Ⅰ. Introduction to Lateral Expansion Busbar Connector System
The horizontal expansion busbar system is widely used in the combined connection of ring main unit (RMU) and gas insulated switchgear (GIS). It is mainly composed of side expansion bus connectors and inner cone bushings, providing more branches for equipment expansion.
Ⅱ. Features of Busbar Connector
Molded from safe and environmentally friendly silicone rubber
Has excellent insulation properties, corona resistance and tracking resistance
Reasonable structural design, three-layer post-injection peroxide cross-linking process to reduce partial discharge
Built-in stress control, uniform electric field distribution
The conductive copper price of the top busbar connector is T2 copper tube or copper rod, and the busbar tubes is locked with a busbar clamp.
Suitable for copper and aluminum cables
Quick assembly and simple installation
Ⅲ. Electrical Performance Parameters of Lateral Expansion Busbar Connector System
NKS-15(24)/630-CM- | Items | Parameter |
| Technical Parameters | System Voltage | 15kV | 24kV |
Rated current | 630A | 630A |
Frequency withstand voltage(AC) | 48kV/1min | 65kV/1min |
Partial Discharge | 15kV＜10pC | 20kV＜10pC |
Impulse voltage | 105kV | 125kV |
| Temperature rise test | ＜65K | ＜65K |
| Shielding resistance | ＜5000Ω | ＜5000Ω |
The product has passed the inspection and certification of the China Electric Power Research Institute (CEPRI) Power Industry Electrical Equipment Quality Inspection and Testing Center
Type test reference standard: IEC 60502-4:2010 GB/T 12706.4-2008
Ⅳ. Selection Table for Busbar Connector System
| Product name | Describe | Kit Code | Product Code |
Side expansion bus-bar connector | Conductive rod OD 18 | NKS-15(24)/630-CM-1# | 61901SPB-SZ |
| Conductive rod OD 20 | NKS-15(24)/630-CM-2# | 61902SPB-SZ |
| Conductive rod OD 12 | NKS-15/630-CM-3# | 61903SPB-SZ |
| Conductive rod OD 20 | NKS-15/630-CM-4# | 61904SPB-SZ |
Side expansion plug | Conductive rod OD 18 | NKS-15(24)/630-CD-1# | 62101SPB-SZ |
| Conductive rod OD 20 | NKS-15(24)/630-CD-2# | 62102SPB-SZ |
| Conductive rod OD 12 | NKS-15/630-CD-3# | 62103SPB-SZ |
| Conductive rod OD 20 | NKS-15/630-CD-4# | 62104SPB-SZ |
