Description | Type F impulse current generator | |
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 Series Impulse Current Generator
– Main Specifications
Model | Rated Current (kA) | Waveform (μS) | Rated Capacity (kJ) | No. of Stages (n) | Note | |
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 |
