10~35kV Inner Cone Plug-in Terminal
✅50%+ faster installation than conventional terminations
✅High Reliability,Excellent sealing performance
✅Fully insulated touch-safe design
✅Long service life (typically up to 30 years)and maintenance-free
- Product Introduction
The 10~35kV inner cone plug-in terminal is a type of separable cable termination used in medium-voltage distribution networks. Its key feature is a conical rubber insulating interface with an outer conductive layer, which is plugged into a corresponding internal cone insulating bushing on the equipment to form a pluggable electrical connection.
It is a critical component in modern, compact, fully insulated switchgear (such as ring main units and gas-insulated switchgear), enabling a fully insulated, fully sealed, and separable connection between the cable and the equipment.
Technical parameters:
| Test Item | Standard Requirement | Evaluation |
|---|---|---|
| Local Discharge Test | No discharge above the background should be detected at 45kV | Meets the requirements |
| Thermal Cycle Voltage Test | Under 65kV voltage, the conductor is heated to 100℃, heated for 5h, cooled for 3h, a total of 60 cycles | Meets the requirements |
| High Temperature Partial Discharge Test | No discharge above the background should be detected at 45kV | Meets the requirements |
| Room Temperature Partial Discharge Test | No discharge above the background should be detected at 45kV | Meets the requirements |
| Impulse Voltage Test | 200 kV, positive and negative polarity 10 times each should not breakdown, no flashover | Meets the requirements |
| Power Frequency Voltage Test After Impulse Voltage Test | 65kV, 15min, should not breakdown, no flashover | Meets the requirements |
| Short-time (5min) Power Frequency Voltage Test (Wet Test) | 117 kV, 5 min should not breakdown, no flashover | Meets the requirements |
Product Features
● Separable Connection: Its core function is to provide a safe and reliable "plug-and-play" type connection.
● Full Insulation & Electric Field Control: The rubber insulation of the termination and the equipment bushing together form the main insulation
● Complete Sealing: Ensures the connection point is hermetic via a top sealing plug and rear sealing rings, preventing moisture and dust ingress. This is crucial for maintaining the pressure and insulation strength in gas-insulated switchgear.
● Grounding & Shielding: The outer conductive layer is reliably grounded
● Standardized Interface: Conforms to standard geometric dimensions and electrical characteristics, ensuring compatibility with equipment from different manufacturers
Product structure:
Below is the 10~35kV inner cone plug-in terminal structure and size:
|
Product model |
System rated voltage(kV) |
Applicable cable cross- section (mm2) |
Match the inner cone socket |
Mounting diameter: (mm) |
Height(mm) |
Figure No |
|
HNCBN-10 |
15 |
50-630 |
2# |
102 |
237 |
2 |
|
HNCBN-35 |
40.5 |
50-150 |
2# |
130 |
237 |
2 |
|
HNCBN-35 |
40.5 |
50-800 |
3# |
130 |
325 |
1 |
contact us for special requirement
Typical Applications
● Ring Main Units (RMUs)
● Gas-Insulated Switchgear
● Compact Substations
● Cable Distribution Cabinets
● Transformers in wind and solar power plants
RFQ
Q: In which year was your factory established? (How old is your factory?)
A: Our factory was founded in year 2011, now have 15 years experience in electric power area.
Q: How to ensure product quality?
A: We have strict quality control during every procedure, and there is ways final Inspection(testing one by one to make sure the equipment is working in normal before shipment.
Q: Is samples available?
A: Yes, we can provide sample, but the sample cost(if goods value is high) and courier cost is on you.
Q: How big is your factory?
A: Our factory covers area 27000m2, including one office building and 3 workshops and one big warehouse.
Q: How many workers in your factory?
A: Total around 100 workers, but most production process are processed by advanced automatic equipment.
Q: Do you have R&D ability?
A: Sure, we have more than 20 engineers,and can R&D according to customer's requirement or make customized products.
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