Shanxi Lanhe Electronic Engineering Co., Ltd.
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  • 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...
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  • 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...
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  • 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...
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  • 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.◆...
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  • 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...
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Contact us
  • Shanxi Lanhe Electrical Engineering Co., Ltd.
    TEL: 86-29-84251056

    FAX: 86-29-88318201

    E-mail:sxlhdq@126.com

Technical Consulting Service

Date： 2018-05-08
Views: 97

The electrical engineers of LanHe will provide you with professional technical consulting services, including technical scheme formulation, equipment selection, system optimization, on-site technical answering, maintenance services, spare parts services, technical training services and other technical services, etc. Providing a full range of technical services for you based on equipment, systems, solutions, construction, installation and full range debugging technical services, which ensure the reliable and safe operation of the system and equipment. At the same time, according to the different needs and characteristics of users, we serve users diversified and comprehensive system solutions, and provide for them whole process technical services from the project planning to project acceptance.
栏目推荐 / Solutions
  • Short circuit protection scheme for generator outlet or transformer low voltage side
    Short circuit protection scheme for generator outlet or transformer low voltage side
    Release time: 2018 - 05 - 01
    Typical application scheme of DDX1 short circuit current limiter in generator outlet or the LV side of transformer
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  • Typical Application Scheme of DDX1 Short Circuit Current Limiter Bypass Current Limiting Reactor
    Typical Application Scheme of DDX1 Short Circuit Current Limiter Bypass Current Limiting Reactor
    Release time: 2018 - 05 - 08
    1.Typical Application Scheme of DDX1 Short Circuit Current Limiter Bypass Current Limiting Reactor2.Main configuration scheme of DGXK2 ( cabinet assembled by DDX1 and related high voltage electrical equipment )l  DDX1 short circuit current limiter + switch cabinetl  DDX1 short circuit current limiter + fixed or handcart disconnector + switch cabinetl  DDX1 short circuit current limiter + fixed or handcart vacuum breaker + switch cabinetl  DDX1 short circuit current limiter + fixed or handcart vacuum breaker + fixed or handcart disconnector + switch cabinet3.The electrical m...
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  • Application Scheme of DDX1 Short Circuit Current Limiter in Contact line
    Application Scheme of DDX1 Short Circuit Current Limiter in Contact line
    Release time: 2018 - 05 - 01
    DDX1 short-circuit limiter is equivalent to a short-circuited busbar while it is up and running, load current flows through at this moment.  When the short circuit fault happens in the feeder lines, the short-circuit current iz flowing through the feeder is the sum of the short-circuit currents provided by # 1 and # 2 transformers, ie. iz=i1+i2, which far exceeds the breaking capacity of the feeder breaker. After the DDX1 short-circuit current limiter is installed on the contact line, it can be cut off instantly within 3 ~ 5 ms. It contributes to the separate operation of two-section buse...
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  • Typical application scheme of LH300 arc light protection system
    Typical application scheme of LH300 arc light protection system
    Release time: 2018 - 05 - 08
    Typical application scheme of LH300 arc light protection system                                                ：arc detector         M1~Mn: arc signal module                                                 Trip1：Trip signal for main transformer incoming                 ...
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Shanxi Blue River Electrical Engineering Co., Ltd.
TEL：+86 029-8425 1056
FAX：+86 029 8831 8201
E-mail:sxlhdq@126.com
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