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:My inverter is the era TVF8000 series, the motor is 15KW6 pole motor, has been used for 3 years.
Motor current when the current 10A this has no effect on you, the rated current is 31.4A, your inverter is selected how many W, is the fan pump type or universal? Now the motor operating current reached 34-35A, more than the rated current, then the motor may have two problems, one is the motor leakage powerful, and in a motor is overload, resulting in increased current
Q:Lenovo laptop power adapter side of the feet which is positive
Power adapter is a small portable electronic equipment and electrical and electronic power supply conversion equipment, generally by the shell, power transformer and rectifier circuit, according to its output type can be divided into AC output and DC output type; by way of connection Divided into wall and desktop.
Q:Motor a speed, the inverter will burn what is going on, the inverter is a large yuan
Inverters Have not heard of it! East yuan heard. The inverter is most likely to be damaged by the motor is running suddenly grounded, the possibility of frying the module more than eighty percent, since a little better brand will blow up! Overload, overcurrent, short circuit, lack of phase caused by damage to the inverter, then the quality of the inverter is so good, and indeed the basic functions of these inverter protection.
Q:Is the inverter output current proportional to the output torque?
When 50HZ or more, the voltage is not increased, the magnetic flux decreases. P = T * n / 9550, if the motor output torque does not change, the current will increase, the motor heat overload
Q:Why the number of motor poles increased, the inverter capacity will increase
The number of poles of the motor is not directly related to the rated current, but the number of poles is larger and the power factor is lower and the rated current will be higher.
Q:Short-term short-circuit converter DC link positive and negative will damage the inverter?
This short circuit may not necessarily line, the inverter fan has three, one is no speed line, two are pulse, three are switching signal (this is very little, I only encountered several),
Q:What is the motor series parameter setting of the inverter? If it is with the spindle,
The number of motor poles can be estimated by the parameters: 1000Hz corresponds to 60000rpm, According to "Speed in rpm = 60 * Frequency in Hz / (Number of Poles / 2)", Number of poles = 60 * Frequency indicated by Hz * 2 / Speed in rpm = 60 * 1000 * 2/60000 = 2 poles. The same is true with 333Hz and 20000rpm projections. The number of motor poles for the frequency converter should be entered with the number of poles of the motor that are directly connected to the frequency converter.
Q:My Lenovo v450 laptop power adapter should be bad how to match?
In order to ensure quality, we recommend that you buy genuine, you can contact the service station to buy engineers
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:11kw 6-pole motor can be used to adjust the inverter to 1800RPM?
Frequency converter in the 5-50Hz is constant torque frequency, 50-100Hz is constant power frequency, to see what you want to get the effect

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