GE Pqm 2 Manual

							PQMII POWER QUALITY METER  – INSTRUCTION MANUAL2–1
PQMII Power Quality Meter
Chapter 2: Installation
Digital Energy
In stal lation
2.1 Physical Conf iguration
2.1.1 Mounting
Physical dimensions and required cutout dimensions for the PQMII are shown below. Once 
the cutout and mounting holes are made in the panel, use the eight #6 self-tapping screws 
provided to secure the PQMII. Mount the unit on a panel or switchgear door to allow 
operator access to the keypad and indicators.
FIGURE 2–1: Physical Dimensions 
						

							2–2PQMII POWER QUALITY METER  – INSTRUCTION MANUAL
CHAPTER 2: INSTALLATION
2.1.2 Product Identif ication
Product attributes vary according to the conf iguration and options selected on the 
customer order. Before applying power to the PQMII, examine the label on the back and 
ensure the correct options are installed.
The following section explains the information included on the label shown below:
FIGURE 2–2: Product Label
•Model No: Shows the PQMII conf iguration. The model number for a basic panel 
mount PQMII is “PQMII”. T20, C, and A appear in the model number only if the 
Transducer, Control, or Power Analysis options are installed.
•Supply Voltage: Indicates the power supply input conf iguration installed in the 
PQMII. The PQMII shown in this example can accept any AC 50/60Hz voltage from 
70 to 265 V AC or DC voltage from 90 to 300 V DC.
•Tag#: An optional identif ication number specif ied by the customer.
•Mod#: Indicates if any unique features have been installed for special customer 
orders. This number should be available when contacting GE Multilin for technical 
support .
•Version: An internal GE Multilin number that should be available when contacting 
us for technical support .
•Serial No.: Indicates the serial number in numeric and barcode formats. Record 
this number when contacting GE Multilin for technical support .
2.1.3 Manual and Firmware Revisions
Each instruction manual revision corresponds to a particular f irmware revision. The 
manual revision is located on the title page as part of the manual part number (the format 
is 1601-nnnn-
revision). The f irmware revision is located on that same page, just above the 
manual part number,  and is also loaded in the PQMII, where it can be viewed by scrolling 
to the 
A4 PRODUCT INFO  SOFTWARE VERSIONS  MAIN PROGRAM VERSION message.
When using the instruction manual to determine PQMII features and settings, ensure that 
the instruction manual revision corresponds to the f irmware revision installed in the PQMII.
20 19 18
17 16
15
14 13 12
11 10
9
MAXIMUM CONTACT RATING
250 VAC 10A RESISTIVE
1/4HP 250VAC 1/2HP 125VAC
PQM II
             MODEL NO.:
CONTROL VOLTAGE: SERIAL No.:VERSION:
CUSTOMER TAG No.: 1234-567-89
90-300VDC 20VA
70-265VAC 50/60HZ 20VA
100.000
C7360001
PQMII-T20-C-A
MADE IN
CANADA
g 
						

							CHAPTER 2: INSTALLATION
PQMII POWER QUALITY METER  – INSTRUCTION MANUAL2–3
2.2 Electrical Conf iguration
2.2.1 External Connections
Signal wiring is to Terminals 21 to 51. These terminals accommodate wires sizes up to 12 
gauge. Please note that the maximum torque that can be applied to terminals 21 to 51 is 
0.5 Nm (or 4.4 in ·lb.). CT, VT, and control power connections are made using Terminals 1 to 
20. These #8 screw ring terminals accept wire sizes as large as 8 gauge. Consult the wiring 
diagrams for suggested wiring. A minimal conf iguration includes connections for control 
power, phase CTs/VTs, and the alarm relay; other features can be wired as required. 
Considerations for wiring each feature are given in the sections that follow.
Table 2–1: PQMII External Connections
Terminal Description Terminal Description
VT / Control Power Row (1 to 8)
25 Analog out 4+
1 V1 Voltage input 26 Analog out 3+
2 V2 Voltage input 27 Analog out 2+
3 V3 Voltage input 28 Analog out 1+
4 Vn Voltage input 29 Switch 4 input
5 Filter ground 30 Switch 3 input
6 Safety ground 31 Switch 2 input
7 Control neutral (–) 32 Switch 1 input
8 Control live (+) 33 +24 V DC switch com
CT Row (9 to 20)34 Aux3 relay NC
9 Phase A CT 5A 35 Aux3 relay COM
10 Phase A CT 1A 36 Aux3 relay NO
11 Phase A CT COM 37 Aux2 relay NC
12 Phase B CT 5A 38 Aux2 relay COM
13 Phase B CT 1A 39 Aux2 relay NO
14 Phase B CT COM 40 Aux1 relay NC
15 Phase C CT 5A 41 Aux1 relay COM
16 Phase C CT 1A 42 Aux1 relay NO
17 Phase C CT COM 43 Alarm relay NC
18 Neutral CT 5A 44 Alarm relay COM
19 Neutral CT 1A 45 Alarm relay NO
20 Neutral CT COM 46 Comm 1 COM  
						

