Trip Unit - GE M-PACT Plus Manual

Trip Unit

Setting Interface
LCD screen allowing access to 4 distinct menu's
Touch pad adjustments
Multilingual
Adjustable manual or automatic RESET option
Long Time or Overload Current Protection
13 current settings Ir 1, 0.95, 0.9. 0,85, 0.8, 0.75, 0.7, 0.65, 0.6, 0.55, 0.5, 0.45 & 0.4 x breaker rating In
22 thermal protection (C type) time bands available ranging from class 0.5 to 40 (bands at 7.2 x Ir)
2
22 I t protection (F type {fuse} ) time bands available
Neutral protection 0-50%-63%-100%
Possibility to switch OFF
Cooling function and thermal memory
Short Time Short-Circuit Current Protection
Setting range from 1.5 to 12 x Ir (LT setting)
Steps of 0.5 (a total of 22 settings)
Possibility to switch OFF
17 time delay settings (STDB) ranging from 30 to 940 milliseconds delay setting,
resulting in 90 to 1000 milliseconds
Clearance times to IEC 40979-1 and IEC 60364
2
3 I t protection time bands available
Instantaneous Short-Circuit Current
• Standard
Ii setting range from 2 to 15 x breaker rating In
Steps of 0.5 (a total of 28 settings)
Possibility to switch OFF
Selective execution
Fixed instantaneous or HSIOC protection
• Reduced
Ii setting range from 1.5 to 15 x Ie (primary setting)
Steps of 0.5 (a total of 29 settings)
Possibility to switch OFF
Remote and local ON and OFF with position indication signal
Ground or Earth Fault Protection
Setting range from 0.1 to 1 x In (breaker rating)
Steps of 0.01 (a total of 92 settings)
Possibility to switch OFF
14 time delay settings (GFDB) ranging from 50 to 840 milliseconds delay setting,
resulting in 110 to 900 milliseconds
Clearance times to IEC 40979-1 and IEC 60364
2
3 I t protection time bands available
4
1 I t protection time bands available
Residual principle (UEF application possible)
Source ground return principle
UEF, REF and SEF applications possible
Combinations of UEF, REF and SEF applications possible
Other Functions
Current measurement (L1, L2, L3, N)
Trip target (trip reason indication)
Trip info (magnitude / phase)
Trip counter
Event logger (trip events)
General inputs (4 available)
General relay outputs (4 available)
Relay based on current level (load shedding)
Good & bad health indicator
Watchdog
Communication 2 way
Modbus
24V DC auxiliary power supply
Test kit with power support function
(1) 24V auxiliary power supply is required.
Key
X = Present
• = Optional
- = Not possible
(1)
M-PACT Plus
MPRO-27 MPRO-50
X X
X X
X X
X X
X X
X X
- X
X X
- X
X X
X X
X X
- X
X X
X X
X X
X X
X X
X X
- X
- X
- X
- X
(1) (1)
• •
• •
• •
• •
• •
• •
• •
• •
- •
- •
- •
X X
X X
X X
X X
X X
- X
- X
- X
- X
- X
- X
(1)
- X
• •
• •
A
B
C
X
A.9