1-3 Trip Unit Functions; 1-4 Trip Unit Catalog Numbers; Breaker Type Referred To By First Character Of Trip Unit Catalog Number - GE MicroVersaTrip Plus User Manual

MicroVersaTrip Plus™ and MicroVersaTrip PM™ Trip Units

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
• Metering display
– Phase current (selectable among phases)
The optional functions available on both types of
Trip Unit are as follows:
• High-range (fixed) instantaneous overcurrent
protection
• Short-time protection, with or without I
• Ground-fault protection, with or without I
• Defeatable ground fault, with or without I
• 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 E A 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)
• Protective relaying
N N N N O O O O T T T T E E E E : : : : MicroVersaTrip PM style Trip Units require
external +24 Vdc control power.
N N N N O O O O T T T T E E E E : : : : Le déclencheur de type MicroVersaTrip PM
necessite l'utilisation d'une alimentation extérieure
24 Vcc.

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,
2
T
Appendix 2 for RMS9C Trip Units in Power Break®
2
T
breakers, and in Appendix 3 for RMS9D Trip Units
2
in Power Break® II breakers. A208LIPMR is an
T
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 1. Breaker type referred to by first character of Trip Unit
with POWER
n e t w o r k
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
– Frequency (Hz)
– Undervoltage
– Overvoltage
– Voltage unbalance
– Current unbalance
– Power reversal
C C C C h h h h a a a a r r r r a a a a c c c c t t t t e e e e r r r r B B B B r r r r e e e e a a a a k k k k e e e e r r r r T T T T y y y y p p p p e e e e
A AKR
B Power Break II
C Power Break
catalog number.
Chapter 1. Introduction
T T T T r r r r i i i i p p p p U U U U n n n n i i i i t t t t
RMS9C
RMS9D
RMS9C