Screened Insulated Separable Cable Connector Systems
- Rated voltage:
- 35 kV
- Rated current:
- 630 A
- AC Withstand Voltage for 5min:
- 117 kV
- Partial Discharge:
- 45 kV,≤10 pC
- Impulse Withstand Voltage(10 times foreach polarity):
- 200 kV
- Screen Resistance:
- ≤5000 Ω
- Reference standards:
- GB/T 12706.4、IEC 60502-4
Medium-voltage electrical distribution demands reliable terminations to maintain operational continuity in compact ring main units and transformers. A high-performance separable connector ensures a fully shielded, touch-safe interface between underground power lines and switchgear. Hangda Electric delivers the 8.7/15kV 630A Front Plug-in Cable Connector, engineered to withstand heavy current loads while maintaining moisture-proof sealing. Industrial energy networks rely on Separable Connectors to simplify field assembly and lower maintenance overhead.
Technical Specifications
| Parameter | Specification |
|---|---|
| Rated Voltage | 8.7/15 kV |
| Current Rating | 630 A |
| Material | EPDM Rubber |
| Bushing Interface | Type C Outer Cone |
| Cable Section Range | 35 – 500 mm² |
| Test Standard | IEC 60502-4 |
Product Performance and Structural Features
Screened separable connectors prevent external partial discharge through an outer conductive screen tied directly to system earth. This grounded outer shield ensures safe contact during routine inspection.
Primary Engineering Advantages
-
Insulated Construction: Separable insulated connectors utilize sulfur-cured EPDM matrix to withstand surface tracking, ozone exposure, and temperature variations.
-
Voltage Detection: An integrated capacitive test point permits phase checking without disturbing electrical contacts.
-
Secure Mating: A deadbreak bolt-on structure locks the separable cable connector tightly onto standard outer-cone bushings, stopping thermal loosening during load spikes.
Application Scenarios
Hangda Electric designs deadbreak elbow components for switchgear, distribution substations, and industrial power equipment. Proper strain relief and precision-molded mechanical interfaces lower insulation wear, offering dependable protection across urban distribution grids.
Product features
The 630 A front plug-in cable connector directly connects to the incoming and outgoing bushings of switchgear and the bushings of cable branch boxes, providing fully insulated and safe circuits for switchgear and cable branch boxes.
During front plug-in operation, it is bolted to the switchgear bushing seat; the rear end can be directly sealed with an insulator or extended to connect to a rear connector arrester. Utilizing advanced post-injection technology, the outer layer has a semi-conductive layer that acts as a shield, is touch-safe, and ensures personal safety. The unique stress cone structure effectively disperses electric field stress and addresses electric field stress issues at the cut-off point of the cable shielding layer. It offers expandability, flexible disassembly, and assembly, enabling T-type cable connections, and is fully sealed, fully insulated, fully protected, maintenance-free, submersible-resistant, and pollution-resistant.
Technical Data
| Rated voltage | 35 kV | ||
| Rated current | 630 A | ||
| AC Withstand Voltage for 5min | 117 kV | ||
| Partial Discharge | 45 kV,≤10 pC | ||
| Impulse Withstand Voltage(10 times foreach polarity) | 200 kV | ||
| Screen Resistance | ≤5000 Ω | ||
| Reference standards:GB/T 12706.4、IEC 60502-4 | |||
Models Selection
| Product model | Cross sectional area nominal(mm²) | 26/35 kV voltage level cable insulation outer diamerer(mm²) | ||
| GHD-35/630A-QC-35 | 35 | 29 | ||
| GHD-35/630A-QC-50 | 50 | 31 | ||
| GHD-35/630A-QC-70 | 70 | 32.6 | ||
| GHD-35/630A-QC-95 | 95 | 34.2 | ||
| GHD-35/630A-QC-120 | 120 | 35.6 | ||
| GHD-35/630A-QC-150 | 150 | 37.2 | ||
| GHD-35/630A-QC-185 | 185 | 38.7 | ||
| GHD-35/630A-QC-240 | 240 | 41.1 | ||
| GHD-35/630A-QC-300 | 300 | 43.2 | ||
| GHD-35/630A-QC-400 | 400 | 46.6 | ||
| GHD-35/630A-QC-500 | 500 | 49.2 | ||
Product accessory Illustration
