| Brand | HK Electrical |
| Model NO. | "V" type center break disconnector DDHV |
| Rated voltage | 126kV |
| Rated normal current | <= 2000A |
| Rated frequency | 50（Hz） |
| Series | V |
Description
Hitachi Energy's DDHV-"V" type center break disconnector is a compact, reliable and easy-to-operate substation equipment.The DDHV is suitable for applications with voltage levels up to 145 kV and is designed for outdoor switching station installations. Each phase has two mobile insulators, arranged in a "V" configuration, making the DDHV design compact and simple. As a result, DDHV is the preferred solution for substations with expensive or limited space.
Industry applications
Center break disconnector with a smaller footprint and high reliability.
DDHV disconnectors allow for flexible design and reliable operation. A built-in earthing switch is available and can be mounted on one or both sides of the disconnector.
Substations in small areas
Pole mounting
Mobile substations
Features
Reliable design
Tests are carried out according to the latest relevant standards
Maintenance-free contact system
Simple and reliable interlocks
Easy installation and commissioning
Use manual or electric motor operating mechanisms for consistent, smooth operation
Technical parameters
| specification | unit | |||
| Rated voltage | Kv | 126 | 145 | |
| Current rating | A | <= 2000 | <= 2000 | |
| The rated peak withstand current of the disconnector grounding switch | KA (Peak) | 115 | 115 | |
| Rated short-time withstand current for disconnectors and earthing switches (3 s) | Thousand Amps (RMS) | 44 | 44 | |
| 1 minute 50 Hz rated power frequency withstand voltage | to the ground and interphase | Kilovolts (rms) | 230 | 275 (Wet)/335 (Dry) |
| Isolate the fracture space | Kilovolts (rms) | 230 (+73) | 369 | |
| Rated lightning impulse withstand voltage (1.2/50 μs) | to the ground and interphase | Kv | 550 | 650 |
| Circuit resistance | Isolate the fracture space | Kv | 550 (+103) | 750 |
| Circuit resistance | μΩ | 120 | 120 | |
We have a professional service team
We have good after-sales
We can guarantee the quality of our products
Login
