Cost Comparison of 200KW Induction Motors

Click For Summary
SUMMARY

The cost comparison between two 200KW induction motors, one operating at 400V and the other at 1KV, reveals that the 1KV motor is generally more cost-effective due to lower power dissipation in the windings, resulting in higher efficiency. The reduced heat loss, as described by the formula P=I²R, indicates that the 1KV motor conserves more energy, leading to lower operating costs. Additionally, the 1KV motor may require smaller conductors, further enhancing its cost-effectiveness, provided a suitable 1KV supply is available.

PREREQUISITES
  • Understanding of induction motor specifications and ratings
  • Knowledge of electrical supply voltages (400V vs. 1KV)
  • Familiarity with electrical power formulas, specifically P=I²R
  • Basic concepts of energy efficiency in electrical systems
NEXT STEPS
  • Research the installation requirements for 1KV induction motors
  • Explore energy efficiency standards for industrial motors
  • Learn about conductor sizing for different voltage levels
  • Investigate the long-term operating costs of 400V vs. 1KV motors
USEFUL FOR

Electrical engineers, industrial facility managers, and anyone involved in the selection and installation of induction motors will benefit from this discussion.

wkaiyu
Messages
1
Reaction score
0
Hello,

If I have two induction motors, both rated power are 200KW. One is based on 400V input, and another is 1KV input. Which one will be more cost effective? How much the cost difference could be?

Thanks.
 
Engineering news on Phys.org
I believe that the answer would depend on the voltage of the available 3 phase supply that you have to power the motor.
 
wkaiyu said:
Hello,

If I have two induction motors, both rated power are 200KW. One is based on 400V input, and another is 1KV input. Which one will be more cost effective? How much the cost difference could be?

Thanks.


Cost effective to purchase? Cost effective to install? Cost effective to run? They are all different things that depend on different circumstances.
 
Since P=I^2R, the 1KV one will dissipate less power in the windings in the form of heat. This means more energy is conserved and higher efficiency is achieved. The 1KV motor may also be able to have smaller conductors feeding it. Usually the higher the voltage, the lower the operating costs. Obviously this only works if you have a 1KV supply available.
 
can u explain about DC Motor and its uses
 

Similar threads

How does a Permanent capacitor motor actually work?
  • · Replies 7 ·
Replies
7
Views
2K
Self excited induction generators and grid connected solar inverters?
  • · Replies 9 ·
Replies
9
Views
2K
Can RCCB trigger falsely when it is in line with induction motors?
  • · Replies 28 ·
Replies
28
Views
3K
Repulsion induction motor question
  • · Replies 7 ·
Replies
7
Views
2K
Induction motor windings, number of turns per phase and per pole
  • · Replies 2 ·
Replies
2
Views
4K
How to determine kVA for my house? (to buy a servo stabilizer)
  • · Replies 2 ·
Replies
2
Views
2K
PVC Induction Heating Coil Design (early thoughts)
  • · Replies 51 ·
2
Replies
51
Views
4K
Torque Production in Eddy Current Motors
  • · Replies 18 ·
Replies
18
Views
3K
AC Induction motor startup current
  • · Replies 6 ·
Replies
6
Views
4K
Building a three phase motor -- figuring out how many poles
  • · Replies 22 ·
Replies
22
Views
5K