15 visiting now: 9 USA USA flag 4 China China flag 1 Sweden Sweden flag 1 UK UK flag

Highlighted Companies

  • Suzhou Rico Machinery Co., Ltd (China): Rico CNC supplies cnc router, woodworking cnc machines, stone cnc routers, atc cnc routers, laser... http://www.ricocnc.com
  • A Hay & Grain Co Inc (USA): involved in international trade import export. At Anderson Hay we offer a wide variety of feed... http://www.anderson-hay.com/

  • Wanlida 10kv High Voltage Variable Frequency Converter - China

    price: contact company for price

    Product Structure

    1. Bypass Cabinet (Optional)

    The by-pass cabinet or switching cabinet may employ isolating breaker, vacuum contactor or the combination, depending on the user’s working conditions. The function of by-pass cabinet is to put the motor into operation in industry frequency grid after the WLD-HVF exits, so as to ensure the continuity of user’s production. The switching cabinet is designed to divert the WLD-HVF output to different motors.

    2. Transformer Cabinet

    Used for installation of Phase-shift transformer, it is dry type transformer with functions of temperature display and over-heat protection, also with insulation grade of H. The secondary multi-winding output provides phase-shift power supply to the power unit. This can greatly improve the current waveform on grid side and reduce the harmonic interference of the equipment to power grid lower of the National Criterion.

    3. Power Unit Cabinet

    Used for installation of power units, which adopted imported high quality components inside, all power units are installed on the sliding seat, it is very easy to replace.

    4. Control Cabinet

    Used for installation of low voltage control components, there are controller, PLC, UPS, Electric siren, DC 24V power supply, Control Power Source Switch, Wiring Terminals, Touch Screen, Operation Button etc.

    The equipment adopted fiber optical communications, which has a very good EMI restraining performance; The transformer, control cabinet and all power units, are built in temperature protection, so it will be maintenance free.

    Technical Features

    Voltage source High-high frequency inverter, it can realize No-step speed regulation, which makes the typical motors into intelligent motors.

    Low harmonics input and high power factor, the typical value for power factor is 0.95 through whole speed regulation, even more higher, no need for power factor compensation.

    WLD-HVF output few harmonics, the motor does not generate extra heat and noise.

    Modularized design of power units, interchangeable and easy to produce and repair, the equipment can find any fault exactly based on advanced diagnostic procedures in MPU.

    The inverter still can operate even the faults for part of power units exists, if there are faults happen for inverter, the system can switch to power frequency through bypass function.

    Applicable to all kinds of power grid at home and abroad and suitable for typical high voltage motor.

    Colorful touch screen, easy to operate and maintenance.

    Able to realize remote control, DCS operation and communications with Host, and support all kinds of communications interfaces such as CAN, Profibus, Modbus, RS232, RS485 etc.

    Applied latest components, master control chip adopted TI’s DSP F28335 and ALTERA’s FPGA of EP3C to realize powerful processing capacity; Sampling adopted AD’s AD7606 with 16 bit to ensure control accuracy of the system.

    The switchgear can satisfy safety requirements, and the pressure-relief channel of high voltage switch can ensure safe use of operators.

    Technical Parameters

    Series No




    HVF Capacity(KVA)



    Power of adaptive motor(KW)



    Input Frequency(Hz)



    Harmonics contents injected to power grid



    Rated input voltage(KV)

    3KV/6KV/10KV ±10%


    Input power factor

    >0.95%(>20% of rated load)



    >96%(under a rated load)


    Output frequency(Hz)



    Precision of output frequency



    Rated output current(A)



    Overload capability

    120%(1min), 150%(3s), 200%(Immediate protection)


    Control mode

    V/F control or Vector control


    Analog input



    Analog output

    0~10V/4~20mA Optional (2 channels)


    Boolean input/output

    Communications/Default point (expandable)


    Acc & Dec time (S)






    Protection grade



    Cooling mode

    Forced air cooling


    Operation environment temperature






    Communication with host

    CAN, Profibus, Modbus, RS232, RS485 etc


    1. Perfect quality and service system

    The company complies with ISO9001:2008 strictly to carry out production, process etc.

    2. Pre-sale Service

    Investigate and Survey onsite; Provide Feasibility study report; Assist in equipment specification selection; Analyse estimated energy saving effect etc

    3. In-sale Service

    Provide onsite installation and debugging training, Operator training, design paper&corresponding program, energy saving estimation and measuring etc

    4. After-sale Service

    The 24-hour timely and all-round service is available for all WLD-HVF users; Providing lifetime maintenance, onsite fault diagnosis, remote diagnosis etc.

    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.

    Related listings

    • 8 Outputs Programmable Timer Relay Time Switch Xhst 20
      8 Outputs Programmable Timer Relay Time Switch Xhst 20
      Components - Relays - Changzhou Xionghua Tongtai Automation Equipment Co - China - August 22, 2013 - contact company for price

      1.It can be set separately in 24 hours system or week system 2.Communication function 3.For streetlight , neon lamp , fountain 4.Supply power AC220V , 50Hz 5.The output points are optional in every time period Multichannel control, open and close in ...

    • 8 Outputs Programmable Timer Relay Time Switch Xhst 30
      8 Outputs Programmable Timer Relay Time Switch Xhst 30
      Components - Relays - Changzhou Xionghua Tongtai Automation Equipment Co - China - August 22, 2013 - contact company for price

      1.Intelligent and digital LED(light-emitting ) timer 2.1~8 channels, programmable and arbitrary combination and arbitrary output 3.Memory storage (10years) / mechanical life 4.Panel mounting 5.Delay time unit:0.1s/1s/1min(option) 6.Power supply (220V...

    • 8 16 Outputs Programmable Timer Relay Time Switch Sx2004 1
      8 16 Outputs Programmable Timer Relay Time Switch Sx2004 1
      Components - Relays - Changzhou Xionghua Tongtai Automation Equipment Co - China - August 22, 2013 - contact company for price

      1.New high speed MCU chip with great speed 2.Big capacity of program and stable and reliable operation 3.Accomplishes the control of time-segment, sequential segment and the program 4.Built in 100 time relays 5.Be used in programmable fountain, progr...

    Safe Trade Tips

    • Ask for business references and check them
    • Use a payment method that offers better protection for all such as Letters of credit and verified professional escrow services. Avoid payments in advance such as money transfers
    • Verify their business via their local Chamber of Commerce
    • Search the internet using their website address, their business name, their phone and fax numbers, and their email addresses to see if you can find any feedback about them.
    • Get to know more about scams to avoid: Internet Crime Complaint Center - International Financial Scams
    • This site is never involved in any transaction, and does not handle payments, shipping, guarantee transactions, provide escrow services, or offer "buyer protection" or "seller certification"