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Owner's

Manual

Please read this

manual before

operating your

Inverter

DC-AC
Inverters

PST-150S-12A
PST-150S-24A

Содержание PST-150S-12A

Страница 1: ...Owner s Manual Please read this manual before operating your Inverter DC AC Inverters PST 150S 12A PST 150S 24A...

Страница 2: ...ion and Grounding 9 10 11 Limiting Electromagnetic Interference EMI 11 Powering direct embedded SMPS 12 Principle of Operation 13 Layout 13 Specifying Batteries Chargers and Alternators 14 15 16 17 18...

Страница 3: ...s To ensure proper ventilation do not install in a low clearance compartment Preventing fire and explosion hazards Working with the inverter may produce arcs or sparks Thus the inverter should not be...

Страница 4: ...transformer isolated or auto transformer of suitable wattage rating 25 more than the wattage rating of the inverter with primary of 120 VAC and secondary of 120 240 VAC Two 120 VAC split phases 180 d...

Страница 5: ...ble for use in buildings including homes for recreational vehicles boats and portable applications Will it be connected to the utility grid in some way Electrical conventions and safety standards diff...

Страница 6: ...ter will further limit its ability to start a motor A battery bank that is undersized in poor condition or has corroded connections can be a weak link in the power chain The inverter cables and the ba...

Страница 7: ...VAC To obtain 240 VAC from a 120 VAC inverter use a 120 VAC to 240 VAC transformer If you do not already have a pump installed you can get a 120 volt pump if you don t need more than 1 2 HP Idle powe...

Страница 8: ...for resistive type of loads that have unity 1 Power Factor In a reactive type of load like electric motor driven loads fluorescent lights computers audio video equipment etc the phase of the sine wav...

Страница 9: ...wave form is a sine wave with very low harmonic distortion and clean power like utility supplied electricity Inductive loads like microwaves and motors run faster quieter and cooler Reduces audible an...

Страница 10: ...ted to earth Examples are the neutral conductor in AC wiring and the negative conductor in many DC systems A grounded system is a system in which one of the current carrying conductors is grounded An...

Страница 11: ...to the AC power source The plug of the power cord has three pins two flat pins also called poles that are connected to the two current carrying conductors and a round pin which is connected to a non...

Страница 12: ...be tight against bare metal Use star washers to penetrate paint and corrosion The inverter contains internal switching devices which generate conducted and radiated electromagnetic interference EMI T...

Страница 13: ...f up to 4 This will mean that for a particular rated RMS current applicable for a linear load the general purpose SMPS will draw much larger peak currents approx up to 4 times more than its rated RMS...

Страница 14: ...again using PWM technique This is done by using a special wave shaping technique where the high voltage DC is switched at a high frequency and the pulse width of this switching is modulated with resp...

Страница 15: ...of deep cycle lead acid batteries wet and sealed A wet cell battery has a high tolerance to overcharg ing However it will release hydrogen gas when charging that must be properly vented and the water...

Страница 16: ...is not linear but is more or less according to the table below Table 1 Battery Capacity versus Rate of Discharge Hours of Discharge Usable Capacity 20 100 10 87 8 83 6 75 5 70 3 60 2 50 1 40 Using th...

Страница 17: ...l connection of batteries When two or more batteries are connected in series their voltages add up but their AH capacity remains the same For example when two 12 V 105 AH batteries are connected in se...

Страница 18: ...by multiplying 120 VAC by the AC current in Amperes The next step is to derive the DC current in Amperes A from the AC watts as per formulae 2 above An example of this calculation for a 12V inverter i...

Страница 19: ...LI and the auxiliary deep cycle batteries the output from the alternator should be fed to these two sets of batteries through a battery isolator of appropriate capacity The battery isolator is a solid...

Страница 20: ...dry environment Do not expose to moisture rain snow or liquids of any type To reduce the risk of overheating and fire do not obstruct the suction and discharge openings of the cooling fans To ensure p...

Страница 21: ...Please observe the following precautions Ensure that the maximum charging voltage of the battery charger alternator solar charge controller is below 16 5 VDC for PST 150S 12A or 33 VDC for PST 150S 24...

Страница 22: ...2A AWG 1 0 AWG 2 0 300A ANN 300 PST 150S 24A AWG 3 AWG 2 150 A ANN 150 CAUTION The input section of the inverter has large value capacitors connected across the input terminals As soon as the DC input...

Страница 23: ...rter and this panel is also required to be powered from additional alternate AC sources the AC power from all the AC sources like the utility generator inverter should first be fed to a manual selecto...

Страница 24: ...njured burned severely shocked or electrocuted A GFCI protects people from electric shock by detecting leakage and cutting off the AC source The AC output to the 3 NEMA 5 15R receptacles is fed throug...

Страница 25: ...ircuit will still be alive even when the switch is in the off position Hence disconnect the DC and AC sides before working on any circuits connected to the inverter When the inverter is switched on th...

Страница 26: ...provided with protections detailed below Low DC input voltage warning alarm The voltage at the DC input terminals will be lower than the voltage at the battery terminals due to the voltage drop in th...

Страница 27: ...ature inside the unit will increase The temperature of a critical hot spot inside the inverter is monitored and at a particular upper limit the AC output of the inverter is shut down temporarily The r...

Страница 28: ...3 Check that all connections in the battery input circuit are tight Visibly check the fuse element if it is blown The fuses are soldered and are not easily replaceable CallTechnical Support for repair...

Страница 29: ...e load completely the unit has become defective Call Technical support 1 Check for ground fault in the load circuit A ground fault will cause a minor shock on touching Note In both the cases the unit...

Страница 30: ...be delivered to such type of loads will reduce by this factor See page 7 for details Low Input Voltage Warning Alarm 10 7 V 21 4 V Low Input Voltage Shut down 10 V 20 V High Input Voltage Shut down 1...

Страница 31: ...attempt to remedy the defect by anyone other than the Warrantor shall render this warranty void There shall be no warranty for defects or damages caused by faulty installation or hook up abuse or mis...

Страница 32: ...110 17 Fawcett Rd Coquitlam B C Canada V3K 6V2 T 604 525 3836 F 604 525 5221 e mail samlex samlexamerica com website www samlexamerica com Version PST 150S 12A_24A July2005...

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