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GE Pqm 2 Manual

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Page 101

CHAPTER 5: SETPOINTS
PQMII POWER QUALITY METER  – INSTRUCTION MANUAL5–15
metering calculations is done on top of the trace memory sampling. The harmonic analysis 
sampling (256 samples/cycles, 1 cycle) causes the trace memory sampling to stop for one 
cycle whenever a harmonic analysis is requested. Refer to 4.5.3 Trace Memory for details 
on trace memory implementation in the EnerVista PQMII Setup Software.
•TRACE MEMORY USAGE: The trace memory feature allows the user to capture 
maximum of 36 cycles....

Page 102

5–16PQMII POWER QUALITY METER  – INSTRUCTION MANUAL
CHAPTER 5: SETPOINTS
•TRACE MEMORY TRIGGER MODE: The trace memory can be conf igured to trigger in 
two different modes as described in the table below.
•Ia/Ib/Ic/In OVERCURRENT TRIG LEVEL: Once the phase A/B/C/neutral current equals 
or increases above this setpoint value, the trace memory is triggered and data on all 
inputs are captured in the buffer. The number of cycles captured depends on the value 
specif ied in the 
TRACE MEMORY USAGE setpoint...

Page 103

CHAPTER 5: SETPOINTS
PQMII POWER QUALITY METER  – INSTRUCTION MANUAL5–17
5.2.11 Programmable Message
PATH: SETPOINTS  S1 PQMII SETUP  PROGRAMMABLE MESSAGE
A 40-character message can be programmed using the keypad, or via a serial port using 
the EnerVista PQMII Setup Software. An example of writing a new message over the 
existing one is shown below:
TIPS:
• The setpoint access must be enabled in order to alter the characters.
• To skip over a character press the 
ENTER key.
• If a character is...

Page 104

5–18PQMII POWER QUALITY METER  – INSTRUCTION MANUAL
CHAPTER 5: SETPOINTS
5.2.12 Product Options
PATH: SETPOINTS  S1 PQMII SETUP  PRODUCT OPTIONS
The PQMII can have options and certain modif ications upgraded on-site via use of a 
passcode provided by GE Multilin. Consult the factory for details on the use of this feature.
 PRODUCT []
OPTIONSSELECT ORDER:
PQMII-T20-C-ARange: see range in PQMII Modbus 
memory format code F116
MESSAGESELECT MOD1 TO
ENABLE: 0Range: 0 to 999 in steps of 1
MESSAGESELECT...

Page 105

CHAPTER 5: SETPOINTS
PQMII POWER QUALITY METER  – INSTRUCTION MANUAL5–19
5.3 S2 System Setup
5.3.1 Current and Voltage Conf iguration
NoteThe shaded setpoints below must be set to a value other than “Off ” to clear the Critical 
Setpoints Not Stored alarm.
PATH: SETPOINTS  S2 SYSTEM SETUP  CURRENT/VOLTAGE CONFIG.
•PHASE CT WIRING: The table below indicates the required connection per setpoint 
setting.
If the “A and B Only”, “A and C Only”, or “A Only” connection is selected, the neutral 
sensing must...

Page 106

5–20PQMII POWER QUALITY METER  – INSTRUCTION MANUAL
CHAPTER 5: SETPOINTS
precaution until a valid CT value is entered. Ensure that the CT is connected to the 
correct 1 or 5 A terminals to match the CT secondary.
•NEUTRAL CURRENT SENSING: Neutral current sensing can be accomplished by using 
a separate external CT connection or by calculations. Select “Separate CT” when using 
an external CT. If “Calculated” is selected, the PQMII calculates the neutral current 
using the vector sum of Ia + Ib + Ic = In....

Page 107

CHAPTER 5: SETPOINTS
PQMII POWER QUALITY METER  – INSTRUCTION MANUAL5–21
this message. This value will be used to scale an analog output that is assigned to 
display voltage as a percentage of nominal.
•NOMINAL SYSTEM FREQUENCY: Enter the nominal system frequency. The PQMII 
measures frequency from the Van voltage and adjusts its internal sampling to best f it 
the measured frequency. If the Van input is unavailable, the PQMII will assume the 
frequency entered here.
5.3.2 Analog Outputs
PATH: SETPOINTS...

Page 108

5–22PQMII POWER QUALITY METER  – INSTRUCTION MANUAL
CHAPTER 5: SETPOINTS
analog output effectively gives the PQMII eight analog outputs. The table below shows 
the criteria used by the PQMII to decide whether the output is based on MAIN or ALT 
settings.
•MAIN/ALT 4 mA VALUE: This message appears for each analog output and allows the 
user to assign a numeric value which corresponds to the 4 mA end of the 4 to 20 mA 
signal range (T20 option) or the 0 mA end of the 0 to 1 mA signal range (T1 option). The...

Page 109

CHAPTER 5: SETPOINTS
PQMII POWER QUALITY METER  – INSTRUCTION MANUAL5–23
Table 5–4: Analog Output Parameters (Sheet 1 of 2)
Parameter Range Step
Phase A Current 0 to 150% 1%
Phase B Current 0 to 150% 1%
Phase C Current 0 to 150% 1%
Neutral Current 0 to 150% 1%
Average Phase Current 0 to 150% 1%
Current Unbalance 0 to 100.0% 0.1%
Voltage Van 0 to 200% 1%
Voltage Vbn 0 to 200% 1%
Voltage Vcn 0 to 200% 1%
Voltage Vab 0 to 200% 1%
Voltage Vbc 0 to 200% 1%
Voltage Vca 0 to 200% 1%
Average Phase Voltage 0 to...

Page 110

5–24PQMII POWER QUALITY METER  – INSTRUCTION MANUAL
CHAPTER 5: SETPOINTS
Phase B kVA 0 to 65400 1 kVA
Phase C PF 0.01 lead to 0.01 lag 0.01
Phase C kW –32500 to +32500 1 kW
Phase C kvar –32500 to +32500 1 kvar
Phase C kVA 0 to 65400 1 kVA
3 Phase +kWh Used 0 to 65400 1 kWh
3 Phase +kvarh Used 0 to 65400 1 kvarh
3 Phase –kWh Used 0 to 65400 1 kWh
3 Phase –kvarh Used 0 to 65400 1 kvarh
3 Phase kVAh Used 0 to 65400 1 kVAh
Phase A Current Demand 0 to 7500 1 A
Phase B Current Demand 0 to 7500 1 A
Phase C...
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