Wanlida Medium Voltage Ac Drive - Chinaprice: contact company for price
saving product for motors, good product will save more money
Wanlida Medium Voltage AC Drive
Energy Saving Fields
Power Generation: Induced draft fan, forced draft fan,
condensate pump, feed pump, primary air fan, secondary air
fan, booster fan, circulating pump, mill fan, slurry pump
Cement: draft fan, high-temperature fan, air blower, dust
collection fan, grinding machine etc.
Metallurgy: blast furnace blower, slurry pump, feed water
pump, dust fan, compressor etc.
Petroleum&Chemical: Water injection pump, crude oil pump,
Compressor, fan, circulation pump, etc
Urban water supply: Water delivery pump, water intake pump,
water supply pump, sewage treatment industry, self-
fractionating pump etc
Minerals & Mining: Mud pump, ventilation fan, belt conveyor,
slurry pump etc
Others: Loads such as fan, pump and compressor in
pharmaceutical, paper making and wind tunnel test.
Especially for: Fan and Pump
Wanlida Series Medium Voltage AC Drive consists of By-pass
cabinet, Transformer cabinet, power unit cabinet and
controller cabinet from left to right.
No need of extra output filtering device
Directly driving the general medium voltage synchronous or
asynchronous motor and the temperature of the motor will not
No need of motor derating operation
No dv/dt damage to insulation of motor and cable
No torque ripple induced by harmonics, and the service life
of motors and mechanism devices can be extended
No cable length limited when voltage drop is in the
Besides the above advantages, Wanlida medium voltage AC
Drive has the following functions and features:
Protection of overload, overheat, over-current, open-phase,
grounding, over-voltage, negative sequence.
Current limited function
Interlock protection of control power supply
Two sets of control power hot standby for redundancy
Power cell by-pass function
Control cabinet automatic bypass function
Cabinet door opening alarm function
Synchronizing switch function between variable frequency and
power frequency (optional)
Soft start of motors, no impact to mechanical equipment and
Voltage source High-high variable frequency drive, it can
realize No-step speed regulation, which makes the typical
motors into intelligent motors.
High quality power input: By phase shifting of the secondary
winding and multi-pulse diode rectifier, isolated powers can
be acquired and supplied for power cells. (18 pulses for
3/3.3kV, 30/36 pulses for 6/6.6kV, 48/54 pulses for 10/11kV)
By using the technique of multi-pulse rectifier, the
harmonic current could be eliminated greatly.
Power cell communicate with controller through optic-fiber,
completely electric isolated
Inner set PID regulator, can realize running in closed-loop
Multiple communication methods with host computer, isolated
RS485 interface, standard MODBUS RTU, communication
protocol, PROFIBUS DP (optional), industrial Ethernet
communication protocol (optional)
Accurately fault records, can inquiry information and locate
Compact construction, reasonable layout (can do customer-
Very good protective design to dust, ferrum pulveratum, acid
mist, moisture etc.
Bypass cabinethas a function of "five-protection",
meanwhile, it has a pressure relief channel to ensure the
safety of operators.
Modularized design of power units, interchangeable and easy
to produce and repair.
Technical parameters(Medium Voltage AC Drive)
Power of adaptive motor(KW)
Rated input voltage(kV)
3/3.3kV/4.16kV/6/6.6kV/10/11kV (+15%~ -35%)
THDi at power grid
<3% (Permissible value≤4%)
THDu at output side
<3% (Permissible value≤5%)
Input power factor
>0.95%(>20% of rated load)
>97%(under a rated load)
Output frequency resolution
Rated output current(A)
120%(1min), 150%(3s), 200%(Immediate protection)
V/F control or Vector control
Logical control I/O signal
16 channels respectively
0~10V/4~20mA Optional (2 channels)
Communications/Default point (expandable)
Acc & Dec time (S)
Communication with host
CAN, Profibus, Modbus, RS232, RS485 etc
Forced air cooling
95%, no condensation
Factory Acceptance Test Platform
Wanlida built the first-class high voltage and big capacity
Medium voltage AC Drive test platform to realize Factory
full load test before delivery.
- Posted By: Zhuhai Wanlida Electric Co., Ltd.
- Phone: 867563395623
- Address: Wanlida Relay Protection Industrial Park, No. 1 Te, Zhuhai, China
- Website: http://www.zhwld.com/en
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
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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