MV VFD AC Motor Drive 3KV 6KV 10KV System 1

MV VFD AC Motor Drive 3KV 6KV 10KV

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Specifications of MV VFD AC Motor Drive 3KV 6KV 10KV

Direct medium voltage input and output

IGBT power units in series to obtain MV by means of overlap wave

Up to 40% saving rate

Application Fields of MV VFD AC Motor Drive 3KV 6KV 10KV

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 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, slurry pump etc

Others: 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 of MV VFD AC Motor Drive 3KV 6KV 10KV

AC Motor Drive Variable Frequency Drive consists of By-pass cabinet, Transformer cabinet, power unit cabinet and controller cabinet from left to right.

AC Motor Drive MV Variable Frequency Drive

Technical advantages of MV VFD AC Motor Drive 3KV 6KV 10KV

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 be increased.
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 allowable range.

Besides the above advantages, AC Motor Drive MV Variable Frequency 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
Lock-phase function
Synchronizing switch function between variable frequency and power frequency (optional)
Soft start of motors, no impact to mechanical equipment and network
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 fault
Compact 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 of MV VFD AC Motor Drive

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

Q: What is the application of variable frequency speed control?: Frequency control speed ratio is relatively large, in other words, the speed is accurate, smooth speed. Widely used, the basic works can be used

Q: I have a 11KW-4 pole inverter, now with the 4KW-4 pole motor, what impact?: 11KW the following can be brought, the inverter rectifier module may be broken,

Q: ASUS notebook power adapter can be universal? is it?: Under normal circumstances, as long as other ASUS notebook power adapter voltage, current and interface with your notebook the same, you can use. Not ASUS adapter even if the voltage, the interface is the same is best not to use, easy to cause damage to the computer. I suggest you can call the ASUS national service hotline to see, consult the current market can support your laptop adapter model, and then to the computer store or online purchase. If you feel that my answer is satisfied, please adopt Wo take

Q: Servo control system can give the inverter signal,: Servo motor driver can give the inverter signal, with analog output to control,

Q: Is the laptop power adapter long-haul?: As long as the power, regardless of your access to the computer, the adapter is working. In fact, not much harm, anyway, five years of notebook life, this thing as long as not deliberately to damage, will be very durable, worse than the important parts of the computer slow. As long as the big brand, nothing Even if you broke, this thing can value a few money? In fact, the proposal or pull it, on the ground stumbling ... ...

Q: What is the principle and implementation of the inverter?: How the inverter works: 1. DC can be converted into alternating current through the oscillation circuit 2. The resulting AC power is then boosted by the coil (in this case, the alternating current of the square wave) 3. Rectify the resulting alternating current to obtain a sine wave

Q: Do you need to rectify before switching?: Need to rectify. The inverter is actually an inverter, which first turns the alternating current into direct current, then switches the DC power with the electronic components, changes to alternating current, and the general-purpose inverter is equipped with a thyristor and an adjustable frequency The frequency is adjustable in a certain range, and it is used to control the number of revolutions of the motor, so that the number of revolutions can be adjusted within a certain range.The frequency converter is widely used in the speed regulation of AC motor. Technology development direction, with the development of power electronics technology, AC frequency conversion technology from theory to practice gradually mature. Inverter not only smooth speed, large range, high efficiency, start current is small, smooth operation, and energy saving effect is obvious. Therefore, the exchange frequency control has gradually replaced the traditional traditional slip speed, variable speed control, DC speed control system, more and more widely used in metallurgy, textile, printing and dyeing, smoke machine production lines and buildings, Water supply and other fields. Generally divided into rectifier circuit, flat wave circuit, control circuit, inverter circuit, and so on several major parts.

Q: Inverter 0.2KW, the motor speed requirements down to 4 turn, the motor pole 4 pole. Can the drive drive the motor?: Can, but this is a test product, the application does not try!

Q: Lenovo g450 laptop power adapter specifications is what?: Input: 100-240V ~ 1.5A 50-60Hz Output: 19V - 4.74A

Q: B2b frequency how to speed: How does changing the power frequency to change the speed of the motor? When the motor is connected to the power supply to drive the normal operation of the load, at this time to change the power frequency, such as the current frequency down, the motor armature rotating magnetic field speed will decline, the rotor conductor cutting magnetic field speed decreases, turn from the induced potential , The rotor current decreases, the torque decreases, the load on the shaft does not change, the torque will be less than the load resistance torque, the motor rotor speed decreases, the rotor conductor cutting the magnetic field line speed increases, the rotor induced potential increases, the rotor current increases, The torque rises until it is equal to the load resistance torque, and the speed is smaller than the original. After stabilizing the work, the torque of the motor is the same as that of the original. (The motor torque is the same as the load torque, the load is constant and the motor torque is not changed)

As the leader in the field of medium Voltage Variable Frequency Drive, we have been focusing on providing the integrated solutions of automatic control and energy-saving technology etc. for customers, and its skill levels and market impact of medium voltage VFD are in the world-leading positions. We have provided products and services across more than twenty countries in six continents around the world, taking up the first market share (China) in the past nine years.

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Location	Beijing,China
Year Established	1998
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Nearest Port	TIANJIN
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