35kV Detachable Connector

Application areas:

Used for incoming and outgoing line positions in electrical equipment of 35kV and below. The product is available in Type C and Type E designs, conforming to EN 50180 & EN 50181 standards. It meets the requirements of different bushing exits for both Type C and Type E bushings. It provides full insulation and shields any touchable electrical connections between the outgoing bushings and cables of electrical equipment.

Product Description

The 35kV detachable connector includes:

1. 35kV C-type separable connectors conforming to C-type bushings (commonly known as European series): 35kV C-type shielded front insert, model: WCB 35/630; 35kV C-type shielded rear insert, model: WCBK 35/630.

2. 35kV E-type separable connectors conforming to E-type bushings (commonly known as American series): 35kV E-type shielded front insert, model: WEB 35/630; 35kV E-type shielded rear insert, model: WEBK 35/630.

3. 35kV Type C separable connectors are generally used in 35kV ring network switchgear to provide fully insulated electrical connections between the incoming and outgoing bushings and cables of the switchgear.

4. 35kV E-type separable connectors are generally used in 35kV cable branch boxes to provide a fully insulated electrical connection between the bushing and the cable in the cable branch box.

When in operation, it is bolted to the switchgear bushing socket; its tail can be directly plugged with an insulating plug, or it can be extended to connect to a rear-mounted cable plug or a rear-mounted surge arrester.

The rear plug connects to the front plug of the same series or another rear plug of the same series, providing an extended cable connection loop (branch). It cannot be directly connected to the bushing. The tail can be directly plugged with an insulating plug, or it can be extended to connect to another rear-plug cable head or rear-plug surge arrester of the same series.

Features

1. Made of high-quality EPDM rubber, it not only has excellent electrical properties, but also is tear-resistant, ozone-resistant, oxidation-resistant, corrosion-resistant, and has high mechanical strength.

2. The internationally advanced three-layer injection process effectively ensures interface performance, avoids interlayer gaps, and minimizes partial discharge.

3. The inner and outer shields of the shielded plug are designed and optimized using simulation software, resulting in a more reasonable electric field structure. The outer shielding layer is molded, and the grounding resistance is less than 5000Ω, effectively keeping the outer surface of the cable head at zero potential and ensuring the safety of maintenance personnel.

Product Parameters

Electrical performance

Rated voltage	35kV
Applicable sleeve type (front insertion)	Type C, Type E
AC withstand voltage	117kV/5min
Partial discharge	45kV, ≤10pC
Impulse voltage (10 times each for positive and negative polarities)	200kV
Shielding resistor	≤1000Ω
Applicable cable cross-section	25-500mm2
Note: This product meets the requirements of GB/T 12706.4.

Serial Number	project	unit	parameter
1	Product Model	-	YH5WZ-51/134	YH5WZ-51/134	YH5WZ-51/134
2	System nominal voltage	kV	35	35	35
3	Surge arrester rated voltage	kV	51	51	51
4	Continuous operating voltage	kV	40.8	40.8	40.8
5	Nominal discharge current In	kA	5	5	5
6	DC 1mA reference voltage	kV	≥73	≥73	≥73
7	0.75U1mA leakage current	μA	≤10	≤10	≤10
8	Steep wave shock residual pressure	kV	≤154	≤154	≤154
9	Lightning impact residual pressure	kV	≤134	≤134	≤134
10	Operating impact residual pressure	kV	≤114	≤114	≤114
11	Partial discharge	pC	≤10	≤10	≤10
12	2ms square wave impulse current withstand	A	400	600	800
13	High current surge withstand	kA	100	100	100

Product Selection

Electrical performance