Medium Voltage Drive VFD 1400KW 6.6KV HIVERT-Y 6.6/154
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- Loading Port:
- Tianjin
- Payment Terms:
- TT OR LC
- Min Order Qty:
- -
- Supply Capability:
- 100000 unit/month
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Perfect Power Output Section
The HIVERT general MV VFD adopts the power cells connected in series and voltage overlapping method (i.e. Power cells multi-level cascade technology), it can output the perfect PWM sinusoidal waveform (see Figure 2 and Figure 3). It has the following advantages:
1. No need for the additional output filter
2. Directly driving general synchronous or asynchronous motor
3. No de-rating operation on the motor
4. No dV/dt stress on the insulation of motor and cables
5. No torque ripple, extending service life of motors and mechanism
6. No cable length restriction within the acceptable voltage drop.
The general MV VFD has the following protection functions and features:
Overload and over-current
Phase loss and grounding
Over voltage
Overheat
Current limit
Redundant control power supply
Cell Bypass (optional)
Cabinet door alarm
Phase-Lock function
Synchronous Switching between VFD and Grid system
Soft start of motor
High efficiency >98% (VFD at full-load)
Electrical Isolation by the optic fiber
Built-in PID regulator
RS485 communication with the protocol, Modbus as standard, optional Profibus-DP, Ethernet,etc
Accurate fault records, easy to check fault history
Compact structure and layout, customized design is available
- Q: What is the number of parameters of the motor frequency of the Siemens inverter?
- It is best to provide the model of the inverter Oh!
- Q: Laptop power adapter current is not the same alternative?
- because the output power is not enough, will burn. Note the voltage polarity!
- Q: Can the inverter stop intermittently during operation? If so, how to connect and set up
- and the corresponding function of these terminals, you have to in the inverter Set up.
- Q: Motor nameplate on the standard 2P, I set the number of motor pole in the inverter, is set 2 or 4 pole?
- n the motor pole, an Antarctic (S pole), an Arctic (N pole), calculate a pair of poles, the number of pole pairs is how many such "pairs" (S pole + N pole). 2 pole motor --- pole pairs 1 = P = 1,4 pole motor --- pole pairs 2 = P = 2, and so on.
- Q: What are the differences and links between the soft starters and the frequency converters, and their respective principles and uses?
- The frequency changer mainly consists of rectifying (alternating current direct current), filtering, re-rectifying (direct current alternating current), braking unit, driving unit, detecting unit micro-processing unit and so on. Motor asynchronous speed expression bit: N = 60 f (1-s) / p (1) Where n --- the speed of asynchronous motor; f --- the frequency of asynchronous motor; s --- motor slip; p --- motor pole pairs. From the formula (1) we can see that the output speed of the motor is related to the input power frequency, slip rate and the number of pole pairs of the motor. Therefore, the direct speed regulation mode of AC motor mainly has variable speed (adjustment P), rotor Resistance speed control or cascade speed or internal feedback motor (adjust s) and frequency control (adjust f) and so on. And we now use the most widely used is the frequency control, from the speed n is proportional to the frequency f, as long as the change in frequency f can change the motor speed, when the frequency f in the range of 0 ~ 50Hz, the motor speed adjustment range is very width. The inverter is to change the motor power frequency to achieve speed adjustment, is an ideal high efficiency, high performance speed control means.
- Q: Servo control system can give the inverter signal,
- but want two motor synchronization, it should be impossible, the converter does not reflect so fast, and the speed is not so stable.
- Q: Do you need to rectify before switching?
- There are two ways to convert frequency, that is, cross and cross the intersection, the latter need a direct current, need no rectification, depending on your DC situation.
- Q: 11kw 6-pole motor can be used to adjust the inverter to 1800RPM?
- Frequency conversion frequency f to 90Hz can. 1800 = 60x90 / 3,3 that is 3 pole, is 6 pole. Regardless of load.
- Q: Old printing machine transformation, 37KW6 polar frequency motor with brake, inverter 55KW, now found running,
- The frequency is too low or the brake gap is small
- Q: Three-phase two-pole motor can be used to reduce the frequency of the inverter
- Speed range adjustable, you can drop to any speed you want!
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Medium Voltage Drive VFD 1400KW 6.6KV HIVERT-Y 6.6/154
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT OR LC
- Min Order Qty:
- -
- Supply Capability:
- 100000 unit/month
OKorder Service Pledge
OKorder Financial Service
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