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      • Liyond HANNOVER MESSE 2016 Exhibition on April 25-29
      • Liyond Electric co.,ltd attends ELEKTRO 2015 Exhibition
      • LIYOND will attend ELEKTRO 2015 Exhibition
      • Liyond will attend HANNOVER MESSE 2015 Exhibition.
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      • Liyond will attend Iran International Electricity Exhibition 2014.
      • Liyond Electric co.,ltd attends Elektro’2014 Russian Exhibition
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Yueqing Liyond Electric Co., Ltd. > News > lndustry knowledge
What is Indoor High Voltage Vacuum Circuit Breaker?

What is Indoor High Voltage Vacuum Circuit Breaker? The vacuum circuit breaker is named after its interrupting medium and the insulating medium of the contact gap after interrupting is high vacuum; it has the advantages of small size, light weight, suitable for frequent operation and interrupting without maintenance, and is more popularly used in the 3kV-40.5kV distribution network.   Read More >>

Tags: vacuum circuit breaker VCB High Voltage Circuit Breaker medium voltage switchgear Published: September 7, 2022 Comment (0)
Useful electrical tables

Configuration table of 10kV high voltage current transformer and low voltage current transformer   Read More >>

Published: February 11, 2022 Comment (0)
The composition and principle of vacuum contactor

Learn more about vacuum contactors   Read More >>

Published: November 10, 2021 Comment (0)
Standard 1000 chasis truck improvement notice

Dear Customer, According to standard work requirement, design upgrade for 1000/T and 1000/24 chasis,the changes are as follows: 1.Increase the heat emission holes(Unified into 1000/24 standard). 2.Increase the outlet holes. 3.Add locating pin 2-¢12.2 holes on rear of frame. 4.Add 4-¢4.1 holes on both sides of the middle heat emission holes. 5.Add 2-¢11 holes.   1). No match changes in the product(Wider versatility). 2). The switching time is performed according to the actual inventory operation.   Advantages: Increased performance of the chasis truck and wider application range.  2018.9.21   Read More >>

Published: September 21, 2018 Comment (0)
YUEQING LIYOND ELECTRIC – AIS main components/switchgear structure

  Read More >>

Published: April 15, 2016 Comment (0)
VZF(R)-12 series Centrally Installed Embedded Pole Vacuum Load Switch

VZF(R)-12 series Centrally-Installed-Embedded-Pole-Vacuum-Load-Switch   Read More >>

Tags: new products released Published: August 12, 2015 Comment (0)
10 kv switchgear

1、Summary The main part of 10kV switchgear includes:vacuum circuit breaker、current transformer、On-site installation of microcomputer protection device、Operating circuit accessories(handle、indicator light、pressing plate and so on)、A variety of locations of auxiliary switch.Thereinto,circuit breaker and current transformer are installed in the switchgear,Microcomputer Protection、Attachment、watt hour meter are installed in the relay room(Continue as before, there is no relay actually)on the panel,terminal board and all kinds of power supply air switch are installed in a relay interior ministry,Terminal row through the control cable or special socket to connect the circuit breaker mechanism. TO understand the secondary wiring of switchgear,we need to find two drawings:since protection principle diagram、wiring diagram provided by the manufacturer;Secondary principle diagram、wiring diagram、terminal strip diagram、principle diagram of the circuit breaker mechanism provided by the switchgear manufacturer. 2、10kV cable line in the cupboard KYN28A(GZS1)Centrally Installed Switchgear is 10 kv switch cabinet type used by the most urban substation,from a positive perspective,It obviously divides into three parts,topside is relay room,middle is circuit breaker chamber,underside is an empty room(Nothing),Bus and other high pressure equipment is mounted in the back of the cabinet put oneself in another’s position.As shown in the figure below.   Read More >>

Tags: Switchgear Published: February 8, 2014 Comment (0)

