Medium Voltage Drive VFD 1400KW 6KV HIVERT-Y 06/173

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Medium Voltage Drive VFD 1400KW 6KV HIVERT-Y 06/173

 Introduction

In the RMVC 5100 converter, the medium voltage output isconstructed by connecting the outputs of single-phase
low-voltage IGBT-based inverters in series, with an equal number per phase. Each individual single-phase inverter power module is powered by an internal rectifier, itself supplied from separate phase-displaced secondary
windings of the integrated transformer. An inherent feature of this technology is that a high pulse number rectifier is created resulting in a significant reduction of input current harmonic distortion. In the example shown below for a 6kV output, the diode rectifier is 30-pulse. The input Power Factor is also high at a minimum of 0.95 regardless of speed and power. The PWM switching strategy ensures that sinusoidal current is supplied to the motor. The low levels of harmonic current in the motor ensure that both motor heating and shaft torque pulsations transmitted to the coupling and load are minimised. Use of the multi-level PWM topology also results in areduced size of voltage steps imposed on to the motor and cable insulation systems compared to 2 or 3-level inverters.The dV/dt is less than 1,000V/μs. 

 

Compact design

• Transformer integrated within cabinet
• Modular power module design
• Front access only for easy maintenance and replacement

 

Fully equipped

• 7” HMI touch screen for status display6 and local control
• Internal cabinet lighting
• Visual and audible local alarm

 

Restricted access to medium voltage area
• Door interlock system prevents unauthorised access
• Special tools required to open doors
• Handle lock provided
• Fibre-optic communications for exchange of status and
control between Medium Voltage Cabinets and Low
Voltage Control Cabinet
RMVC 5100 : 6kV, 1250kVA
RXPE

 

 FAQ

1.what kind of load the frequency inverter used for? 

2.Please provide specific motor parameters ?

3.Application Environment 

4.if need special internet port?

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Q:How to learn the inverter debugging and design parameters
Personally think it is relatively simple, and now the inverter has been more intelligent, and some simple applications, and even do not need to set the parameters.
Q:Is the speed of the motor controlled?
Change the external conditions, you can change the motor speed: 1. Change the number of pole pairs of the motor. (Multi-pole motor use) 2. Use the frequency converter to change the frequency speed 3. Winding motor rotor series resistance speed control. 4. Slip motor is to change the slip electromagnetic speed
Q:Who knows how the frequency converter works
4 inverter circuit Inverter circuit In contrast to the rectifier circuit, the inverter circuit converts the DC voltage into the AC voltage of the desired frequency, and turns on and off the power switch device of the upper bridge and the lower bridge at the determined time. Which can be in the output U, V, W three phase phase difference between the 120 ° electrical angle of the three-phase AC voltage.
Q:65w adapter and 90w laptop power adapter What is the difference?
According to ibm specification T6 x6 r6 series power supply is compatible The difference is x6 this thin model with 65 The official explanation is (original English), in the 90w models using 65w machine may be in high power consumption, can not meet the system requirements. That is, while the side of the charge side of the use, it is possible that the computer can not run at full speed. In fact, the use of and there is no problem, but also little, at least the machine is no harm. For psychological factors, you can buy a 90w, Taobao fake a lot, you are not professional or to Jingdong to buy, about 250 yuan, although it is more expensive, really is the original.
Q:Notebook power adapter on how to look at power
then the same formula can be used to calculate: power (unit: W) = voltage (unit: V) × current (unit: A). For example: the power adapter only identifies the output voltage is 20V, the output current is 4.5A, then we set a formula to know the output power is 20 × 4.5 = 90W.
Q:The laptop power adapter is hot
My point of view: First: your laptop power supply in a small ventilation environment, resulting in poor heat dissipation, Second: the life of the power supply is 3-5 years, the gradual oxidation of electronic components and some of the aging components, resulting in no load and load a lot of power, Third: the battery close to each run, and then connected to the power, the power to the battery charger and notebook power supply, so the pressure is not hot strange.
Q:Please recommend a high performance laptop power adapter?
See what model you notebook ah, according to your power adapter voltage, rated current to match.
Q:The laptop's power adapter can be used on a desktop computer
that is the adapter is only one output input desktop machine needs a lot of different The interface can not be used completely Well
Q:Laptop power adapter problem
Second, the transformer This thing is not standardized production, the result is that even if the parameters of the same, the transformer to get another of this may not be compatible with the use of the explosion with the use of the cup like the situation, so we generally Stressed the original transformer.
Q:Do not the laptop directly connected to the power adapter?
"Notebook do not power adapter", can only use the internal lithium battery power supply work. It can not directly use 220V AC power supply for it. 1, because the notebook product design power supply standard, is to use the matching power adapter power supply. That is, the power adapter will 220V civilian AC, rectifier filter, and then converted to low-voltage 19V DC, for the notebook to provide power supply;

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