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Circuit diagram for 3000 watt pure sine wave inverter

This inverter is not working correctly. It is generating AC voltage but the voltage is low. I need a circuit diagram to diagnose the problem. The inverter is from China. There is no other identification information on the unit.

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Posted on Jan 02, 2017

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SOURCE: The Sunforce 2500 pure sine wave inverter displays

Went to a free website with industry professionals sharing their knowledge instead of signing up for more ways to spend what little money I have.

Posted on Nov 01, 2009

emissionwiz
  • 75822 Answers

SOURCE: i have samlex 600 watt

replace the inverter diodes, they are most likely burned out

Posted on Jun 18, 2009

  • 14 Answers

SOURCE: i have a 3000 watt magnum energy sine wave

I'm sorry that I can't help you, but if you're in a hurry, you can visit the Magnum website at: http://www.magnumenergy.com/Service/Servicefront.htm and try to find your model's online manual and search troubleshooting advice or you can email customer service at
support@magnumenergy.com and they should at least be able to lead you in the right direction.

A few questions: Does this problem remain even when there is at least a 10+ watt load on your system? is your Magnum in a hot environment? Does your inverter feel extraordinaryily hot? Have your batteries outlived their lives? Have you cleaned all the connections? Even if they 'look' like they don't need it?

All the best to you.

Posted on Sep 11, 2011

  • 1212 Answers

SOURCE: user's manual pure sine inverter

http://www.donrowe.com/user_guides/samlex/ssw_series.pdf

May or may not be identical to what your part number is but the general guidelines are the same.

If you are looking for the schematic, the manufacturers keep a tight lid on those to protect intellectual property as there are several ways to achieve the sinewave synthesis, and some are under patent or are under license.

If you understand the principles of a Class A audio amplifier, you should be able troubleshoot this type of inverter.

Posted on Jan 16, 2012

  • 1 Answer

SOURCE: my aims 2000 pure sine wave inverter is pluged to

Most likely your problem is in the battery type. You state that you have 2 240Ah batteries. I suspect these are deep discharge batteries which are designed to deliver low power over a long period of time. Typically the AmpHour (Ah) rating, for these type of batteries is stated at a 20 hour discharge rate. This would be a maximum of 10 amps per hour for 24 hours for the 240Ah batteries. However most batteries will only allow for a 75% efficiency so the actual delivered amperage will be about 7.5 amps per hour for 24 hours.
The wattage delivered at 7.5 dc amps at 12 v equals 90 watts. The inverter will deliver about 85% (efficiency of inverter) of this to the AC plug for about 75 watts. This is the optimum sustained load the battery will deliver for the stated 240 Ah capacity. Normally you would not drain the battery to this level. Typically battery manufacturers recommend not drawing the battery below 50% of its rated AmpHr capacity for maximum life.
As you begin to exceed the optimal wattage, particularly in a deep discharge battery, the efficiency of the battery drops, additional heat is generated, and voltage of the battery begins to drop. The higher the load the faster this occurs. I would expect in your situation (1800 watts 2-240Ah deep discharge batteries) to begin to get a low voltage alarm (about 11.5 volts) in less than a minute. You can verify this if your batteries are connected to an automotive alternator, as these can deliver high amperage as long as the engine runs. My RV has a 200 amp alternator, and when running will power 1500 watts through my alternator with no problem. Without the alternator running my Cobra 1575 inverter will shut down in about 30 seconds. (I have 2 225Ah deep discharge batteries that are new.)

Posted on Jun 15, 2013

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Generator burning my electronics up


take you generator in and have the output tested for correct voltage and sine wave configuration
electronics rely on a perfect sine wave ac current as a manufactured sine wave affects electronic components such as capacitors, transistors and diodes
generator sets that run an alternator ( not an inverter ) have a pure sine wave and have less affect on electronics.
go google and type in search headings like ---sine wave, inverter sine wave, sine wave affects on electronics, alternator operation and inverter operations and then you may get a pointer as to why your inverter gen set is affecting your electronics

Jul 23, 2016 | Honda EU3000iS Inverter Generator

Tip

WHAT IS A POWER INVERTER?


A power inverter is an electronic device that converts electricityfrom one form to another. Power inverters have become more popularrecently as the technology has become more efficient and much moreaffordable.

The most popular use for a power inverter isconverting battery electricity into mains electricity. For exampleconverting your car batteries' 12 volts DC into mains electricity 240Volt AC (Australia) or 110 Volt AC (USA).

WHAT POWER INVERTERS WILL HELP YOU DO
  1. Power inverters enablemains operated electrical equipment to be used even where there is nomains outlets, like in your car, caravan or even on your boat!
  2. Powerinverters bring creature comforts from home when you go camping orcaravaning allowing you to use your TV, fridge or electric shaver infact most of the normal mains powered conveniences from the home.
  3. You can charge your laptop in the car even if it doesn't happen tohave a 12 volt adapter. In fact a power inverter can be a very handygadget just to have in your car for those times you need to use a mainspowered appliance while you're away from a power socket.

