Shanxi Lanhe Electronic Engineering Co., Ltd.
Service Hotline: +86-29-84251056
Product Products
Recommend Products / Products More
  • 10kV Short Circuit Current Limiter
    10kV Short Circuit Current Limiter
    Release time: 2018 - 04 - 28
    DDX1-12 Rated electrical parameters of products：numberParameter nameUnitTechnical Data1Rated voltagekV122Rated currentA630-63003Rated pre-expected short-circuit breaking currentkA50-2004Current limit coefficient = cut-off current / the peak Value of Pre-expected Fault Current%15~505Insulation levelPower frequency withstand voltagekV/1min42Lightning impulse withstand voltagekV75Product Characteristics and advantages◆ Strong short-circuit breaking capability ( large capacity ): rated breaking short-circuit current is 50kA～200kA◆ Breaking speed is fast ( high speed ) :Total breaking d...
    View more>>
  • 35kV Short Circuit Current Limiter
    35kV Short Circuit Current Limiter
    Release time: 2018 - 04 - 25
    DDX1-12 Rated electrical parameters of products：numberParameter nameUnitTechnical date1Rated voltagekV40.52Rated currentA630-63003Rated pre-expected short-circuit breaking currentkA50-2004Current limit coefficient = cut-off current / the peak Value of Pre-expected Fault Current%15~505Insulation levelPower frequency withstand voltagekV/1min95Lightning impulse withstand voltagekV185Product features and advantages◆Strong short-circuit breaking capability ( large capacity ): rated breaking short-circuit current is 50kA～200kA◆Breaking speed is fast (High speed): Total breaking duration:◆The b...
    View more>>
  • Intelligent integrated dehumidification system in LH100 substation
    Intelligent integrated dehumidification system in LH100 substation
    Release time: 2018 - 04 - 28
    Basic technical principles:Intelligent integrated dehumidification system in LH100 substation adopts digital transmitter array of temperature and humidity to monitor the indoor, cable trench and outdoor average temperature and the humidity of the distribution room. Based on the data, air moisture content ( water vapor partial pressure ) and dew point temperature are calculated by the algorithm recommended by the World Meteorological Organization and the national military standard GJB1172.1. The above-mentioned basic data and calculation data are the basis for the power distribution and control...
    View more>>
  • Intelligent wireless temperature measuring system in LH200C substation
    Intelligent wireless temperature measuring system in LH200C substation
    Release time: 2018 - 04 - 28
    Product overviewProduct features and advantages:◆ One set of devices can manage up to 99 switch cabinets at the same time.◆ One switch cabinet can be equipped with 12 temperature measuring points and monitored at the same time.◆ Flexible combination of double temperature measuring probes improves temperature measuring efficiency.◆ The contact temperature measurement design is adopted, and the temperature measurement accuracy reaches ±2℃.◆ The open-loop CT energy and high-energy battery two-in-one power supply is adopted，intelligently select the power supply mode.◆...
    View more>>
  • LH300 Integrated Protection Device of Arc Light
    LH300 Integrated Protection Device of Arc Light
    Release time: 2018 - 04 - 28
    Product characteristics and advantages：◆ The electronic System is simple and efficient◆Arc light detectors have a wide range, high sensitivity and large wide-angle photosensitive probe◆ Precision arc recognition and positioning technology◆ Original current algorithm can identify the fault current as quick as possible◆ Highly flexible criterion, reliable and fast action.◆ Flexible configuration and strong adaptability:◆ Low cost and high profit◆ The life cycle of the switch cabinet is effectively prolonged◆Ensure personnel safety◆Reduce equipment damageProduct...
    View more>>
Contact us
  • Shanxi Lanhe Electrical Engineering Co., Ltd.
    TEL: 86-29-84251056

    FAX: 86-29-88318201

    E-mail:sxlhdq@126.com
product name：

LH500 Transformer neutral point new complete protection device
Listing date： 2018-04-25

LH500 Transformer neutral point new complete protection device is specially designed for 110kV and 220kV power transformer neutral points. The grounding switch, lightning arrester, rod gap and transformer into a complete set to meet the requirements of transformer neutral point grounding operation and overvoltage protection in ungrounded operation. And clamp the neutral power frequency overvoltage, at the same time prevent relay protection maloperation caused by rod gap discharge under lightning and operating overvoltage.
Product description

Product overview

Product features and advantages:

◆Thermo-explosive model disconnector adopts small action current.

◆The application of lightning arrester with low residual voltage becomes possible relying on the thermo-explosive model disconnector.

◆Compared with the traditional neutral point protection device, it has compact structure and is easy to install and maintenance.

◆On the basis of the traditional neutral point protection device, the discharge gap is increased.

◆The double-column compact structure is adopted, with small volume, beautiful appearance and easy to install.

◆It is not only suitable for newly-built projects, but also can be optimized and reformed on the basis of the original lightning arrester, which is simple and easy to implement.

