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  • Motor Protection Relay For Switchgear - China

    price: contact company for price

    Wanlida protection relay of Switchgear is a new solutions

    integrating switchgear measurement, display, protection and

    control.

    Motor Protection Relays of Medium voltage switchgear

    DM-100 series of switchgear intelligent protection,

    measurement, display and control device is the product

    developed by Zhuhai Wanlida Electric Co., Ltd, combining

    with many years of operational experiences in power industry

    and by the effective integration of switchgear measurement,

    display function and miccroprocessor-based relay protection

    and control functions.

    Firstly create segregated installation mode

    DM-100 switchgear intelligent protection, measurement,

    display and control device is designed by the main body of

    device and human-computer interface segregation.

    The main

    body of the device can be independently installed in the

    instrument room of switchgear, and the large number of

    wiring connected with control cable and analog signal

    acquisition cable can be directly connected with terminal

    strip within the instrument room, the man-machine interface

    of the device can be installed on panel of instrument room

    so as to focus on various human-computer interaction

    function and communicate by Ethernet with protective main

    body.

    It not only reduces the pressure of protective device

    on the panel, but also greatly reduces the setting of over-

    door cable.

    Device features:

    Originally created "protection", "measurement and display"

    integrated products.

    with sophisticated switchgear

    intelligent collection and control function.

    It uses real-time multi-task operating system and C++

    programming techniques and can carry out on-line programming

    and simulation.

    It uses large-screen color LCD with beautiful display, and

    is easy to be operated.

    The user-defined buttons below the

    screen define different functions combining with different

    menus, which is easy to be operated.

    Meanwhile, each menu

    offers help function to prompt the operation method of the

    menu.

    The communication uses dual-RS485 interfaces and dual

    Ethernet interfaces.

    It supports power industry standard

    code IEC-60870-5-103 and IEC-60870-5-104 communication

    protocol.

    It can easily achieve redundant communication by

    providing more communication interfaces.

    It has harmonic analysis function of two-way selectable

    channels.

    Device functions

    1 - Intelligent measurement and display functions:

    Dynamic simulation screen

    Temperature and humidity control

    Live display and lock

    Voice misoperation protection and dynamic display

    Body inductive probe

    Lighting within the switchgear

    2 - Measurement and control functions:

    14-way telesignalisation open collection and record

    IA, IB, IC, UAB, UBC, UCA, P, Q, COSΦ, U0, I0, F remote

    measurements uploading.

    It has two-way 1~11 times, i.e. a total of 22-way to upload

    harmonic waves so as to meet the monitoring requirements

    of power quality.

    2-way bidirectional-integral electrical energy (Active Power

    and Reactive power).

    SOE event records

    One-way 4~20mA output

    3 - Other features

    The independent operation circuit with electrical trip

    protection

    Faults recorder

    Small current circuit selection function

    10 times trip records and 40 times event records

    Many sets of constant value zones

    Protective function

    DM-100M (motor)

    Current protection in three-section voltage lockout

    direction

    Quick-break protection



    Inverse-time overcurrent protection

    Overcurrent protection

    Overload protection

    Current protection in direction of zero sequence voltage

    lockout

    √ (no direction)

    Zero sequence current protection

    Zero sequence overvoltage alarm

    Zero sequence voltage lockout zero sequence current

    protection at high-voltage side

    Zero sequence constant time lag (inverse time lag) current

    protection at low-voltage side

    Locked protection

    Overheat protection

    Negative-sequence constant time lag (inverse time lag)

    overcurrent protection

    Low voltage protection

    Over-voltage protection

    Unbalanced current (voltage) protection

    Under-voltage protection

    Body protection

    Low-cycle load shedding

    Three-phase one-time reclosing

    Post-acceleration

    Bus bar charging protection

    Technology shunt tripping (four-way)

    PT broken line monitoring

    Pt switch in parallel


    Company Contact:


    • Phone: 867563395623

    • Address: Wanlida Relay Protection Industrial Park, No. 1 Te, Zhuhai , China

    • Email: Email


    Published date: August 22, 2013

    • Business Description: Incorporated in 1991, Zhuhai Wanlida Electric Co., Ltd. (www.

      zhwld.

      com)

      ('the Company'), is located in Relay Protection Industrial Park, No.

      1

      Technology Road, Science and Technology Innovation Coast, High tech

      Zone, Zhuhai City, coving a land area of approximately 60 thousand

      square meters (including Park 1 and Park2).

      The Company was listed for

      equity financing on November 13, 2007 (equity securities abbreviated as:

      Wanlida stock certificates, code: 002180), with a registered capital of

      124, 980, 000 Yuan.

      The Company keeps on her aggressive 'production,

      study, research and application' co operation with the famous academies

      such as Tsinghua University, Chinese Academy of Sciences and Central

      China University of Science and Technology and carries out relevant

      technology innovation.

      It is a national high tech enterprise that deals

      with specialized development, production and sales of substation

      integrated automation systems and Medium voltage variable frequency

      drives, Medium voltage magnetically controlled soft starters, Static

      synchronous compensator(STATCOM/SVG), Static VAR compensator(SVC),

      Active power filter(APF/AHF), Thyristor switched capacitor bank

      (TSC/TSF), High voltage direct current light transmission systems etc

      power electronic equipments.

      In addition, the Company is known as a

      famous manufacturer and backbone enterprise of transformer substation

      integrated automation and power electronic equipments fields in China,

      and it also acts as fresh blood in the field of energy conservation and

      emission reduction.

      Wanlida passed the ISO9001 quality system certification, ISO14001 Environment Management System Certification and OHSMS18001 Occupation Health &Safety Management System Certification; All products passed the test of sated authoritative inspection bureau.

      And it had been rated as 'National High and New Technology Enterprise', 'Enterprise Recommended by State Economic and Trade Commission for Reconstruction of Urban and Rural Electric Grids', 'Key Software Enterprise Covered by National Program', 'Excellent enterprise of China', 'First choice Manufacturer for Electric Framework Protocol Sponsored by CNPC', 'Excellent Enterprise of Guangdong Province', 'Optimum Good faith Enterprise of Guangdong Province', 'Contract honoring Enterprise of Guangdong Province', 'Top 10 Private Enterprises of Zhuhai City', and 'Enterprise with Grade AAA Bank Credit '.

      Wanlida has a very strong R&D teamwork which has a population of over 100 with doctor's degree, postgraduate degree and bachelor's degree etc, and all of the products are designed strictly according to IEC standards; Wanlida has modern standard workshops, it brought advanced SMT production lines and wave soldering machines into company from abroad, and built the first class high voltage and big capacity power electronic equipments assembling and test platform, which is able to realize full load test and ensure that all of products have exquisite technics and reliable quality; At present, Wanlida covers all of domestic areas except Hongkong, Macau and Taiwan, and it also sells the products to Southeast Asia, Middle East, South America, Africa etc over 20 countries.

      The Company aims to grow into the most dedicated electric automation enterprise in the world, and commits itself to building the aircraft carrier of power electronic energy efficiency products.

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