Description

Type H impulse current generator

Model

CDLH

Structure

Type H

Each level consists of 2 parallel plug-in capacitors on a steel rack composed of 4 flanges, various levels are spliced level by level which is convenient for dismounting and repair and the integral structure is stable.

Application

Applicable to the residual voltage test and the shunt characteristic test of an entire arrester of 35 - 110kV or 220kV or higher voltage level.

Advantages

Artistic appearance

As shown in the figure.

Strong function

The shunt characteristic test of an entire 220kV arrester can be conducted for 16 lines at maximum.

Convenient waveform modulating

Hand winding is employed for the waveform modulating inductor with flexible arrangement, so it is easy to modulate various waveforms.

Fine synchronization performance

A unique synchronization technology is adopted with a synchronization range no less than 20% and an out-of-control ratio no more than 1%.

Simple and convenient operation

Spring crimping of the resistance connecting end is adopted, through which, the replacement is easy, fast and convenient;
The operation and maintenance is safe and convenient for an ascent ladder is equipped in the generator and an operating platform and a flap are provided every three levels.

High output efficiency

Lightning wave efficiency≥90%; operating wave efficiency≥70% (under 3000pF total load).

Convenient and stable moving

It is easy and stable to move equipment since air-cushion transportation system which has been successfully used on 6000kV equipment is equipped.

Stable system performance

Long-time running at 80% of the rated voltage.

Performance

Lightning wave

Standard lightning wave no more than 2,400kV can be generated.

Operating wave

Operating wave no more than 1,800kV can be generated.

Current wave

8/20μS lightning impulse current wave can be generated;
30/80μS operating impulse current wave can be generated.

Integrated structure is employed for the charging device and the main body of the impulse current generator.

Bilateral symmetrical charging is employed for the charging device.

Automatic grounding and automatic switching of polarity are available in the charging device (internal).

The discharging ball is installed in a sealed insulating cylinder and clean air is continuously supplied to the insulating cylinder by a blower.

A safety grounding device is equipped for the main capacitor.

High voltage level, large capacity and strong load capacity.

The technical indexes and performance of type H package equipment are at the advanced level of China.