Ring Main Unit Grounding Switch, Electric High-Voltage AC Grounding Switch

• Usage: Working Earthing, Earthing System, Protection Earthin
• Working Voltage: High Voltage
• Application: High Voltage Transmission Line
• Earthing Method: Direct Earthing Method
• Material: Hot Dip Galvanized Steel
• Symbol: TT
• Model NO.: JN22B-40.5
• Certification: ISO9001
• Size: Small
• Brand: Maiyu Electric
• Rated Voltage: 40.5kv
• Rated Short-Time Withstand Current: 31.5
• Rated Short-Circuit Closing Current: 80ka
• Rated Peak Withstand Current (Dynamic St: 80ka
• Transport Package: Wooden Box
• Specification: 37*33*23mm
• Origin: Yueqing City, Zhejiang Province, China
• Production Capacity: 6000

Product Description

 

Company Profile

Zhejiang Maiyu Electric Co. , Ltd. is a professional manufacturer, high voltage vacuum circuit breaker series, indoor high voltage vacuum circuit breaker series, load switch series, lightning arrester series, high voltage disconnector series, drop fuse series, grounding switch series, cable box series and other electrical equipment companies, the company is composed of a group of people engaged in electrical industry for many years, with professional technical research and development and product sales team,

perfect production equipment, integrity management, strict quality control.

 

Product Description

1. Overview
JN22-12/40 indoor high-voltage grounding switch (hereinafter referred to as grounding open) is a horizontal product with high technical parameters and performance developed by Xi'an High Voltage Electrical Appliance Research Institute. After assessment, its performance conforms to the provisions of GBl985 "AC High Voltage Isolation Magnetic and Grounding Switch", suitable for 40.5kV, AC 50Hz power system, can be used with KYND-40.5 model and other types of high-voltage switchgear, and can also be used as grounding protection for high-voltage electrical equipment maintenance.
Second, the use of environmental conditions
1. Ambient air temperature: upper limit +40 degrees, lower limit -30 degrees;
2. Altitude: no more than 1000 meters;
3. Humidity conditions: the average daily relative humidity does not exceed 95%;
4. The average monthly relative humidity does not exceed 90%;
5. Seismic intensity: no more than 8 degrees;
6. Pollution level: Class II.

Certifications

 

 

Product Parameters

Main technical parameters:
project		unit	data
Rated voltage		KV	40.5
Rated short-time withstand current		KV	31.5:40
Rated short-circuit duration		S	4
Rated short-circuit closing current		KA	80
Center distance between poles		KA	80
Rated insulation level	1min power frequency withstand voltage	mm	300-350-400
	Withstand voltage for lightning impulses	KV	Ground-to-ground, interphase/interstage	42/48 75/85

 

Installation Instructions

Detailed Photos