12v Dc To Ac Power Inverter - USA

The power inverter convert the fixed 12v DC Voltage to 220v AC voltage

of PWM nature.

A sine or LC filter at the output of pure sine wave power

inverter converts this PWM voltage to a 3 phase pure sinusoidal voltage.

The LC filter acts as differential mode filter and suppress the

harmonics of the power inverter.

So the simple topology a 3 Phase power

Inverter and an LC Filter at the Output of 12v dc to ac inverter is

used.

The capacitors in the LC filter are connected in Delta connection.

The output of LC filter is taken as supply to the load.

Here the supply

is of 3phase 3wire unearthed or floating neutral type.

how to calculate

Phase to Earth voltage for this kind of system.

The output voltage of 12v dc power inverter is AC 220V L- L, 3phase sinusoidal voltage and observed practical reading of phase to earth voltage is of around 5kV Peak to Peak in normal steady state condition.

I wonder from where this much of voltage is coming from.

Is this a common mode voltage formed because of parasitic capacitance between phase and earth ? and how can we estimate it? Are there any another reasons for this much of voltage?

Company Contact:

• Posted By: Go Hz Inc.

• Phone: 3123800529

• Address: 216 N Oakley Blvd, Chicago , IL , USA

• Email:

• Website: http://www.GoHz.com

• Business Description: GoHz is a manufacturers based online shop in AC power supply industry to provide solutions for changing regular grid power frequency (50 Hz, 60 Hz), DC power source to adjustable frequency & voltage source.
  
  Solid state pure sine wave frequency converters, variable frequency drives, dc to ac power inverters etc.
  
  are for sale in affordable price on GoHz.
  
  The 2.2 kW AC Drive/Inverter is basically an AC to AC converter, perhaps for converting frequency from 50 Hz to 60 Hz or the other way round.
  
  And that you have an identical 2.2 kW AC Drive/Inverter and want to use it for driving a DC Motor.