Zhuhai Wanlida Electric Co., Ltd.

Zhuhai, GuangDong, China

We are offering 3kv high voltage frequency inverter. It is very suitable for motor speed regulation and energy saving solutions, especially for high voltage motor of fans and pump. 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 users 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 users 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 tis dsp f28335 and alteras fpga of ep3c to realize powerful processing capacity; sampling adopted ads 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 noparametersvalue 1hvf capacity(kva)2508750kva 2power of adaptive motor(kw)2007000kw 3input frequency(hz)4565hz 4harmonics contents injected to power grid0.95%(>20% of rated load) 7efficiency>96%(under a rated load) 8output frequency(hz)0.5120hz 9precision of output frequency0.01hz 10rated output current(a)36600a 11overload capability120%(1min), 150%(3s), 200%(immediate protection) 12control modev/f control or vector control 13analog input010v/420ma 14analog output010v/420ma optional (2 channels) 15boolean input/outputcommunications/default point (expandable) 16acc & dec time (s)0.13000s 17altitude

We are offering 6kv high voltage frequency inverter. It is very suitable for motor speed regulation and energy saving solutions, especially for high voltage motor of fans, pump. 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 users 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 users 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 tis dsp f28335 and alteras fpga of ep3c to realize powerful processing capacity; sampling adopted ads 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 noparametersvalue 1hvf capacity(kva)2508750kva 2power of adaptive motor(kw)2007000kw 3input frequency(hz)4565hz 4harmonics contents injected to power grid0.95%(>20% of rated load) 7efficiency>96%(under a rated load) 8output frequency(hz)0.5120hz 9precision of output frequency0.01hz 10rated output current(a)36600a 11overload capability120%(1min), 150%(3s), 200%(immediate protection) 12control modev/f control or vector control 13analog input010v/420ma 14analog output010v/420ma optional (2 channels) 15boolean input/outputcommunications/default point (expandable) 16acc & dec time (s)0.13000s 17altitude

We are offering wanlida medium voltage ac drive will be your best energy saving product for motors, good product will save more money for you. 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 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 plantpump, fans steel plantfans cement plantfans product structure wanlida series medium voltage ac drive 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 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 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. 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.