Post-type Disconnector Series

Post-type disconnectors offer reliable visible circuit isolation for overhead lines and substations, with manual or motorized single-phase and three-phase configurations.

Specifications

Model
Post-type Disconnector Series
Material
Composite silicone rubber and ceramic insulator, hot-dip galvanized steel frame, brass/copper alloy contacts
Application
Overhead distribution line isolation, substation switching, maintenance safety disconnection
Feature
Single and three-phase configurations, manual or motorized operation, galvanized steel structure, IEC compliant
Catalog Category
Insulator and Arrester

Product Description

WANGYUAN Post-type Disconnector are designed for visible circuit isolation on overhead distribution lines and substations. Made of high-strength ceramic insulators or composite silicone rubber with hot-dip galvanized steel frames and copper alloy contacts, the robust blade-type switching mechanism ensures reliable make-break operation under load conditions. Available in single-phase and three-phase configurations with manual or motorized actuation, all products comply with relevant international standards, widely deployed in utility pole-mounted and substation isolation applications.

Specification

Pole mounted air breaker switch without fuse

Type L W H
(H)GW-12(15) 1530 675 730
(H)GW-24(27) 1730 750 860
(H)GW-30(36) 1885 820 990

Type L W H
(H)RGW-12(15) 1530 675 1510
(H)RW-24(27) 1730 750 1510
(H)RGW-30(36) 1885 820 1510

Pole-mounted lACM Volley Disconnector

Technical characteristics

Item Unit Data
Rated voltage kV 12 24 36
Rated frequency Hz 50/60
Rated current A 100/200/400
Rated short-circuit withstand/ breaking current kA 12.5
Rated short-circuit making current (peak) kA 32
Rated peak withstand current kA 32
Rated short-circuit time Sec 1
Mechanical Operations Times 5000
Power frequency withstand voltage (1 min) kV 28/32 50/60 70/80
Lightning impulse withstand voltage (peak) kV 76/85 125/145 170/195

Pole-mounted Load Breaker Switch

Item Unit Data
For active circuits 20breakings A 630 630 400
30breakings 400 400 300
40breakings 300 300 250
50breakings 250 250 170
75breakings 170 170 160
120breakings 110 110 110
200breakings 65 65 65
280breakings 50 50 50
For ring circuits A 630 400 250
Rated breaking capacity of transformer A 50
Rated breaking capacity of cable charging A 11
Rated breaking capacity of earthing fault A 56

Note: The LBS type on load break switch (Switch disconnector) is equipped with stored energy released by fuse strike pins.
The stored energy mechanism for the opening oparation is released by fuse strike pins.
The trip actuator is mounted on top of the fuse contact clip.
The DIN type fuse is held in spring type contacts, secured by a tailever. All the components are made of stainless steel, to preventcorrosion have Jong live, and in the rest position. The trip lever is parked in an over-centre position.

Outline Dimension

Electric parameter:
Rated voltage: 12kV-24kV-36kV
Rated current: 630A-1250A
Power frequency withstand: 42/65/95kV
Lighting impulse withstand voltage: 95/150/215kV
Short circuit withstand: 20/25kA

Type C D F H L W
LBS-12 800 1080 1200 670 775 1100
LBS-24 900 1180 1200 770 450 1400
LBS-36 1000 1280 1200 870 700 1900

Advantages

Isolation Performance

Isolation Performance

The visible break blade design provides clear open/closed position indication for operational safety. High-quality copper alloy contacts with wiping action ensure low contact resistance and reliable current transfer.

Mechanical Strength

Mechanical Strength

Hot-dip galvanized steel frames and mounting brackets withstand severe mechanical loads and short-circuit forces. Ceramic insulators offer high compressive and cantilever strength for long-term structural integrity on poles.

Weather Resistance

Weather Resistance

Ceramic insulators with glazed surface resist tracking, erosion and UV degradation in outdoor environments. Hot-dip galvanized steel components provide decades of corrosion protection in harsh climatic conditions.

Installation & Range

Installation & Range

Compact post-type design simplifies pole mounting with standard bracket interfaces. Motorized actuator option enables remote SCADA-controlled operation, supporting both single-phase and three-phase line configurations.

Use scenario diagram

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