1-3 Trip Unit Functions; 1-4 Trip Unit Catalog Numbers - GE MicroVersaTrip Plus Series User Manual

1-3 Trip Unit Functions

MicroVersaTrip Plus and MicroVersaTrip PM Trip
Units have specific standard and optional functions.
All Trip Units share a series of interchangeable
rating plugs. The standard functions for both types
of Trip Unit are as follows:
Protection
•
- Long-time protection
- Instantaneous protection
Status
•
- Trip target (trip type)
- Trip information (magnitude and phase)
- Trip operations counters
Meteri � g display
•
- Phase current (selectable among phases)
The optional functions available on both types of
as
Trip Unit are follows:
High-range (fixed) instantaneous overcurrent
•
protection
Short-time protection, with or without I 2 T
•
Ground-fault protection, with or without I 2 T
•
Defeatable ground fault, with or without I 2 T
•
Zone-selective interlock, with ground fault only
•
or with both ground fault and short time
protection
Additional optional functions available only with
MicroVersaTrip PM Trip Units are as follows:
Available configurations
•
- Communication and metering
- Communication and protective relaying
- Communication, metering, and protective
relaying
Remote communication
•
L EA D E R™ c o m m u n i c a t i o n s
(commnet)
Metering functions
•
- Voltage (V)
- Energy (kWh/MWh/GWh)
- Total real power (kW /MW)
- Total apparent power (kVA/MVA)
- Demand power (kW /MW)
- Peak demand power (kW/MW)
- Frequency (Hz)
•
- Undervoltage
- Overvoltage
- Voltage unbalance
- Current unbalance
- Power reversal
NOTE:
external +24 Vdc control power.
NOTE:
necessite !'utilisation d'une alimentation exterieure
24 Vee.

1-4 Trip Unit Catalog Numbers

A simple catalog-numbering system defines all of the
standard and optional Trip Unit functions for each
of the two series of Trip Units. Catalog number keys
are found in Appendix 1 for AKR breakers,
Appendix 2 for RMS9C Trip Units in Power Break®
breakers, and in Appendix 3 for RMS9D Trip Units
in Power Break® II breakers. A208LIPMR is an
example of a valid catalog number.
The first character of each catalog number defines
the type of breaker for which it is configured, as
listed in Table 1 .
Table
with POWER
network
The second character of the catalog number indi­
cates the highest rated phase current transformer
( CT) sensor allowed for that breaker frame, as listed
in Table 2.
3
Protective relaying
MicroVersaTrip PM style Trip Units require
Le declencheur de type MicroVersaTrip PM
Character Breaker Type
A
AKR
B Power Break II
c Power Break
1. Breaker type referred to by first character of Trip Unit
catalog number.
1. Introduction
Trip Unit
RMS9C
RMS9D
RMS9C