INVERTER FAQ

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1.Q:Can customer use Generator as AC source to connect with inverter?

A: .As we know, generator always supplies unstable power and surge power of generator is very big. 

     So, we don’t suggest customer to use generator as AC source.

2.Q: Please kindly recommend solar system to us.

A: We need to know following information and then can recommend suitable solar system for you:

    1) Please kindly advice if you need stand-alone solar system or grid-tied solar system.

    2) Total wattage of your appliances

    3) How many hours a day you will run your appliances

    4) Do you have mains power? How long the mains power will supply?

    5) The daytime for sunshine

    6) Will you use a generator with your solar system? If so, please kindly give us the spec. of your generator. 

3.Q: Why we can’t use Modified Sine Wave Inverter to run FLUORESCENT LAMPS?

A: Because the fluorescent lamp with power factor capacitor, the main function for power factor capacitor of fluorescent

    lamp is to enhance the AC power efficiency in Pure sine Wave inverter, not Modified Sine Wave Inverter. So it will

    cause the opposite effect if customer uses our modified sine wave inverter to supply power to fluorescent lamp.

    Furthermore, it will cause the high voltage MOS.of our Modified Sine Wave Inverter get a short cut.

4. Q: Can we connect two same specification inverters to increase the output power wattage?

A: Normally, the inverter is not a stackable inverter. Customer cant connect two inverters in parallel for double the

    output power. 

    This inverter only can use separately.If customer need a stackable inverter, please visit our website

    (www.kipoint.com.tw) to find our SI stackable inverter. 

5 Q: For PLC and PSLC series inverter, the description says: Multi-stage charger supports batteries up to 600AH.

       If I have battery more than 600AH,can we use it?

A: Although the max.charging current is set at 600amp hours. However, customer still can use our inverter with built in

    battery charger to charge more than 600AH batteries bank.

    The difference is that it will take more time to charge more than 600AH batteries bank by our inverter with built in

    battery charger. 

    For example, customer uses our inverter with built in 50 amp battery charger to charge 600 AH battery or 1200 AH

    battery. 

    The charge time as below.

    1) 600AH battery divide 50 amps battery charger: it will take about 12 hours or charge battery.

    2) 1200AH battery divide 50 amps battery charger: it will take about 24 hours or charge battery.

6.Q: Can we use external battery charger or solar controller to combine inverter with built in battery charger or 

       solar controller for charging battery?

A: Customer can’t use external battery charger or solar controller to combine our inverter with built in battery charger 

    or solar controller for charging battery because the charging current and voltage of each charger all different. 

    It will cause inverter get damaged if customer combine to use.

7.Q: Can we use battery charger to charge Gel or AGM battery?

A: Yes, for Gel and AGM battery all belong to Lead Acid battery. So our battery charger can suitable no problem. 

8.Q: What is HZ ?

A: It means Output Frequency, It forms several waveforms in each second, or it makes several time same movement in

    each second.

9. Q: What is difference of CC and EC series Inverter?

A: The function of CC and EC series Inverter are almost the same .The difference as below.

     CC series: LCD display.

     EC series: LED display.

10. Q: What is difference of CC and PLC series inverter?

A: PLC series: applicable for any kind of loads such as air conditioner, home appliances, consumer electronic

    and office equipments.

    CC series: applicable for any kind of loads such as home appliances, consumer electronic and

    office equipments.

 The difference of PLC model and CC model is for the inside design of transformer, the size of built in battery

 charger and the transfer time is also different.

 The max built in battery charger for PLC series inverter is 60 amp.

 The max built in battery charger for CC series inverter is 35 amp.

 The transfer time of PLC series inverter: AC—>DC < 8ms.

 The transfer time of CC series as below:

 Blackout 3ms typical

 Brownout 1ms typical

 Battery mode to Normal mode1ms typical

 So if customer want to use inverter to connect with computer for operation, once AC mains power fails,

 it needs to take very short transfer time to transfer it from AC to DC battery for back up. Then well suggest

 that customer use CC models because CC models with short transfer time. 