Product List

  • Earthing Switch
    • JN15 earthing switch
    • JN15A earthing switch
    • JN17 earthing switch
    • JN22 AC earth switch
  • Circuit Breaker Contact
    • Fixed contact
    • Tulip contact
    • Flat contact
    • Contact arm
  • Insulation Accessories
    • Insulated operating rod
    • Insulator and sensor
    • Contact box series
    • Insulating bushing
    • Insulate tube and cylinder
    • Other insulation
  • Switchgear Accessories
    • Charged diaplay device
    • Shutter mechanism
    • Interlocking mechanism & device
    • Cabinet light lamp
    • Block heater
    • Bevel gear
    • Electromagnetic lock
    • Guide rail
    • Chasis truck
  • Circuit Breaker Accessories
    • Secondary plug socket
    • Mechanical counter
    • Circuit breaker panel
    • Solenoid coil
    • Circuit board
    • Terminal block
    • vacuum interrupter
    • Oil buffer
  • Vacuum Circuit Breaker
    • 12kV Vacuum Circuit Breaker
    • 24KV Vacuum Circuit Breaker
    • 40.5kV Vacuum circuit breaker
  • Medium Voltage Switchgear
  • Vacuum Contactor
    • LV vacuum contactor
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  • Auxiliary Switch
  • Spring Operating Mechanism
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    • 12KV indoor load break switch
    • 24KV indoor load break switch
  • Indoor SF6 Load Break Switch Accessories
    • SF6 Load break switch
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MENU
  • Home
  • About Us
    • Liyond’s exhibition
    • Equipment and Workshop
    • Certificate
    • Culture
  • Products
    • Earthing Switch
      • JN15 earthing switch
      • JN15A earthing switch
      • JN17 earthing switch
      • JN22 AC earth switch
      • Isolating switch
    • Circuit Breaker Contact
      • Fixed contact
      • Tulip contact
      • Flat contact
      • Contact arm
    • Insulation Accessories
      • Insulated operating rod
      • Insulator and sensor
      • Contact box series
      • Insulating bushing
      • Insulate tube and cylinder
      • Other insulation
    • Switchgear Accessories
      • Charged diaplay device
      • Shutter mechanism
      • Interlocking mechanism & device
      • Cabinet light lamp
      • Block heater
      • Bevel gear
      • Electromagnetic lock
      • Chasis truck
      • Guide rail
    • Circuit Breaker Accessories
      • Secondary plug socket
      • Mechanical counter
      • Circuit breaker panel
      • Solenoid coil
      • Circuit board
      • Terminal block
      • vacuum interrupter
      • Oil buffer
    • Vacuum Circuit Breaker
      • 12kV Vacuum Circuit Breaker
      • 24KV Vacuum Circuit Breaker
      • 40.5kV Vacuum circuit breaker
    • Medium Voltage Switchgear
    • Vacuum Contactor
      • LV vacuum contactor
      • MV vacuum contactor
    • Auxiliary Switch
    • Load Break Switch
      • 12KV indoor load break switch
      • 24KV indoor load break switch
    • Indoor SF6 Load Break Switch Accessories
      • SF6 Load break switch
      • SF6 load break switch spring operation mechanism
      • SF6 Load Break Switch Housing
    • SF6 Insulated Compact Switchgear Accessories
    • G spring operating mechanism
    • SF6 spring operating mechanism
    • CT spring operating mechanism
    • VCB spring operating mechanism
  • News
    • Liyond Dynamic
      • Liyond will attend Electric Indonesia 2019 from 11-14th.September
      • Liyond will attend 2019 ELCOM UKRAINE from 09-12 April
      • Liyond attended Electrical networks of Russia-2018 Exhibition
      • Liyond’s Electrical Networks of Russia 2017 Exhibition–Successful conclusion!!!
      • Liyond will attend Electrical networks of Russia-2017
      • Liyond will attend ELEKTRO 2016 Exhibition on June 6th-9th
      • LIYOND is in 2016 Hannover Messe these days!
      • Liyond HANNOVER MESSE 2016 Exhibition on April 25-29
      • Liyond Electric co.,ltd attends ELEKTRO 2015 Exhibition
      • LIYOND will attend ELEKTRO 2015 Exhibition
      • Liyond will attend HANNOVER MESSE 2015 Exhibition.
      • Liyond attends Iran International Electricity Exhibition 2014
      • Liyond will attend Iran International Electricity Exhibition 2014.
      • Liyond Electric co.,ltd attends Elektro’2014 Russian Exhibition
    • lndustry knowledge
      • New ISO 9001:2015 Certificate of Registration
      • Standard 1000 chasis truck improvement notice
      • 10 kv switchgear
      • VZF(R)-12 series Centrally Installed Embedded Pole Vacuum Load Switch
    • Liyond Family
      • 4 days wonderful journeys in Hubei(Wuhan, Shennongjia, Three Gorges Dam, cherry blossom viewing)
      • 2018.09 OBJECT: Operating and administrative office transfer
      • 2015 LIYOND Annual Meeting
      • 2015 Wencheng,Schloss Neuschwanstein Travel
      • 2014 Liyond annual meeting
      • 2014 Xiamen four days tour,New Year’s Day
  • Support
    • Download
  • Contact Us