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Wanlida High voltage variable speed drive(VSD)
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 etcCement: 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, etcUrban water supply: Water delivery pump, water intake pump, water supply pump, sewage treatment industry, self-fractionating pump etcMinerals & Mining: Mud pump, ventilation fan, belt conveyor, slurry pump etcOthers: Loads such as fan, pump and compressor in pharmaceutical, paper making and wind tunnel test.Especially for: Fan and Pump
Power Plant | Pump, Fans |
Steel Plant | Fans |
Cement Plant | Fans |
Product Structure
Wanlida Series High voltage variable speed drive(VSD) consists of By-pass cabinet, Transformer cabinet, power unit cabinet and controller cabinet from left to right.
Technical advantages
No need of extra output filtering deviceDirectly driving the general medium voltage synchronous or asynchronous motor and the temperature of the motor will not be increased.No need of motor derating operationNo dv/dt damage to insulation of motor and cableNo torque ripple induced by harmonics, and the service life of motors and mechanism devices can be extendedNo cable length limited when voltage drop is in the allowable range.Besides the above advantages, Wanlida High voltage variable speed drive (VSD) has the following functions and features:
Protection of overload, overheat, over-current, open-phase, grounding, over-voltage, negative sequence.Current limited functionInterlock protection of control power supplyTwo sets of control power hot standby for redundancyPower cell by-pass functionControl cabinet automatic bypass functionCabinet door opening alarm functionLock-phase functionSynchronizing switch function between variable frequency and power frequency (optional) Soft start of motors, no impact to mechanical equipment and networkVoltage 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 isolatedInner set PID regulator, can realize running in closed-loopMultiple 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 faultCompact construction, reasonable layout (can do customer-design)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( High voltage variable speed drive-VSD)
Series No | Parameters | Value |
1 | HVF Capacity(KVA) | 250~8750kVA |
2 | Power of adaptive motor(KW) | 200~7000KW |
3 | Input Frequency(Hz) | 45~65Hz |
4 | Rated input voltage(kV) | 3/3.3kV/4.16kV/6/6.6kV/10/11kV (+15%~ -35%) |
5 | THDi at power grid | <3% (Permissible value≤4%) |
6 | THDu at output side | <3% (Permissible value≤5%) |
7 | Input power factor | >0.95%(>20% of rated load) |
8 | Efficiency | >97%(under a rated load) |
9 | Output frequency(Hz) | 0.5~120Hz |
10 | Output frequency resolution | 0.01Hz |
11 | Rated output current(A) | 36~600A |
12 | Overload capability | 120%(1min), 150%(3s), 200%(Immediate protection) |
13 | Control mode | V/F control or Vector control |
14 | Logical control I/O signal | 16 channels respectively |
15 | Analog input | 0~10V/4~20mA |
16 | Analog output | 0~10V/4~20mA Optional (2 channels) |
17 | Boolean input/output | Communications/Default point (expandable) |
18 | Acc & Dec time (S) | 0.1~3000s |
19 | Communication with host | CAN, Profibus, Modbus, RS232, RS485 etc |
20 | Cooling mode | Forced air cooling |
21 | Storage temperature | 00C~450C |
22 | Ambient temperature | -350C~+450C |
23 | Ambient humidity | 95%, no condensation |
24 | Protection grade | IP40 |
25 | Noise | <70DB |
Factory Acceptance Test Platform
Wanlida built the first-class high voltage and big capacity High voltage variable speed drive(VSD) test platform to realize Factory full load test before delivery.
High voltage variable speed drive-VSD