Modeling the High Voltage System for Water Purification

Do you want to operate in the full spectrum of 50KV to 100KV and 10ns to 20ms? Also Can you specify the duty cycle (off time for pulse) of pulse and what the power output that pulse may need, I mean any current passed or just an electric field?

Please consider:

electrical fied: 50...100KV/cm

duration of the pulses: 100ns a 10micros

Load dimensions: 1cm

Operation: high average power >10Hz

I would go with like this,

A high voltage transformer sized to power requirements-feeding a rectifier-charging a modular capacitor bank-connected to thyristor or thyratron

And a pulse generator with 10 ns pulse with frequency of 10Hz, and triggering to thyristor,

capacitor bank is adjusted to the size so that it discharge to zero with every pulse and again charge during the off time of pulse.little bit of electronics will be required to isolate the rectifier from the capacitor bank when trigger pulse is executed.

Thank you very much!

Do you think that it is possible to model the electrical field distribution between the electrodes using a model for hig voltage power supply + electrodes + cell bacteria using for example a electrical model for each one?

Eduardo

What I have suggested is just based on the circuit output requirements and I am not sure how it would behave in the actual applications, This circuit is a simple automation of a manual process of charging a capacitor to certain voltage and discharging it in a circuit.

I don't know if u have ever seen a surge tester used for the testing of windings, this is the kind of circuit used there.

beside this take care of safety measures if you work on this kind of projects and make sure you are qualified and equipped to work on these level of voltages.

Hi guys This reminds me of my first job after graduation. I had to come up with 90 KiloVolts to create an Electrical Field . I used four 15KV Neon Lighting transformers joined them in series and i had 90 kvolts. The system was used for frocking powder to make velvet tissues. they were 5 amps 220volts transformers. I even used 1 kv diodes in series to make a bridge rectifier. The system did work. Just be careful with 90 KV DC cause i know how it tastes and it sucks. Threw the screwdiver in my hand to the ceiling. Returning to your problem you must come up with a timer to trigger it for the needed period. One more word. Connecting the transformers in series is tricky. you must connect the low voltage side in parallel and the hight voltage side in series. Think of the secondary side as a vector and connect them like you would add vectors. To decide the positive and negative side of the vector use a 1.5v dry cell battery on the low voltage side and a DC voltmeter on the high voltage side. This will be some heavy duty device. Wish you luck

Actually, you don't need high voltage but you do need high current for this sort of application. It is the current that actually electrolyzes the water that in turn ionizes and kills the bacteria.