0 per unit in
0.01 steps
●
Pickup accuracy: ±1%
(at 0.1 to 2 per unit)
●
Time delay: 0 to 9999
cycles in 1 cycle steps
●
Time accuracy: ±3% or
±30 ms
●
Directional (67, 67N, 67G):
forward, reverse or both
Voltage Unbalance (47)
●
Threshold (minimum
voltage) 1 to 100 volts in
1 volt steps
●
% V2/V1: 2 to 40% in
1% steps
●
Time delay: 0 to 9999
cycles in 1 cycle steps
Current Unbalance (46)
●
Threshold (minimum
current) 0.1 to 20.0 per
unit in 0.01 steps
●
% I2/I1: 2 to 40% in
1% steps
●
Time delay: 0 to 9999
cycles in 1 cycle steps
Under/Overvoltage
Protection (27/59)
●
Pickup range: 10 to
150 volts in 1 volt steps
●
Time delay: 0 to 9999
cycles in 1 cycle steps
Neutral Voltage Protection (59N)
●
Source: calculated,
measure
●
Criterion: phasor, rms
●
Pickup range: 5 to
250 volts in 1 volt steps
●
Time delay: 0 to 9999
cycles in 1 cycle steps
Under/Over Frequency
Protection (81U/O)
●
Pickup range: 45 to 65 Hz
in 0.01 Hz steps
●
Time delay: 0 to 9999
cycles in 1 cycle steps
Breaker Failure
Protection (50BF)
●
Pickup range: 0.02 to
5.0 per unit in 0.01 steps
●
Time delay: 0 to 9999
cycles in 1 cycle steps
Power Factor (55)
●
Trigger/reset threshold:
–0.5 to 1 lag; 0.5 to 0.99
lead in 0.01 steps
●
Time delay: 0 to 1000
seconds in 1 second steps
Power Protection (32)
●
Direction: forward/reverse
●
Criterion: over/under
●
Pickup range: 0.02 to 4 pu
Note: 1pu = 3 x CT secondary
rating x VT secondary rating for
wye; the square root of 3 x VT
secondary rating x CT secondary
rating for open delta.
●
Pickup accuracy: ±1.0%
●
Trip time accuracy:
0 to 2 cycles or 0.1%,
whichever is greater
VAR Protection (32V)
●
Direction: forward/reverse
●
Criterion: over/under
●
Pickup range: 0.02 to 4 pu
Note: 1pu = 3 x CT secondary
rating x VT secondary rating for
wye; the square root of 3 x VT
secondary rating x CT secondary
rating for open delta.
●
Pickup accuracy: ±1.0%
●
Trip time accuracy:
0 to 2 cycles or 0.1%,
whichever is greater
Thermal Protection (49)
●
Pickup range: 0ºF to 390°F
or 0ºC to 199°C
●
Time delay: 0.1 to
3600 seg
Sync Check (25)
●
Phase angle: 1 to 60°
●
Slip frequency: 0.1 to 2 Hz
●
Voltage differential: 1 to
100 volts
●
Breaker close time: 0 to
9999 cycles
Discrete Inputs
●
Number of contact
inputs: 8
●
Rating: 48 Vdc wetting
voltage provided with
internal ground only
Output Contacts
●
Number of output
contacts: Five Form A
and two Form C
Rating of Output Contacts
●
Momentary:
●
Make 30A AC/DC for
0.25
seconds
●
Break 0.25A at 250 Vdc
(resistive)
●
Break 5A at 120/
240 Vac
●
Continuous:
●
5A at 120/240 Vac
●
5A at 30 Vdc
Logic and Control Functions
●
Six programmable logic
gates for AND, OR, NAND,
NOR operation
●
Two latching (flip/flop)
gates
●
Six timer gates provide
on/off delays
INCOM Communications
●
Baud rate: 9600 fixed
●
Maximum distance:
10,000 feet (3,048 m)
●
Protocol: INCOM
RS-232 Communications,
Front Panel
●
Baud rate: 38.4K, 19.2K,
9.6K
●
Connector standard 9-pin
subminiature, three-wire
●
Protocol: INCOM
RS-485 Communications,
Rear Panel
●
Baud rate: 19.2K, 9.6K
●
Protocol: Modbus RTU
Environmental Ratings
●
Operating temperature:
–40ºF to +140ºF (
–40ºC to +60ºC)
●
Storage temperature:
–40ºF to +185ºF
(–40ºC to +85ºC)
●
Humidity: 5% to 95%
relative humidity
(noncondensing)
●
Altitude: 0 to 6,350 feet
(0 to 1,935 m) above Mean
Sea Level