GE PQMII Instruction Manual

Contents

APPENDIX APQMII POWER QUALITY METER – INSTRUCTION MANUAL A–3• STEP 1(4) DROPOUT: When the three-phase kvar value becomes less than or equal tothe value set in this setpoint the output relay assigned to the STEP will de-energize.Since over compensation is possible, the dropout value can be set to negative vars.• STEP 1(4) PICKUP DELAY: The STEP will turn on after the delay set in this setpoint haselapsed assuming all other conditions have been met.NoteThis delay setting will start counting down once the SYSTEM STABILIZATION TIME settinghas elapsed.STEP 1(4) DISABLE TIME: When STEP turns off, it is not allowed to turn back on until thetime set in this setpoint has elapsed. This allows the capacitors to discharge beforebeing re-energized again.• SYSTEM STABILIZATION TIME: When any action is performed (turning STEPS on/off orlow voltage is detected), the system must be allowed to stabilize for the time set in thissetpoint before any further actions can be performed. This time is necessary to allowthe system to stabilize without the capacitors trying to recharge• LOW VOLTAGE LEVEL: When the system voltage (average three-phase voltage)becomes equal to or less than this setpoint, all STEPS are turned off. Upon recovery(three-phase voltage is greater than this setpoint) the time set in the SYSTEMSTABILIZATION TIME setpoint must have elapsed before any actions will be performed. Ifthis feature is not required, set it to “Off”.• LOW VOLTAGE DETECT DELAY: In some cases where noise or spikes are present onthe line it may not be desirable to detect low voltage right away, therefore, thissetpoint can be used to delay the detection until voltage is definitely low.• STEP PRIORITY: The STEP PRIORITY setpoint determines the sequence the STEPS areallowed to turn on in a case where the condition may be satisfied by more than oneSTEP. Therefore, the STEP with the highest priority will be energized first. If the STEPwith highest priority is already energized, the STEP with second highest priority will beused, and so forth. The STEP priority is set from highest to lowest (left to right) whenviewing this setpoint. For example, “1,2,3,4” signifies that STEP 1 has the highestpriority and STEP 4 has the lowest priority. Note that only one STEP is allowed to turnon or off at a time.NoteEnervista PQMII setup software does not support any MODs. The settings and meteringvalues under this MOD can be accessed using the unit front panel or the Modbus analyzertools.A.1.3 Actual ValuesThe following messages have been added to the PQMII actual values structure toaccommodate this modification. The messages are located in actual values pageA2 STATUS ÖØ MOD 506 ACTUAL VALUES.