GE Pqm 2 Manual

CHAPTER 6: MONITORING
PQMII POWER QUALITY METER  – INSTRUCTION MANUAL6–21
To assist in troubleshooting, the state of each switch can be verif ied using these messages. 
A separate message displays the status of each input identif ied by the corresponding 
name as shown in the wiring diagrams in chapter 2. For a dry contact closure across the 
corresponding switch terminals the message will read “Closed”.
6.3.3 Clock
PATH: ACTUAL VALUES  A2 STATUS  CLOCK
The current time and date is displayed in this...

6–22PQMII POWER QUALITY METER  – INSTRUCTION MANUAL
CHAPTER 6: MONITORING
6.4 A3 Power Analysis
6.4.1 Power Quality
PATH: ACTUAL VALUES  A3 POWER ANALYSIS  POWER QUALITY VALUES
•Ia/Ib/Ic CREST FACTOR: The crest factor describes how much the load current can 
vary from a pure sine wave while maintaining the system’s full rating. A completely 
linear load (pure sine wave) has a crest factor of   (1 /0.707), which is the ratio of the 
peak value of sine wave to its RMS value. Typically, the crest factor...

CHAPTER 6: MONITORING
PQMII POWER QUALITY METER  – INSTRUCTION MANUAL6–23
•PHASE A/B/C/N CURRENT THD: These messages display the calculated total 
harmonic distortion for each current input .
•VOLTAGE Van/Vbn/Vcn/Vab/Vbc THD: These messages display the calculated total 
harmonic distortion for each voltage input . Phase-to-neutral voltages will appear 
when the setpoint 
S2 SYSTEM SETUP  CURRENT/VOLTAGE CONFIGURATION  VT WIRING is set 
as “Wye”. Line-to-line voltages will appear when 
VT WIRING is...

6–24PQMII POWER QUALITY METER  – INSTRUCTION MANUAL
CHAPTER 6: MONITORING
•Van/Vbn/Vcn/Vab/Vbc MAX THD: These messages display the maximum total 
harmonic value for each voltage input and the time and date of its occurrence. The 
setpoint 
S1 PQMII SETUP  CLEAR DATA \CLEAR MAX THD VALUES is used to clear this value. 
Phase to neutral voltages will appear when the setpoint 
S2 SYSTEM SETUP  CURRENT/
VOLTAGE CONFIGURATION  VT WIRING
 is set to “Wye”. Line to line voltages will appear 
when 
VT...

CHAPTER 6: MONITORING
PQMII POWER QUALITY METER  – INSTRUCTION MANUAL6–25
Table 6–1: List of Possible Events (Sheet 1 of 4)
Displayed Event Name Event Description
3Φ +kvar DMD ↑Positive Reactive Power Demand Alarm/Control Pickup
3Φ +kvar DMD ↓Positive Reactive Power Demand Alarm/Control Dropout
3Φ +kW DMD ↑Positive Real Power Demand Alarm/Control Pickup
3Φ +kW DMD ↓Positive Real Power Demand Alarm/Control Dropout
3Φ kVA DEMAND ↑Apparent Power Demand Alarm/Control Pickup
3Φ kVA DEMAND ↓Apparent Power...

6–26PQMII POWER QUALITY METER  – INSTRUCTION MANUAL
CHAPTER 6: MONITORING
Ia DEMAND ↓Phase A Current Demand Alarm/Control Dropout
Ib DEMAND ↑Phase B Current Demand Alarm/Control Pickup
Ib DEMAND ↓Phase B Current Demand Alarm/Control Dropout
Ic DEMAND ↑Phase C Current Demand Alarm/Control Pickup
Ic DEMAND ↓Phase C Current Demand Alarm/Control Dropout
In DEMAND ↑Neutral Current Demand Alarm/Control Pickup
In DEMAND ↓Neutral Current Demand Alarm/Control Dropout
NEG kvar ↑Negative Reactive Power...

CHAPTER 6: MONITORING
PQMII POWER QUALITY METER  – INSTRUCTION MANUAL6–27
POS kvar ↑Positive Reactive Power Alarm/Control Pickup
POS kvar ↓Positive Reactive Power Alarm/Control Dropout
POS kW ↑Positive Real Power Alarm/Control Pickup
POS kW ↓Positive Real Power Alarm/Control Dropout
POWER OFF Power Off
POWER ON Power On
PROGRAM ENABLE Setpoint Access On
PULSE IN 1 ↑Pulse Input 1 Alarm/Control Pickup
PULSE IN 1 ↓Pulse Input 1 Alarm/Control Dropout
PULSE IN 2 ↑Pulse Input 2 Alarm/Control Pickup
PULSE IN 2...

6–28PQMII POWER QUALITY METER  – INSTRUCTION MANUAL
CHAPTER 6: MONITORING
6.4.5 Voltage Disturbance
Main Menu
PATH: ACTUAL VALUES  A3 POWER ANALYSIS  VOLTAGE DIST. RECORDER
The Voltage Disturbance Recorder runs continuously and records the source, level and 
duration of each voltage disturbance. Up to 500 disturbances are recorded in a circular 
buffer. When over 500 disturbances are recorded, data for older disturbances are lost as 
new disturbances are recorded. Additionally, since the events are...

CHAPTER 6: MONITORING
PQMII POWER QUALITY METER  – INSTRUCTION MANUAL6–29
The duration and average level are recorded in sub-menus as shown below.
Sub-Menus
PATH: ACTUAL VALUES  A3 POWER ANALYSIS  VOLTAGE DIST...  1(500): 
The DURATION is the length of time of the disturbance. If the disturbance is either a sag or a 
swell the duration will be recorded in cycles with a maximum possible value of 1 minute 
(3600 cycles at 60Hz).
The 
VOLTAGE LEVEL represents the average level in volts for the...

6–30PQMII POWER QUALITY METER  – INSTRUCTION MANUAL
CHAPTER 6: MONITORING
6.5 A4 Product Info
6.5.1 Software Versions
PATH: ACTUAL VALUES  A4 PRODUCT INFO  SOFTWARE VERSIONS
Product software revision information is contained in these messages.
•MAIN PROGRAM VERSION: When referring to documentation or requesting technical 
assistance from the factory, record the 
MAIN PROGRAM VERSION. This value identif ies 
the f irmware installed internally in the flash memory. The title page of this instruction...