36kV Load Switch DNFLN36-40.5D GRL

Rated voltage：

36kV

Rated frequency：

50Hz

Rated current：

630A

Rated peak withstand current：

50kA

outdoor HV Isolation load switch

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Description

36kV Load Switch Overview

The 36kV Load Switch is a high-voltage electrical device designed for indoor applications, specifically for medium-voltage power distribution systems. This switch is engineered to provide reliable load switching, isolation, and grounding functions, ensuring the safety and efficiency of electrical networks.

36kV Load Switch Features

Compact Design: The 36kV Load Switch features a compact and lightweight design, making it suitable for various installation environments, including substations and industrial facilities.
SF6 Insulation: It utilizes sulfur hexafluoride (SF6) gas as both an insulating and arc-extinguishing medium. This ensures that the main circuit remains sealed and protected from external environmental factors, enhancing reliability and safety.
Multi-Functional Operation: The switch integrates multiple functions, including load switching, disconnection, and grounding, into a single unit. This reduces the number of components required and simplifies installation.
Maintenance-Free: Designed for long-term operation, the 36kV Load Switch can function safely for over 20 years under normal conditions without the need for maintenance, significantly reducing operational costs.
Safety Mechanisms: In the event of internal arcing, the switch is designed with a structural weak point that allows overpressure gas to escape safely outside the switchgear, ensuring the safety of the equipment and personnel.

36kV Load Switch Technical Parameter

NO.	Item	Unit	Value
1	Rated Voltage	kV	36
2	Rated Frequency	Hz	50
3	Rated Current	A	630
4	Rated Peak Withstand Current	kA	50
5	4s Rated Short-Time Withstand Current	kA	20
6	Rated Making Current	kA	50
7	Rated Breaking Current	A	630
8	Power Frequency Withstand Voltage (1 min)	kV	90/95
9	Lightning Impulse Withstand Voltage	kV	175/185
10	SF6 Gas Relative Pressure (20°C)	MPa	≤ 0.1
11	Rated Operating Voltage (Motor)	V	AC220, DC220
12	Average Opening Speed	m/s	3.5 ± 1.5
13	Average Closing Speed	m/s	3.5 ± 1.5
14	Three-Phase Operation Synchronization	ms	≤ 3
15	Main Circuit Resistance	µΩ	≤ 120
16	Manual Operation Torque	N·m	≤ 160

36kV Load Switch Applications

1.Substations

Essential for managing and distributing power in electrical substations.

2.Industrial Plants

Used to control power supply to machinery and equipment, ensuring operational continuity.

3.Renewable Energy Facilities

Integrated into wind and solar power plants to manage the connection and disconnection of renewable energy sources.

4.Commercial Buildings

Provides reliable power distribution and management in large commercial facilities.

5.Transportation Infrastructure

Utilized in railway and airport electrical systems to ensure safe and efficient power supply.

The 36kV Load Switch is a vital component in modern electrical power distribution systems. Its advanced features, robust safety mechanisms, and maintenance-free operation make it an ideal choice for various applications, ensuring reliable and efficient management of electrical loads. With its compact design and multi-functional capabilities, it supports the growing demand for efficient energy management in both industrial and commercial settings.