ac variable frequency drive for 3 phase water pump and blower with best quality and price
Introduction of SVF-G7 Series High-performance Vector General-purpose Frequency Inverter
1. Voltage class: 380V
2. Range of power: 0.4KW~450KW
3. Stable and reliable Control Mode
SVF-G7 series VFD communicate with PC, PLC etc upper machines, and they need the support of standard expansion cards SC-EXT1-IO. And the cards supply RS485 communication interface. Between the upper user machine and frequency inverter communicate through the international standard ModBus communication, and the upper user machine as host machine, and the frequency inverter as slave machine. The communication content could be finished as follows: send operating command to frequency inverter, setting operating frequency, changing function code parameters, reading frequency inverter operation situation, monitoring parameters, fault information, function code etc.
Input Voltage (V)
Power Capacity (KVA)
Input Current (A)
Output Current (A)
3 Phase 380V Range:-15%~20%
a. Delivery term
We will delivery for you after you done the full payment within 3 to 15 working days.
For small order by air or by express, it is 100% T/T in advance.
For large order by ocean, 30% deposit of the order value should be paid, 70% of the balance payment should be done before delivery.
Unless otherwise stated in the offer, the prices include packing in accordance with CHINSC’S customary standard of packing.
- Q:Laptop power adapter bad what is the phenomenon?
- Either the power is bad or the machine on the power supply module is bad to repair service
- Q:The emitter E of the inverter inverter module and the AC output U are not directly connected together
- Pairs of modules are connected in a phase branch
The phase output is derived from the neutral point between the modules
- Q:What is the adapter?
- Easy to join the Electronics (China) Co., Ltd. to sell the type of adapter and the purchase of different adapters:
- Q:What is the output voltage of the laptop power adapter?
- Laptop power adapter output voltage, different brands may be different.
Adapter output voltage is not a unified standard, different models are not the same notebook.
The output voltage between 12V to 20V, 19V, 20V more.
- Q:Quartet of the TA, TC terminals have positive and negative?
- The TC terminal has no positive and negative poles, which are passive programmable relays
- Q:Laptop power adapter leakage
- In fact, the adapter does not matter fake real goods, brand machine adapter are also purchased. According to my point of view, or I choose the words: casually buy one can, dozens of dollars on the line. In fact, the adapter is also worth tens of dollars, selling a few hundred dollars are also almost the same thing. Adapter is a small switching power supply, 100W or so, the value of that price.
- Q:How does the variable frequency motor output torque at very low frequencies?
- Low frequency, the motor torque is relatively low, generally VF inverter performance is good or bad, the price level reflected in this time. But there is torque to enhance the function, it will not move without moving. If no load can not start, check the motor card and other mechanical problems such as whether there is a problem.
- Q:Siemens g120 inverter torque limit what is the meaning
- Torque is a strain, the inverter can not actively control the output torque size, only according to the size of the load demand torque, the output of the corresponding torque.
- Q:What is the application of variable frequency speed control?
- In the second half of the 20th century, the power electronic devices from the SCR (thyristor), GTO (gate can be turned off thyristor), BJT (bipolar power transistor), MOSFET (metal oxide field effect transistor), SIT (electrostatic induction transistor ), SIT (Electrostatic Inductive Thyristor), MGT (MOS Control Transistor), MCT (MOS Control Gate) to today's IGBT (Insulated Gate Bipolar Transistor), HVIGBT (High Voltage Insulated Gate Bipolar Thyristor), Device To promote the continuous development of power conversion technology. Since the 1970s, pulse width modulation variable frequency (PWM-VVVF) speed control research has aroused people's attention. In the 1980s, the PWM model optimization problem, which was the core of the frequency conversion technology, attracted people's interest and made many optimization modes, in which the saddle-wave PWM mode was the best. The 20th century, the late half of the 1980s, the United States, Japan, Germany, Britain and other developed countries VVVF inverter has been put into the market and widely used.
- Q:The laptop's power adapter is broken how much it costs
- Notebook adapter only for the general repair 50-100 new general 150-250
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