Product Details

Module type Marx HV Impulse Voltage Generator for Field lightning Impulse Test

Introduction

FIVG series impulse voltage test systems are mainly used to generate standard lightning impulse (LI), full or chopped waves, switching impulse (SI) wave, impulse voltage ranges from 10kV to 7200kV (LI 7200kV, SI 5000kV), energy from 2.5kJ to 720kJ. Also it can be used to carry out steeping and oscillating impulse test by adding some extra equipment.

We offer various kinds of structure design for impulse voltage generator, inclusive of L type, G type, H type, V type and etc.
Level voltage: 100kV, 150kV, 200kV, 300kV
Level energy: 5kJ, 10kJ, 15kJ, 20kJ, 30kJ

	Lightning impulse	Switching impulse	Chopping impulse
Waveshape	1.2±30%μs/50±20%μs	250±20%μs/2500±60%μs	2~6μs
Efficiency	≥90%	≥80%	≥85%

The basic system can be upgraded in various ways for special tests and greater ease of operation. A number of additional circuits and components allow optimizing the impulse test system for testing different kind of high voltage test objects.

Application

Impulse voltage test systems, also known as Marx generators, are mainly used to generate impulse test voltage for checking insulation performances of HV apparatus, including,

•Power Transformers

•Power Cables

•Instrument Transformers (CT/PT/CVT)

•Shunt Reactors

•HV Insulators

•HV Bushings

•Arresters

•GIS Switchgears

•Motors / Generators

•Other HV Apparatus

The tests are conducted with lightning (LI), full or chopped waves, and / or switching impulses (SI) as prescribed in the relevant international standards. (IEC, ANSI/IEEE and other national standards)

Features

1. Low inductance in impulse voltage generator circuit, with band-stop filter measures, still can generate standard waveform in case of large capacitance load, big load capacity.

2. High voltage utilization efficiency, LI >90%, SI>80%.

3. Compact structure, nice appearance, convenient wave shaping, easy operation, good synchronized performance, reliable action.

4. Using SCR (Silicon Controlled Rectifier) and LC constant current charging automatic control technology, high automation and strong anti-interference.

5. The measure software has already been evaluated by GB/T and IEC standard.

Configuration

Essential	Optional
Impulse Voltage Generator	Chopping Gap
DC Charging Device	Steeping Wave Device
Damped Capacitive Divider	Glaninger Circuit
Control and Measure System	Shunt
Other configuration is possible upon request

Principle

Impulse voltage test system operates under a control system which charges the impulse generator through the charging unit. This is achieved as the stages in the impulse voltage generator are connected in parallel via the charging resistors. Charging time and voltage can be selected.

Once the selected charging voltage has been reached, a trigger pulse initiates firing of the first spark-gap of the impulse voltage generator. As all the spark-gap fire, the stages which are connected in series, multiply the charging voltage to reach the test voltage.

Any impulse voltage divider reduces the impulse voltage to a value that the measuring and recording instruments required.

Reference


3600kV 360kJ	3000kV 300kJ	900kV 45kJ

3000kV 300kJ	3000kV 300kJ	1800kV 180kJ

4000kV 200kJ Modular type (outdoor)	2400kV 120kJ Modular type (outdoor)	2400kV 120kJ (outdoor)

Company Information

We are the leading and earliest manufacturer of high voltage, high current and high power test system in China, provide AC, DC, impulse testing and associated measuring equipment used to electrical application, such as testing project of power cables, power transformers, GIS switchgears, insulators, generators, arresters and etc. And test systems for laboratory, factory and field use are available.

Our factory was founded in 1970, and established R&D center institute of HV testing equipments in 1986, which cooperated with Shanghai Jiaotong University.

We are pleased to announce our quality management system has been approved to ISO 9001 : 2008, so far we have applied more than 58 invention patents.

We have well cooperated with many world famous electrical corporations, like ABB, ALSTOM, SIEMENS, TOSHIBA, HITACHI, HYUNDAI, AE POWERS and etc, also state grids, research institutes, universities and HV testing service providers, we have successfully offered them plenty of high voltage test systems, all well performed.

Our new factory is under construction, which will go into service in 2015, it will become the biggest manufacturer of high voltage testing equipment all over the world.

Contact person: Roger Chen

Tel: 0086-159-8099 8097

Email: sales#

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