Design and development of Marx generator for insulation testing of transmission line

High voltages are fundamentally used for testing and research purposes in the field of electrical structure and material sciences. Standard high voltage drive is made by inspiration generator that is used to test differing portions of force structure, paying little heed to whether the particular par

Project Title

Design and development of Marx generator for insulation testing of transmission line

Project Area of Specialization

Shared Economy

Project Summary

High voltages are fundamentally used for testing and research purposes in the field of electrical structure and material sciences. Standard high voltage drive is made by inspiration generator that is used to test differing portions of force structure, paying little heed to whether the particular part in the electric power system can hold up under aiding or trading floods. Aiding and trading floods every now and again happens on electric power system and MARX drive generator is entirely trustworthy and eminent way to deal with duplicate these floods. In this undertaking plan and formation of vertical structure, high capacitance MARX inspiration generator is done that is includes fourteen stages. This generator can make helping drive up to 100 KV. The model of 50 KV for this MARX generator is similarly gather that relied upon seed voltage of 6 KV DC around and curve of 3 cm is seen by this generator. This assignment is profitable for Lightening inspiration testing of connections and spreads at 1.2/50 ?sec range, trading drive at 250/2500 ?sec length and moreover at 8/20 ?sec term for material and dielectric Testing. What's more, for period of EMP on parallel plate transmission line, showing power by exploding objects and for electron imbuement in nuclear reactor MARX drive generator is used. The drive made by Marx generator is similarly used for research, legitimate and mechanical applications in high essentialness material science.

Project Objectives

To design 100kV impulse generator to test the insulation of electrical apparatus which requires High voltage
? To design and Fabrication of Marx impulse generator.
? To design and Fabrication of 20KV, 1uF Capacitors.
? To generate 100KV DC from 220V AC

Project Implementation Method

The aim is to produce high voltage impulse using Marx circuit topology. So, firstly the circuit for single exponential waveform will be analyzed and mathematical model or mathematical relation will be developed. Then the circuit to generate double exponential waveform that actually resembles with lightening impulse  will developed and finally the mathematical model for ten stages impulse generator will be obtained from these analysis.

Implementation of DC power supply with DC motor. The DC motor which we use for the main spark gap triggering. The speed of this dc motor is 12 RPM. its means that motor will provide 12 pulses in one minute.

after this we use ZVS driver which provde pulsating dc to the flyback transformer.the output of this fluback trasnformer is 7.5kv.

The essential twisting of the fly back transformer is driven by a change from a DC supply (more often than not a transistor). At the point when the switch is exchanged on, the essential inductance makes the present develop in an incline. A fundamental diode associated in arrangement with the optional winding keeps the development of auxiliary current that would in the end contradict the essential current ramp.

we design ten stages for 100kv marx generator with combination of series and parallel with each other. we use 20kv capacitor of 2uf.

The output of flyback transformer is 7.5kv passed to resistor and capacitor ladder network. In the last stage we can obsered high impulse which is used for insulation testing of transmission line.

Benefits of the Project

Marx generators are used to provide high-voltage pulses for the testing of insulation of electrical apparatus such as large power transformers, or insulators used for supporting power transmission lines. 

Much more stable work.

•Rectangular shape of voltage pulse.

•Controlled voltage pulse length.

•Controlled Delay.

•Higher repetition rate.

•Friendly support from the provider.

Technical Details of Final Deliverable

12 volt charger

Input Frequency  50-60 Hz

Charging current  2 amps or 2000mA

Output power   29.5 Watts maximum

ZVS driver

Input voltage    DC 12-13V

Input current     5-10 A

Frequency    30-50 kHz

Flyback transformer

Input voltage   20-30 V

Output voltage    7.5 kv dc

current      900-1000 mA

resistor

power   5 watt

4 mega ohm

capacitor

20 kv voltage

2uF capacitance

Final Deliverable of the Project

Hardware System

Type of Industry

Education

Technologies

Wearables and Implantables

Sustainable Development Goals

Industry, Innovation and Infrastructure

Required Resources

If you need this project, please contact me on contact@adikhanofficial.com