Applications - GE Multilin PQM Instruction Manual

CHAPTER 1: OVERVIEW
1.1.3

Applications

PQM POWER QUALITY METER – INSTRUCTION MANUAL
Courtesy of NationalSwitchgear.com
CT INPUTS:
3 isolated phase CT inputs
1 isolated neutral CT input
1 Amp or 5 Amp secondary
VT INPUTS:
0-600V, 3 wire or 4 wire voltage inputs.
Direct (up to 600V) or VT (>600V for
isolation) connections.
FIGURE 1–2: PQM Feature Highlights - 2
• Metering of distribution feeders, transformers, generators, capacitor banks, and
motors
• Medium and low voltage three-phase systems
• Commercial, industrial, utility
• Flexible control for demand load shedding, power factor, etc.
• Power quality analysis
• System debugging
AC/DC CONTROL POWER
Universal control power
90-300 VDC
70-265 VAC
GROUND:
Separate safety and filter ground
All inputs meet C37.90 and IEC 801-2
EMI, SWC, RFI interference immunity.
INTRODUCTION
ANALOG INPUT
Accept 4-20mA analog inputs for transducer
interface.
ANALOG OUTPUTS
4 isolated 0-1mA or 4-20 mA outputs replace
8 transducers. Programmable including:
A, V, W, var, VA, Wh varh, PF, Hz
SWITCH INPUTS
}
A Programmable for relay activation,
B counters, logic, demand synchronization,
C setpoint access, alarm position
D
4 OUTPUT RELAYS
}
ALARM Programmable alarm conditions
AUX1 actuated by programmable
AUX2 setpoints, switch inputs, remote
AUX3 communication control.
COMMUNICATIONS
®
Dual RS485 comm ports Modbus protocol.
COM1 Continuous monitoring/control via
SCADA system rear (RS485).
COM2/3 Front (RS232) or rear (RS485) access
allows simultaneous communication
via a PC or for redundant comms.
PROGRAM UPDATING
Flash memory storage of firmware for field
updating via communications port. Enables
product updating on-site for latest features.
FUSE ACCESS
Control power fuse accessible under sliding
door.
COMPACT DESIGN
Panel mount replaces many discrete
components with one standard model.
823755AL.CDR
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