							2–4PQMII POWER QUALITY METER  – INSTRUCTION MANUAL
CHAPTER 2: INSTALLATION
Signal Upper Row (21 to 51)47 Comm 1 –
21 Analog shield 48 Comm 1 + 
22 Analog in – 49 Comm 2 COM 
23 Analog in + 50 Comm 2 –
24 Analog out com 51 Comm 2 + Table 2–1: PQMII External Connections
Terminal Description Terminal Description 
						

							CHAPTER 2: INSTALLATION
PQMII POWER QUALITY METER  – INSTRUCTION MANUAL2–5
2.2.2 Wiring Diagrams
This wiring diagram below shows the typical 4-wire wye connection which will cover any 
voltage range. Select the 
S2 SYSTEM SETUP  CURRENT/VOLTAGE CONFIGURATION  VT 
WIRING: 
“4 Wire Wye (3 VTs)” setpoint
.
FIGURE 2–3: Wiring Diagram 4-wire Wye (3 VTs) 
						

							2–6PQMII POWER QUALITY METER  – INSTRUCTION MANUAL
CHAPTER 2: INSTALLATION
The 2½ element 4-wire wye connection can be used for situations where cost or size 
restrictions limit the number of VTs to two. With this connection, Phase Vbn voltage is 
calculated using the two existing voltages. Select the 
S2 SYSTEM SETUP  CURRENT/VOLTAGE 
CONFIGURATION  VT WIRING: 
“4 WIRE WYE (2 VTs)” setpoint .
This wiring conf iguration will only provide accurate power measurements if the voltages 
are balanced. 
						

							CHAPTER 2: INSTALLATION
PQMII POWER QUALITY METER  – INSTRUCTION MANUAL2–7
FIGURE 2–4: Wiring Diagram 4-wire Wye (2 VTs)
Four-wire systems with voltages 347 V L-N or less can be directly connected to the PQMII 
without VTs. Select the 
S2 SYSTEM SETUP  CURRENT/VOLTAGE CONFIGURATION  VT WIRING: “4 
WIRE WYE DIRECT”
 setpoint . 
						

							2–8PQMII POWER QUALITY METER  – INSTRUCTION MANUAL
CHAPTER 2: INSTALLATION
The PQMII voltage inputs should be directly connected using HRC fuses rated at 2 A to 
ensure adequate interrupting capacity.
FIGURE 2–5: Wiring Diagram 4-wire Wye Direct (No VTs) 
						

							CHAPTER 2: INSTALLATION
PQMII POWER QUALITY METER  – INSTRUCTION MANUAL2–9
This diagram shows the typical 3-wire delta connection which will cover any voltage range. 
Select the 
S2 SYSTEM SETUP  CURRENT/VOLTAGE CONFIGURATION  VT WIRING: “3 WIRE DELTA (2 
VTs)”
 setpoint .
FIGURE 2–6: Wiring Diagram 3-wire Delta (2 VTs) 
						

							2–10PQMII POWER QUALITY METER  – INSTRUCTION MANUAL
CHAPTER 2: INSTALLATION
Three-wire systems with voltages 600 V (L-L) or less can be directly connected to the PQMII 
without VTs. Select the 
S2 SYSTEM SETUP  CURRENT/VOLTAGE CONFIGURATION  VT WIRING: “3 
WIRE DIRECT”
 setpoint .
The PQMII voltage inputs should be directly connected using HRC fuses rated at 2 amps to 
ensure adequate interrupting capacity.
FIGURE 2–7: Wiring Diagram 3-wire Direct (No VTs)