GE Industrial Solutions Voltage Conditioner SVCAA - Manual (Page 4)

GEH-6254 Installation Instructions
A communications connection is provided for
applications where data is transmitted to an external
intelligent device (See Table 1). The distribution cable
system is used to interconnect the voltage signal on the
Voltage Conditioner Assembly and the Spectra
® RMS
Molded-Case Circuit Breakers.
Table 1. Associated Software and Protocol for the different
Spectra ® Series Breakers.
Trip Unit Type Protocol Software
MicroVersaTrip ® PM Commnet GE POWER LEADER TM
microEntelliGuard TM Modbus EnerVista Viewpoint
An additional voltage output connection is available for
applications where a voltage signal is needed on an Air
Circuit Breaker or Insulated Case Circuit Breaker with an
EntelliGuard™ TU or a MicroVersaTrip
® PM Trip Unit (Do
not connect this voltage signal to a Spectra ® Trip Unit.
The voltage signal structure is different between the
MCCB and ACB/ICCB Trip Unit platforms).
NOTE: THE VOLTAGE CONDITIONER ASSEMBLY IS SIZED
FOR A MAXIMUM OF 20 BREAKERS. Use of the Voltage
Conditioner Assembly to provide voltage sensing
signals and/or +24Vdc control power to a main Air
Circuit Breaker or a main Insulated Case Breaker with a
MicroVersaTrip
® PM/Plus or EntelliGuard TM TU Trip Unit
reduces the total quantity of 20 Spectra ® RMS Molded-
Case Circuit Breakers with microEntelliGuard TM or
MicroVersaTrip ® PM/Plus Trip Units by one. The overall
maximum cabling length of the system remains 40 feet.
The Voltage Conditioner Assembly contains five
connection points. The following list contains a
description and type of connection points.
• “To Distribution Cable”
– 12-pin plug connector that mates with the 12-pin
receptacle of a Distribution Cable Harness (catalog
number SDCHA11, SDCHA30 or SDCHA60).
• “To Power Supply”
– 12-pin plug connector that mates with the 12-
pin receptacle of the Distribution Cable Harness
(catalog number SDCHA11, SDCHA30 or SDCHA60).
The other end of the harness MUST mate to either
a Power Supply Assembly (catalog number SPSAA)
or a Power Supply Plate (catalog number SPSA120,
SPSA208, SPSA240, SPSA480 OR SPSA600). Failure to
do so will result in the absence of a voltage-sensing
signal and inaccuracies in voltage dependent
informtaion / metering at Spectra
® RMS Molded-
Case Circuit Breakers with MicroVersaTrip ® PM Trip
Units and/or MicroVersaTrip ® PM Programmers in Air
Circuit Breakers or Insulated Case Circuit Breakers.
• “120Vac Input From P/T’s”
– Six-screw terminal block for connection of the
potential transformers.
• “Communications”
– Two-screw terminal block for connection to
communications network.
• “Output to ACB/ICCB”
– Three-screw terminal block for optional voltage-
sensing signal output to MicroVersaTrip ® PM or
EntelliGuard™ TU Trip Units in Air Circuit Breakers
and/or Insulated Case Circuit Breakers.
By plugging the Voltage Conditioner Plate into the
Distribution Cable System you create system wide
signals that are available to all breakers connected to
the system; a list of those functions appears in Table 2.
Table 2. Signals available on the Distribution Cable System by
connection of the Voltage Conditioner Assembly.
Spectra ® RMS
Breaker with
microEntelliGuard TM
Trip Unit
Spectra ® RMS
Breaker with
MicroVersaTrip ® PM
Trip Unit
Spectra ® RMS
Breaker with
MicroVersaTrip ®
Plus Trip Unit
control power
(+24vdc)
control power
(+24vdc)
control power
(+24vdc)
control power
(common)
control power
(common)
control power
(common)
system communication
(comm. +)
system communication
(comm. +)
system communication
(comm. -)
system communication
(comm. -)
voltage 1 (defined as
potential between Af &
N or between Af & Cf)
voltage 1 (defined as
potential between Af &
N or between Af & Cf)
voltage 2 (defined as
potential between Bf &
N or between Cf & Bf)
voltage 2 (defined as
potential between Bf &
N or between Cf & Bf)
voltage 3 (defined as
potential between Cf &
N or between Bf & Af)
voltage 3 (defined as
potential between Cf &
N or between Bf & Af)