Wanlida Adjustable Speed Drive

We are offering wanlida adjustable speed 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 etc
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.

working principle

wld-hvf series medium voltage inverter adopts power units in series and overlapping technology to obtain mv directly by means of overlap wave. Low voltage power unit is an actually improved motor variable frequency inverter, which takes full advantage of mature technology. Wld-hvf belongs to high-high voltage source inverter, the customer can connect high voltage (3610kv) directly to wld-hvf, then wld-hvf output high voltage (3610kv) correspondingly. Wld-hvf consists of phase-shifting transformer, power unit cabinet and controller, for example:

6kv series: consisting of 15 ac power units with 690v. Every 5 power units are connected in series to form one phase (phase voltage 3450v), 3-phase y-type connection, so the line voltage can reach to 6kv.