11.Q: What is difference of L and H series inverter?

A: L series and H series is pure sine wave inverter only. Due to there is no built in battery charger with these inverter 

    so L and H series don’t have charger function.

    The difference for L and H series inverter as below:

    L series inverter with low frequency transformer and it is suitable for sensitive equipment.

    H series inverter with high frequency transformer and it is for normal use. But H series inverter is with one more

    by pass function. 

    H series inverter can be connected with AC mains power on the input. When AC mains power is normal, the inverter

    will by pass 

    AC power to the load. When AC power is cut, it will transfer to get power from batteries. But H series inverter doesnt

    have a charger

    function. So, if your battery is no power when AC power is cut, the inverter will be shut off. Hope you can understand

    our explanation.

12.Q: Can we use inverter as UPS function? (base on the item of inverter with build in battery charger)

A:  Yes, this inverter can supply as UPS. When customer use AC mains power to connect with inverter, the inverter 

     with build in battery charger will charge battery and by pass power to the load at the same time. 

     Once AC mains power fails or cut off, it will transfer DC battery power from inverter to the load used.

13.Q: Can we use inverter as UPS function? (Base on the item of inverter with build in battery charger and

         solar controller)

A: Yes, this inverter with built in battery charger and solar controller. At daytime, you can connect solar panel into this

    inverter directly. 

    The built-in solar controller will charge the batteries by solar panel and supply battery power from inverter to the load. 

    Besides customer can use AC mains power to connect with inverter, the inverter with build in battery charger will

    charge battery and 

    by pass power to the load at the same time. Once AC mains power fails or cut off, it will transfer DC battery power

    from inverter to the load used. Customer can use battery as a back up in the evening.

14.Q: Can this inverter can split it into 2-120 lines or use as 3 phase inverter?

A: Most of our inverters are single-phase inverter, it can’t split into 2-120 lines or use as 3 phase inverter.

15.Q: Will the battery charger auto to shut down when battery is full charged?

A : For our charger wont auto to shutdown while LED turn to fully charged. Its also not necessary.

     This is because lead acid type battery with nature self-discharged feature.

     So, once LED turn to fully charged, the charger will transfer its mode from bulk to float.

     And has lower voltage to charge.This is to compensation battery purpose. Its safe even leave charger on for months

16.Q:For SLC and LC series inverter, the inverter with built in 40 amp or 50 amp or 60 amp battery charger,

        how we can get the max charge current?

A: The max charging current is 40 amps or 50 amps or 60 amps, but this is not continuous charge current.

    Moreover, the max charge current will be only achieved in the condition of the battery is out of electricity

    and also depends on the distance of DC battery cable between battery and inverter.

17.Q: What is Solar grid-tied system?

A: Solar Grid Tie System or Grid Connected System is connected to utility grid and feeds power back into the grid.

    The system consists of PV panel connected to grid tie inverter. The power produced by the PV system can be either

    supplied to loads or fed back into grid when the PV system output is greater than the load demand. When the PV

    system output is less than the load demand (e.g. at night), energy will be consumed from the utility grid.

    Solar grid tie system varies in size from residential to solar power stations.

    Keep this in mind: A grid-tie system do not have battery to store the energy and they must installed where the grid line

    reachable areas.

    Solar Grid-tie systems usually have not battery device to store power. Thus the costs of establishment and maintain

    are lower than these stand alone systems.The electrical power generates during sunny days to save power from public

    utilities and sometime resell to Power Company. At night and cloudy, rainy days, the electrical power still comes from

    Power Company.

18.Q: What is Solar stand-alone system?

A: Stand-alone systems are not connected to the grid. Off-Grid systems (standalone) use a photovoltaic system to

    supply electricity to a consumer unit directly or via a battery, independently of other energy sources.

    Stand-alone Solar Power SystemStand-alone PV System or Off-grid Power System operates independent

    of the electric utility grid (off-grid) and most often uses in remote areas where the utility grid is not available or

    where the connection fees of the grid are higher than the cost of an alternative energy system. The generated

    DC power needs to be stored in battery and converted to AC power for supplying to AC loads. 

