Drive and Motor Power rating different.

Hi 

Can i connect  micromaster 440 ,   3KW drive with Siemens Motor 4 KW.

Drive Specification

 Input:380-480V +10%-10% 3 phase AC 10 A 47 - 63 Hz

Output:0-Input V 3Phase AC 7.7 AMP ,3 KW

Motor Specification

50 HZ ,7.4 AMP, 4KW

 Only 1 KW motor rating is grater than drive power rating.

Please suggest me motor connected with drive or not 

because i have no option. 

What is the application?

What is duty cycle of application? i.e. starting current? Load factor etc. etc.?

What is drive overload capacity? 

User need to study these to check drive motor compatibility & not only sufficient to conclude based on their KW rating.

Hope this helps.

Thanks for reply.

This motor and drive are use for Extruder Vacuum system.

and drive output current rating is 7.7AMP.

Exiting motor connected with previous drive. Motor current rating 3KW  Delta/Star 6.0/3.5 A.

New Motor current rating 4KW  Delta 7.4 AMP.

Please suggest me new motor can connect with existing drive.

#Ak

[snip]

Please suggest me new motor can connect with existing drive. 

To best of my knowledge - NO. 

Apologies for coming into this late, but have been on site.

The drive has 7.7 Ampere capacity 

The motor is 400 Volt, 7.4 Ampere, Delta connected’?? Check this.

The power rating will be a function of power factor and efficiency, so this may vary accordingly.

Current capacity for the drive is adequate, the load is variable torque, I assume?

 Would therefore give it a try, working through the speed range checking the current draw.

Tractor