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Short circuit protection scheme for generator outlet or transformer low voltage side

Typical application scheme of DDX1 short circuit current limiter in generator outlet or the LV side of transformer

2018 - 05 - 01
Typical Application Scheme of DDX1 Short Circuit Current Limiter Bypass Current Limiting Reactor

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 main wiring scheme of DGXK2 (cabinet assembled of DDX1 and related high voltage electrical equipment)4. Typical application scheme of DDX1 short circuit current limiter which is used in generator outlet or transformer low voltage side

2018 - 05 - 08
Application Scheme of DDX1 Short Circuit Current Limiter in Contact line

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 buses and reduce the short-circuit current by about 50% caused by the feeder switch.So, the short-circuit current i1 ( or i2 ) provided for only one transformer could be controlled within the safe range of the feeder switch. ( For the structure and principle of DDX1 short-circuit limiter, please refer to its specification ). The electrical diagram of the short-circuit current limiter after ...

2018 - 05 - 01
Typical application scheme of LH300 arc light protection system

LH300电弧光保护系统典型应用方案：电弧光探头 M1~Mn：电弧光信号转换模块 Trip1：跳主变进线开关 Trip2：跳10kV母联开关 Trip3：跳主变高压侧开关 Trip4：DDX1限流器启动信号

2018 - 05 - 08
Typical application scheme of LH100 intelligent dehumidification system

Typical application scheme of LH100 intelligent dehumidification system

2018 - 05 - 01
Technical Consulting Service

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.

2018 - 05 - 08
After-sales service

我们根据客户的需求，提供专业的售后服务，包括：设备现场安装和调试、设备维修、设备检测、设备故障诊断、备品更换服务、设备现场施工、设备现场投运及技术培训等。现场安装和调试根据项目的执行时间表，我们选派拥有专业资质和丰富经验的现场工程师抵达用户现场，为用户提供设备现场安装的指导工作，针对现场设备的调试，由我们公司的现场工程师完成设备的调试任务。我们的现场工程师可以满足您对于系统或设备的任何安装、调试的需求。设备维修我们选派专业维修服务人员提供设备维修服务，我们可以为用户提供设备运行建议，我们可以保证设备能够顺利启动，我们可以为设备维修记录提供可追溯性服务。设备检测我们选派专业电气工程师对设备进行检测服务，我们采用专用仪器、仪表对设备进行全方位检测，及时帮助您预防配电系统中设备的各种问题，为设备工作的连续性提供预防性的保障。设备故障诊断针对设备的故障，我们拥有多年的、丰富的故障诊断经验。我们将派出经验丰富的电气工程师，采用专业的仪器、仪表，为您解决设备的故障问题。备品更换服务我们提供优质的备品更换服务，我们利用蓝河电气常用备件库的设备，以及按照用户特定的要求，帮助您及时更换所需的备件，最大限度的降低设备不投运带来的损失。设备现场施工、投运服务蓝河电气的专业服务人员，针对各个行业特点及不同的现场环境状况，为您提供专业的现场施工服务，以确保设备与系统之间安全的连接，确保设备安装符合相关标准。同时，我们还提供设备投运服务。技术培训服务蓝河电气拥有一批经验丰富的培训师，他们在电力系统及设备管理培训上有数年的专业经验。蓝河电气可以为用户提供全面的、系统的产品理论及应用专业培训，也可以根据用户的要求提供灵活的个性化培训。

2018 - 05 - 08
Installation and Debugging Service

The senior installation service team of Lanhe Electric has worked out a detailed installation and debugging outline according to the specific installation method of the customer's project site, and provides you with professional installation and debugging services according to the steps of the installation and debugging outline to ensure the safe and stable operation of the equipment. Installation and commissioning services include: preparation of installation plan, installation inspection, equipment testing, equipment commissioning and acceptance, etc.We can provide users with traceability of installation and debugging services.

2018 - 05 - 08
Maintenance service

As a professional equipment manufacturer, Lanhe Electric has an independent equipment maintenance service department, which provides preventive maintenance and advanced predictive diagnosis for the supplied electrical equipment to ensure a safe and stable operation of the electrical equipment and effectively reduce the risk of equipment failure. At the same time, we can also provide customers with various service commitments to ensure response within 4 hours after receiving the user's demand, reply within 24 hours or send full-time technical service engineers to the site to solve the problem.Features of maintenance1.Effectively reduce the failure rate of equipment and bring benefits to users2.Regular maintenance can prolong the service life of the equipment.3. The potential safety hazard of the equipment can be found in time, and the potential safety hazard of the equipment can be eliminated in time4. Maintenance plan will help managing the operation of equipment and tracing the st...

2018 - 05 - 08
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