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
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    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
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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

Summary

DDX1 series of short-circuit current limiter products cleverly

exploit explosive cutting technology, current-limiting fuse

technology, high voltage insulation technology and electrical 

measurement and control technology to give product the

capability of both large current conduction and super-strong 

fault breaking. It makes the product an ultra-high-speed switch

that can limit short-circuit current in the first half wave. Main 

functions: protect the main equipment of electrical system,

protect power grid safety, saving energy and reduce

consumption, optimize system structure and the operation 

mode, improve power quality and power supply reliability, etc.



Rated voltage:0.4kV-40.5kV

Rated current:630A-6300A

Rated short circuit breaking capacity:Achievable 200kA

The total breaking duration:<10ms

Current limiting coefficient:15%-50%



首半波短路电流限制器   Products with higher rated voltage and higher rated 

current can be specially customized according to the 

users' requirements.


   

First half short circuit current limiter
    • 10kV Short Circuit Current Limiter
    • ： 10kV Short Circuit Current Limiter
    • ： 2018 - 04 - 28
    • New：
    • 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 ...
    • DDX1 short-circuit current limiter (abbreviated as current limiter) is an ultra-high-speed switch with strong short-circ...
    More>>
    • 35kV Short Circuit Current Limiter
    • ： 35kV Short Circuit Current Limiter
    • ： 2018 - 04 - 25
    • New：
    • 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-circu...
    • DDX1 short-circuit current limiter is an ultra-high-speed switch with strong short-circuit current breaking ability. The...
    More>>
    • DGXK2 Large-capacity High-speed Switching Device
    • ： DGXK2 Large-capacity High-speed Switching Device
    • ： 2018 - 09 - 16
    • New：
    • 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...
    • What is DGXK2? DGXK2=DDX1+ Switch Cabinet with Different ConfigurationsThe main electrical wiring scheme is as followsTh...
    More>>
    • DC Short Circuit Current Limiter
    • ： DC Short Circuit Current Limiter
    • ： 2018 - 06 - 14
    • New：
    • The quick action mode and switching-off principle of the DC short-circuit current limiter is the same. It would be switched off before the instantaneous current of short-circuit current gets to the ex...
    • The quick action mode and switching-off principle of the DC short-circuit current limiter is the same. It would be switc...
    More>>
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Contact us /
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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