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....
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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...
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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...
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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...
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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...
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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....
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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...
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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...
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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...
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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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