3/3.3kV/6/6.6kV/10/11kV Compact AC VFD Drive
- Ref Price:
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- Loading Port:
- Dalian
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 1 unit
- Supply Capability:
- 10000 unit/month
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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 (3/6/10KV) directly to WLD-HVF, then WLD-HVF output high voltage (3/6/10KV) 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.
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
Patented pre-charge technology
The pre-charging function can effectively control the charging speed of the capacitors, and thus charging shock can be prevented. Together with IGBT intelligent driving technology, the innovations can double the lifetime of the capacitors, from 5 years to 10 years for instance. The maintenance cost can be lowered significantly.
Patented automatic recovery technology
With real-time monitoring, the VFD system can identify the causes of power cell bypass, and automatically restarts once it detects the problems are fixed. It ensures equipment to operate continuously and stably when the bus power supply has instantaneous failure.
Patentedventilation and heat dispersion method
Our VFD’s ventilation system is centralized and vertical. It has significant advantage over the distribution type in terms of temperature field control, air flow distribution, and wind speed uniformity. Since the capacitor units are located at the ventilation ducts, it is estimated that the lifetime of capacitor can be doubled, and thus the overall system service time is prolonged with this cooling mechanism.
- Q:The laptop power adapter is burned
- You this situation or the first adapter to try, it is likely that the adapter power shortage. If you change the adapter or so, then your problem is big, there may be your laptop to protect the isolation circuit and the charging circuit is a problem, in the insurance repair is free, if the insurance, and to be afraid of a little fear Small expensive, the adapter to buy a cottage on the line, as long as tens of dollars.
- Q:Laptop power adapter leakage
- Not a leakage of electricity, switching power supply design is the need for anti-interference caused by the leakage current, a lot of adapters have this phenomenon, but no harm to the human body is safe, you do not have to buy to replace, the original is good. If you have a protective ground at home, then you can not feel the leakage, because the leakage current from the protection of the ground to the earth, and really leak, then your home leakage protector on the trip.
- Q:The motor is 2 pole with the inverter frequency to 50hz why the speed is only 1500 rpm
- Hello, poles (a pair of pole) motor, the theoretical speed of 50 rpm when the theoretical speed of 3000 r / min, if the display shows only 1500 rpm, it is possible to have a motor shaft speed or speed device Yeah, gear ratio of 2 to 1 ,
- Q:ASUS power adapter Acer can use it
- 2. Is the adapter's output current consistent with the notebook's requirements? (Or a little bit of the current is also not.)
- Q:Can the laptop 1.3a power adapter be used on a 1.5a device?
- Theoretically impossible, because the power is small, but if it is a short period of time is possible, a long time to die.
- Q:What is the laptop adapter
- 1, laptop adapter, that is, laptop charger. The traditional notebook charger can only output a single voltage to a type of notebook computer charging, the industry said that the traditional laptop power adapter for the single-band notebook charger.
- Q:Lenovo laptop power adapter side of the feet which is positive
- Lenovo laptop power adapter side of the mouth there are clear signs positive and negative, N on behalf of the positive, L on behalf of the negative, it is recommended to carefully look at that you can know.
- Q:What is the characteristic of the variable pole speed method?
- Edit this paragraph speed method First, variable pole alignment speed method This kind of speed control method is to change the stator winding winding way to change the cage motor stator pole pairs to achieve speed control purposes, features are as follows: with hard mechanical properties, good stability; no slip loss, high efficiency; wiring Simple, easy to control, low price; stepless speed regulation, large level difference, can not get smooth speed control; can be used with voltage regulator, electromagnetic slip clutch with the use of high efficiency and smooth speed control characteristics. This method is suitable for production machinery that does not need stepless speed regulation, such as metal cutting machine tools, lifts, lifting equipment, fans, pumps and so on. Second, the frequency control method Frequency conversion is to change the frequency of the motor stator power supply, thereby changing the speed of its synchronous speed control method. Frequency converter system can be divided into AC - DC - AC inverter and AC - AC inverter two categories, most of the current domestic use - cross - frequency converter. Features: high efficiency, no additional loss during the speed control process; wide range of applications, can be used for cage type asynchronous motor; speed range, hard and high precision; technical complexity, high cost, maintenance and repair difficult. This method is suitable for applications requiring high precision and better speed performance. Frequency conversion speed is divided into the following basic frequency and frequency above the speed, the fundamental frequency is constant torque speed control mode, the frequency above the speed is constant power speed mode.
- Q:First reduce the frequency of about one-third of the test, not the case, then appropriate adjustments!
- And the inverter is connected to the positive and negative bk-dk electrical Han Han device,
- Q:What is the frequency of `30 points
- frequency conversion By changing the AC frequency of the way to achieve AC power control technology is called frequency conversion technology
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3/3.3kV/6/6.6kV/10/11kV Compact AC VFD Drive
- Ref Price:
-
- Loading Port:
- Dalian
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 1 unit
- Supply Capability:
- 10000 unit/month
OKorder Service Pledge
OKorder Financial Service
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