    Stand-alone Solar Power System suits to use for remote village electrification or rural electrification 

    to provide continuous reliable power at remote locations.  

    Stand-alone solar system is suitable for any areas where utility power line is not available.

    This system requires a charge controller to charge storage batteries for discharge to run electrical appliances.

    Stand-alone inverter systems consists of a standard Solar Home System with solar module, battery and solar

    charge controller, plus an additional inverter that supplies AC power.

19.Q:Who will pay import duty?

A: All our products and shipping cost do not included VAT. Regarding import duty, sometimes customs will

    inspect the parcel but sometimes will not.  So, we cant know how much the customs will charge for

    the inverter.Normally, we will send the product as gift or sample and put lower value on invoice to help

    customer avoid the import duty. We will do the same way for you. 

    If you have any special request about the invoice value, please kindly advise us in advance.

20.Q:Can we use inverter on appliance with induction motor,such as air condition or pump?

A: As some appliances and tools with induction motors may require from 3 to 7 times the continuous wattage when

    starting. 

    The start-up load of the appliance or tool determines whether an inverter has the capability to power it. 

    Be sure to check the specific wattage requirements and operating instructions for appliances / tools to be used. 

    So, please make sure the continuous power wattage and surge power wattage of your appliances are not over

    our inverters request. 

    For Example, if your air condition indicated an output of 1200 Watt, the starting current can be up to 7 times. 

    This would mean, that you must select a Power Inverter, which can accept a short term maximum performance

    of 8400 Watt.

    Please absolutely pay attention to this important factor and order none to weak Inverter for your equipment

    because it could damage the inverter and your appliance !

21.Q:For Stand-Alone Solar System, Why the solar panel power is not enough for the whole system?

         For example KI-SA-2400,this is 2400W solar system, why only supply with 195W x 6 pcs

         solar panel (about 1170W)?Why can’t supply 2400W solar panel with 2400W solar system?

A: Please kindly don’t confuse Stand-Alone Solar System with Grid-Tied Solar System.

 Grid Tie Solar System is connected to utility grid and feeds power back into the grid.

 The system consists of PV panel connected to grid tie inverter. The power produced by the PV system

 can be either supplied to loads or fed back into grid.

 Customer can complete use full solar panel power to a Grid-Tied Solar System.

 For example, if customer have a 2000W Grid-Tied Solar System ,then it will be provided full power

 2000W solar panel with inverter for operation.

    Take Note: Grid-tie Solar systems have not battery device to store power.    

 But for our Stand-Alone Solar System, The generated DC power needs to be stored in battery and

 converted to AC power for supplying to AC loads.

    Stand-alone Solar Power System suits to use for remote village electrification or 

 rural electrification to provide continuous reliable power at remote locations.

 Stand-alone solar system is suitable for any areas where utility power line is not available.

 This system requires a charge controller to charge storage batteries for discharge to run

 electrical appliances.

    For Stand-Alone Solar System, the max power current of Solar Panel is what we most concern

    and solar panel is only related to the charging time, not about solar panel wattage.

    The solar panel set only provide charging to the battery packs instead of providing full power.

    Battery capacity is most important factor for Stand-Alone Solar System and it depends on

    how long customer want to run appliance by inverter.

 For example KI-SA-2400,this is 2400W Stand-Alone solar system and inverter with build in 50 amp

 Solar Controller.

 So the max power current of solar panel can’t be over than 50amp.

 The max power current of 195W solar panel is 7.63AMP/unit. So we only can supply with 6 pcs 195W

 solar panel(7.63Amp x 6 pcs=47.78Amp).

 If customer want to use battery to connect with inverter and run full load 2400W(24VDC) for 1 hour,

 customer have to select about 24VDC 200AH battery. Since the max power current is 47.78 amp.

 The Charging time will be about 5 hours (200AH/47.78 amp).

 If customer want to run appliance longer, customer can connect more batteries bank but it will take

 longer charging time.


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