Product Usage:

◆It is specially used for neutral point protection of 110kV and 220kV power transformers.

 
Recommend Products / Products
  • 10kV Short Circuit Current Limiter
    10kV Short Circuit Current Limiter
    Release time: 2018 - 04 - 28
    DDX1 short-circuit current limiter (abbreviated as current limiter) is an ultra-high-speed switch with strong short-circuit current breaking ability. The short-circuit fault can be completely cut off within 10ms after the short-circuit fault occurs and before peak value of the pre-expected short-current is arrived. It combines blasting cutting technology, current-limiting fuse technology, high voltage insulation technology, electronical measurement and control technology perfectly. It realizes quick current-limiting cutting-off of short-circuit current of power generation, power distribution a...
    DDX1-12 Rated electrical parameters of products：numberParameter nameUnitTechnical Data1Rated voltagekV122Rated currentA630-63003Rated pre-expected short-circuit breaking currentkA50-2004Current limit coefficient = cut-off current / the peak Value of Pre-expected Fault Current%15~505Insulation levelPower frequency withstand voltagekV/1min42Lightning impulse withstand voltagekV75Product Characteristics and advantages◆ Strong short-circuit breaking capability ( large capacity ): rated breaking short-circuit current is 50kA～200kA◆ Breaking speed is fast ( high speed ) :Total breaking d...
    View more>>
  • 35kV Short Circuit Current Limiter
    35kV Short Circuit Current Limiter
    Release time: 2018 - 04 - 25
    DDX1 short-circuit current limiter is an ultra-high-speed switch with strong short-circuit current breaking ability. The short-circuit fault can be completely cut off within 10ms after the short-circuit fault occurs and before the peak value of the pre-expected short-current is arrived. It combines blasting cutting technology, current-limiting fuse technology, high voltage insulation technology, electronical measurement and control technology perfectly. It realizes the quick current-limiting cut-off of short-circuit current of power generation, power distribution and power consumption systems,...
    DDX1-12 Rated electrical parameters of products：numberParameter nameUnitTechnical date1Rated voltagekV40.52Rated currentA630-63003Rated pre-expected short-circuit breaking currentkA50-2004Current limit coefficient = cut-off current / the peak Value of Pre-expected Fault Current%15~505Insulation levelPower frequency withstand voltagekV/1min95Lightning impulse withstand voltagekV185Product features and advantages◆Strong short-circuit breaking capability ( large capacity ): rated breaking short-circuit current is 50kA～200kA◆Breaking speed is fast (High speed): Total breaking duration:◆The b...
    View more>>
  • DGXK2 Large-capacity High-speed Switching Device
    DGXK2 Large-capacity High-speed Switching Device
    Release time: 2018 - 09 - 16
    What is DGXK2? DGXK2=DDX1+ Switch Cabinet with Different ConfigurationsThe main electrical wiring scheme is as followsThere are three following configurations:（1）DDX1 separate cabinet（2）DDX1+ fixed or handcart disconnector（3）DDX1+ Fixed or Handcart Vacuum Circuit BreakerDGXK2 cabinet type can refer to mature switch cabinets such as GG1A, XGN, KYN28, KYN18, etc. It can also  be non-standard designed according to specific projects and users’ requirements.
    Rated electrical parameters of DGXK2 series of products：numberParameter NameUnitTechnical Parameter1Rated voltagekV12-40.52Rated currentA630-63003Rated pre-expected short-circuit breaking currentkA50-2004Current limit coefficient = cut-off current / the peak Value of Pre-expected Fault Current%15~505Insulation levelPower frequency withstand voltagekV/1min42-95Lightning impulse withstand voltagekV75-185Product Usage◆ Bypass current limiting reactor (energy saving, consumption reduction, reactive power elimination and power supply quality improvement)◆ Parallel operation of secti...
    View more>>
View more>>
Contact us /
Shanxi Blue River Electrical Engineering Co., Ltd.
TEL：+86 029-8425 1056
FAX：+86 029 8831 8201
E-mail:sxlhdq@126.com
More
029-84251056
sxlhdq@126.com
www.niumowang.com/
Site navigation
Strategic partners
Strategic partners

Introduction

Leave your valuable comments, it's easy and fun, as long as you like!
  • Consulting category：
  • *
  • Name：
  • Company：
  • *
  • CompanyUrl：
  • MSN：
  • QQ：
  • Tel：
  • Mobile：
  • *
  • Fax：
  • E-mail：
  • *
  • Postcode：
  • Title：
  • Content：
  • *
Copyright ©2018 - 2019 Shanxi Lanhe Electronic Engineering Co., Ltd. All rights reserved.
粤ICP备09063742号-1
犀牛云提供企业云服务
Back to top
X
1

QQ设置

3

SKYPE 设置

4

阿里旺旺设置

等待加载动态数据...

等待加载动态数据...

5

电话号码管理

6

Mobile website

等待加载动态数据...

等待加载动态数据...

Expand