Fields of application
Cement, mining and minerals Grinding mills, conveyors, fans and pumps
Chemical, oil and gas Compressors, extruders and pumps
Metals Blast furnace blowers, fans and pumps
Pulp and paper Fans and pumps
Power generation Gas turbine starters, ID/FD fans and pumps
Renewable energy Wind turbines, tidal and wave energy generation
Other applications Test stands and wind tunnels
The RMVC 5100 is designed for maximum reliability, efficiency and versatility – features that have a direct impact on the customer’s cost of ownership.
Very low levels of input current harmonics with high input
∙ Sinusoidal current output to motors – no significant
temperature rise in the motor due to current harmonics.
∙ No significant motor shaft torque pulsations – kind to shaft
coupling and mechanical load.
∙ Lower dV/dt voltage stress imposed on to the motor and
cable insulation systems.
∙ Lower amplitude of PWM switching at the output
significantly reduces potential transmission line effects
when long output cables are used to the motor.
∙ Lower amplitude and frequency of PWM switching at the
output significantly reduces potential for stray currents
through the motor bearings.
∙ Use of low-voltage IGBTs which are easily obtainable,
highly reliable and well-proven.
∙ Low losses since IGBTs do not need snubber circuits and
require little switching power.
∙ Current can be switched off instantaneously in the event
of a fault in the output circuit.
∙ Modular design.
∙ Medium voltage output achieved without output transformer.
- Q:Inverter ACS355 If the speed is outside the allowable range, how to set the limit value
- Remember, 2001 this should be set to a negative number, set to a positive number of your speed will never be less than this value.
- Q:Laptop power adapter repair how much money
- Different notebook power adapter models are different, the price gap is large.
Maintenance costs to see the specific model and damage level position. Generally do not recommend maintenance, it is recommended to replace the more appropriate.
If you are not covered by the warranty period, you can repair free of charge.
Hands-on ability to recommend self-repair, pay maintenance department recommended. After all, once again a greater chance of damage.
- Q:My laptop can not use the power adapter, and can only use the battery, how is it ah,
- Depending on your question may be the problem that the laptop's internal lines may be short-circuited
1, you can go to the video online to find the same type of machine disassemble video and then repair their own
2, get to the maintenance of the place to get on nothing
- Q:4 pole 380V 4-5.5KW frequency conversion motor and inverter about how much money, such as the use of electromagnetic speed motor comparison
- 4-5.5KW inverter made about 1300 or so, the frequency conversion motor about 3000
The same power of the electromagnetic governor + motor about 4000, the price is almost
- Q:Master Hello a machine requires 500 speed matching 6-pole motor frequency converter transferred to about 28HZ
- 6-pole motor synchronous speed of 1000 r / min, the actual motor speed is lower than the number, the actual speed is required to 500 r / min, then the motor and passive pulley diameter ratio of about 1: 1.6 or so, and then specific With the inverter to speed up to achieve the purpose, please refer to.
- Q:Will the laptop's power adapter is not the original good?
- See the adapter is suitable for notebook models to use, the following three conditions for reference:
1. The output voltage of the adapter is the same as that of the notebook.
2. Is the adapter's output current consistent with the notebook's requirements? (Or a little bit of the current is also not.)
3. The size of the joint is appropriate. (If the connector is too loose, will be bad, excessive fever.)
- Q:Delta inverter reported CE4 reasons? Casually asked how many kinds of CE under a total
- Which model ah, CE alarm, it should be communication failure. CE4, it seems that should be written to the read-only address. You follow the inverter model, to the Delta website to download the corresponding manual, there are fault alarm instructions.
- Q:Lenovo g450 laptop power adapter specifications is what?
- Lenovo g450 laptop power adapter specifications is what?
Wrqwgp520 | viewed 4426 times
Recommended at 2016-05-26 08:52:41 Best answer
Lenovo Lenovo 19V4.74A G450 G470 Laptop AC Adapter:
【Power supply technical parameters】
1. Input voltage: AC100-240V.50-60Hz.1.5A
2. Output voltage: 19V
3. Output current: 4.74A
4. Work efficiency:> 85%
5. Output power: 90W
6: Input interface: Plum triangular interface
7: Output interface: 5.5 * 2.5
- Q:HP laptop power adapter how to open
- That thing is not generally no screws, is sticky together. If you want to split, can only use the blade along the seam a little bit of open
- 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.
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