Motor nameplate data and drive question
Motor nameplate data and drive question
(OP)
I recently received a motor with nameplate in two parts.
Part 1:
Interter data
20 HP
6-60 HZ
460 V
23.6 Amps
1.0 service factor
Part 2
Sine Data
25 HP
60 HZ
460 Hz
29.7 Amps
1.15 service factor
The motor will be installed using a standard combination started (60 Hz) not a VFD.
Question 1 - Should the conduit, wire, starter, fuses, etc. be sized for per the NEC based on the 25 HP motor?
Question 2 - Is it a code requirements that if a drive is being installed on a piece of equipment with a standard motor (motor not rated by inverter service) that motor be replaced with a motor that is rated for inverter service?
Part 1:
Interter data
20 HP
6-60 HZ
460 V
23.6 Amps
1.0 service factor
Part 2
Sine Data
25 HP
60 HZ
460 Hz
29.7 Amps
1.15 service factor
The motor will be installed using a standard combination started (60 Hz) not a VFD.
Question 1 - Should the conduit, wire, starter, fuses, etc. be sized for per the NEC based on the 25 HP motor?
Question 2 - Is it a code requirements that if a drive is being installed on a piece of equipment with a standard motor (motor not rated by inverter service) that motor be replaced with a motor that is rated for inverter service?





RE: Motor nameplate data and drive question
NEC does not require the use of a motor rated for inverter service when connecting the motor to a VFD. If the motor needs to be UL listed, such as for use in a hazardous (classified) location, I believe that the UL label will be valid only for a motor that is rated for inverter service.
RE: Motor nameplate data and drive question
http:/www.jraef.com
Eng-Tips: Help for your job, not for your homework Read FAQ731-376
RE: Motor nameplate data and drive question
Inverter Data when used with VFD.
Sine Data when connected to the utility or fix frequency source.
RE: Motor nameplate data and drive question