WHAT TO LOOK FOR WHEN BUYING A POWER INVERTER
Apartfrom looking for a good quality well priced product there are a coupleof important elements to consider when selecting your power inverter:

HOW MUCH POWER IS ENOUGH ?
Powerinverters come in a range of power capacities so selecting the rightone for you is very important. Your power inverter needs to be able toprovide sufficient power for the equipment you want to use it with.
Here is a brief check list:
  1. Check the power consumption for the device you want to power
  2. Allow an additional 20% free board
  3. Add the power for all the devices you want to run at the same time
Note also that devices with induction electric motors like an power saw mayrequire 3 to 7 times the operating power when they start.
Usingan under-powered power inverter may damage it or the appliance you aretrying to use, so be sure to check the specific wattage requirementsand operating instructions for appliances / tools to be used.

PURE SINE WAVE INVERTERS
Normal mains power is known as Alternating Current (AC) and is a sine wave shape like the black line in the drawing below
Pure sine wave (black) versus modified sine wave (red)
Atypical power inverter produces a 'modified sine wave output' like thered line in the drawing above. While this works for most appliances,light dimmers, variable speed drills, sewing machine speed controls,some laser printers etc. will not operate correctly with a modifiedsine wave power inverter.
Pure sine wave power inverters areespecially designed to provide a more accurate sine wave output and socan be used with these appliances, but unfortunately they are moreexpensive.
Check with your with appliance manufacturer or itsspecifications to confirm if you can use a conventional power inverteror will need a pure sine wave inverter.
WARRANTY
One of thegreat things about electronic equipment is there is no moving parts(although there is a fan in some models) so you can expect a longserviceable life from a power inverter.
STANDARDS
Powerinverters generate dangerous mains voltages so ensure the product youchoose is approved for use with your mains voltage and supplier.
Powerinverters can also generate electro-magnetic radiation that caninterfere with other electronic equipment such as radios transmittersetc. Check for compliance with relevant standards such as C-Tick etc

SAFETY
Powerinverters can generate potentially lethal voltages so the utmost ofcare should be exercised using them to avoid accidental electrocution.

SUMMARY
To select your power inverter carefully check the power requirements for the appliance(s) you intend to use it with.
  1. Start power - Allow up to seven times for an induction motor
  2. Operating power - Allow a 20% margin
  3. Pure or modified sine wave

on Mar 04, 2010 | Electronics - Others

1 Answer

Low voltage output 170 volts


Check your voltage meter, so it measures correctly, probably generate your UPS is not pure sine wave, but a modified sine, then the simple measuring devices to display the wrong value.

Jun 20, 2014 | APC BE500R Back-UPS ES 500 (BPAPWBE500R)...

1 Answer

Need owners manual


Without knowing make or model other than 600 Watts and pure sine output:
http://www.donrowe.com/user_guides/samlex/ssw_series.pdf
is for a series of pure sine inverters, yours should be similar enough to the 600 Watt version to be of practical use.

Jan 14, 2012 | Inverter 600 Watt Pure Sine Wave

1 Answer

I need an inverter for my 1 hp air condition. how many watts do i need especially at start-up? modified or pure sine wave. Thank you.


The most important spec that you will need is the LRA rating. What this stands for is locked rotor amps. The LRA rating is what the AC unit will draw from the inverter while the compressor starts up. This is a very important spec when sizing an inverter for use with an AC unit. After you get this spec you will multiply it by the voltage and this will be the startup wattage needed by the inverter.

For example if your LRA is 60.6 amps if you multiply this by 115 you will get roughly 7000 watts at start-up.

The next thing to take into consideration for a AC unit is battery bank size. Your next step in setting up a system for use with an AC unit is finding a sufficient recharge source for the batteries. You will want to have a minimum of a 150 amp alternator to recharge a system with a small AC. I do not know whether you will be able o accommodate them.
Why don't you go for solar power as standby OR a small generator????????

Aug 05, 2011 | Inverter Heating & Cooling

3 Answers

My aims 2000 pure sine wave inverter is pluged to 2 240amp/h 6 volt batteries. When | plug in a 1800 watt hairdrier i get an alarm as if the batt. were to low. they are new and at full charge. is the load...


Your inverter has a peak of 3000 watts rating and should power that hair dryer. Make sure your batteries are in good shape. The inverter can only put out what it takes in. 1800 watt demand on the inverter requires 1800 watts from the batteries.

Jul 14, 2009 | Inverter Aims Pure Sine Wave Power...

1 Answer

Run a CPAP on a power inverter


I would not do this, you really need a pure sine wave inverter to guarantee the safety of your CPAP machine. At the price they are selling this device it could not be pure sine wave. 150W pure sine wave would be $70-$100.

Mar 05, 2009 | Thermal Engineering Corporation I-Tec 150...

1 Answer

Monitor 2400 heater will shut down when I run My generator


A UPS unit might work. Electronics need steady clean power.

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