14
Instruction Booklet IB02402001E
December 2010
Instructions for the Eaton Type
MPCV Network Protection Relay
EATON CORPORATION www.eaton.com
For more information visit: www.EatonElectrical.com IB02402001E
Instruction Bulletin
Page 14 Effective: September 2004
Instruction for the
Cutler-Hammer Type MPCV
Network Protection Relay
Testing
Electrical: The relay shall be tested for critical parameters over
the temperature range of -40°C to +120°C for 24 hours.
Submergibility: Waterproof to 0.5 atmosphere.
Burn-in
Each relay is burned-in for 24-hour period including 5 hours at
-40°C, 5 hours at 85°C, and 1 hour at 120°C, 10 hours at
25°C and ramp time is 4 hours.
Settings
All settings can be edited through a digital pendant, which
plugs into the unit while the relay is powered. The trip and
close operations along with remote communications are inhib-
ited and the float light is flashing while editing.
System Voltage (Metered)
216, 380, 400, 416, 433, 480, 600 volts.
Operating Frequency
50 Hz, 60 Hz
Phase Rotation
ABC, CBA
CT Ratio
800, 1200, 1600, 2000, 2500, 3000, 3500
Close Characteristic Line
ST ML (ON, Straight Line), Circular (ST ML is OFF).
Phasing Voltage
ML: 0.5 V to 5.4 V,
Increments: 0.10, 0.20
Phasing Line
PL: +5°, 0°, -5°, -10°, -15°, -25°
Increments: 5°
LH ML: +60° to +90°
Increments: 5°, 10°
Dead Network
Network voltage must be equal or less than 7 volts.
Trip Current
Sensitive, RT: 0.05 to 5% (2.5 to 250 mA)
Increments: 0.01, 0.20
Insensitive (Overcurrent, OC): 0 to 250% (0 to 12.5
amperes).
A minimum of 1% OC when time delay is set other than zero.
Increments: 1, 20
Time Delay
TD: 0 — sensitive mode, no instantaneous overcurrent pickup.
TD: 0.25 to 300 seconds, instantaneous overcurrent pickup is
enabled.
Increments: 0.25 second, 20 seconds.
TD: INF disables the sensitive setting, set the time delay to
infinite and only permit tripping on insensitive OC value.
Watt-Var
Enable: On, Off
Angle: 60°
Pump Protection
Enable: On, Off
Breaker Cycles: 3 to 20
Increments: 1, 5
Pump Time: 30 to 300 seconds
Increments: 1, 10
Reset Time: 15 to 60 minutes
Increments: 1, 10
Auxiliary Input
Enable: On, Off
Enable, Disable
Contact: NO (Normally Open), NC (Normally Closed).
Tolerances
The relay shall operate within the tolerance shown while
operating over the normal temperature range of -20°C to
+110°C and the normal network voltage range of 12 to 190
Vac.
Sensitive Trip: ±5% of setting or ± 0.5 mA, whichever is
greater.
Instantaneous Trip: ±5% of setting or ±0.1 A, whichever
is greater.
Insensitive Trip: ±5% of setting or ±0.1 A, whichever is greater.
Time Delay: ±1% of setting.
Phasing Voltage: ±5% of setting or ± 0.2 volts, whichever
is greater.
Phasing Angle: ±1 degree of setting.
Phase Compensation Angle: ±2 degree of setting.
Trip and Close Angle: ±1 degree of setting.
Operation
Automatic Trip
The trip contacts shall close within 5 cycles of reverse cur-
rent detection. The magnitude and direction of the current
must exist for at least 2 cycles to initiate trip operation.
Sensitive — The relay shall permit a trip when the reverse
current is in the trip region and magnitude is equal or greater
than the sensitive current setting.
Insensitive — The relay is set to insensitive mode when TD is
set to INF.
Time Delay — The delay starts when reverse current is in the
trip region and has a magnitude equal or greater than the
sensitive current setting. The delay stops when the current is
less than the sensitive current setting. The relay shall also ini-
tiates an instantaneous trip when the reverse current is equal
or greater than the overcurrent setting.
Watt-Var — The relay rotates the trip region by 60° and
initiates a trip when the instantaneous reverse current is
equal or greater than the overcurrent setting.
Manual (Remote) Trip
Initiated via PowerNet by a ROBO (Remote Open Block Open)
command. The relay shall not permit any trip or close opera-
tion while the command is active. The Clear ROBO command
will allow the relay to assume normal automatic mode.
Automatic Close
The relay shall permit a closure when the phasing voltage
is in the close region and the magnitude is equal or greater
than the phasing voltage setting, ML. The close contacts shall
close within 5 cycles of phasing voltage detection. The mag-
nitude and direction of the voltage must exist for at least 30
cycles to initiate close operation.
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