Samlexpower PST-1500-12 Owner's Manual - Section 10 |
40 | SAMLEX AMERICA INC.
SAMLEX AMERICA INC. | 41
9.5 NO LOAD DRAW (IDLE CURRENT)
When the ON/Off Switch(1,Fig6.1)isturnedON,allthecircuitryinsidetheinverter
becomes alive and the AC output is made available. In this condition, even when no
load is being supplied (or, if a load is connected but has been switched Off), the inverter
drawsasmallamountofcurrentfromthebatteriestokeepthecircuitryaliveandready
to deliver the required power on demand. This is called the "Idle Current" or the "No
LoadDraw".Hence,whentheloadisnotrequiredtobeoperated,turnOff the ON/Off
switch(1,Fig6.1)ontheinvertertopreventunnecessarycurrentdrainfromthebattery.
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INFO
When the inverter is turned Off using the optional Remote Control RC-200,
some control circuitry in the inverter is still alive and will draw very low current.
Therefore, to prevent any drain from the battery, switch Off the inverter from
theON/OFFswitch(1,Fig6.1)providedonthefrontpaneloftheinverter.
Section 10 |
Protections
10. PROTECTIONS
The inverter has been provided with protections detailed below:
10.1 POWER SURGE / OVERLOAD / SHORT CIRCUIT SHUT DOWN
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INFO
Please refer to definitions of Active Power (Watts), Apparent Power (VA) and
PowerFactor(PF)atSection2.1.Intheexplanationbelow,thevaluesofPower
areexpressedinApparentPowerinVA.CorrespondingActivePower(Watts,W)
will depend upon the type of load (Resistive or Reactive) and its Power factor
(Power factor may range from 1 to 0.5). Please note the following:
• ActivePower(Watts)=ApparentPower(VA)xPowerFactor(PF).
• Forresistivetypeofloads,thePowerFactor=1andhence,ApparentPower
(VA) = Active Power (Watts, W)
• Forreactivetypesofloads,thePowerFactorwillbe<1(upto0.5)andhence,
the Active Power (Watts, W) will be less than the Apparent Power (VA)
The AC output voltage will shut down due to overload and short circuit conditions as follows:
Power Surge Condition: WhentheACoutputcurrenttriestoexceedaround175%of
the rated output current for PST-2000 or, 200% of the rated output current for PST-1500,
output current limiting is carried out instantly resulting in drop in the AC output voltage