Model

CDLF

Structure

Type F

Each unit consists of 6 capacitors vertically placed on an experiment platform, with a multi-tap waveform modulating inductor being concatenated at the capacitor terminal; any multiple units are arranged in rows around the discharging ball-gap; modulate the waveform modulating inductor placed on each capacitor terminal according to the square waveform and the sample resistance during the test.

Application

Applicable to the long duration of impulse current withstand test of valve plates, section of an arrester and the entire arrester.

Advantages

Artistic appearance

As shown in the figure.

Modular design

The charging device, the waveform modulating inductor, the capacitor rack, the discharging ball-gap etc. are designed as independent function modules, which are convenient for assembly and repair.

Skillful arrangement

Impulse current square waveforms with different energy can be generated through the combination of various units and different arrangements of capacitors of each unit.

Convenient waveform modulating

The waveform modulating inductors spread on each capacitor through multi-tap winding, which provide convenient short circuit of inductors and various combinations, so it is easy to modulate various impulse current square waveforms.

Compact structure

The discharging ball cylinder, the sample platform and measuring components are stacked and installed on the same base in order, through which a compact structure and a small inductance loop are achieved.

Stable and reliable triggering

Durable graphite pebbles are used as the discharging balls; the ball-gap transmission is controlled by a cylinder which provides stable triggering.

Convenient moving

Swivel casters are installed on each modular unit for easy and convenient moving.

Stable system performance

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

Performance

Current wave

1.0 - 2.0mS and 1.0 - 1.5kA impulse current square waveform can be generated;

2.0mS and 3.0 - 12.0kA impulse current square waveform can be generated;

3.0mS and 6.0kA impulse current square waveform can be generated;

4.0mS and 3.0kA impulse current square waveform can be generated;

6.4mS and 3.0kA impulse current square waveform can be generated;

Split-type structure is employed for the charging device and the main body of the impulse current generator.

Bridge rectification is employed for the charging device.

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

The discharging ball is installed in a sealed insulating cylinder, which can decrease the discharging noise.

A safety grounding device is equipped for the main capacitor.

A Rogwoski coil and a capacitive residual voltage divider are used for measuring components.

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

CDL/C 20/5.4

20

8/20

5.4

1

CDL/ C 40/ 21.6

40

8/20

21.6

1

CDL/ C 100/ 54

100

8/20

4/10

54

1

CDL/ C 200/ 150

200

8/20

4/10

150

1

CDL/H 200/

50~200

8/20

4/10

30/80

1/20

54~250

2

Multi-

waveform

CDL/F 8/

1.0~8

2ms~

10ms

100~1000

2

Rectangular

waveform

CDL/ H 20/ 360

20

8/20

>7

360

12

For testing Complete

Surge arrestors