Interested to Buy Any Domain ? << Click Here >> for more details...
What is the Frequency while we step up the voltage from
220V to 11KV? Is it possible? Explain it?
- 6 Answers
- 10018 Views
- I also Faced
- E-Mail Answers
Answer Posted / fransis
Generally Frequency is maintained by generation station for
a common distribution system.It is not possible to change
frequency while step up or step down the voltage on any
transformer.
This is also possible to change the frequency by term of
electronic controll device like in soft starter. In the soft
starter frequency is controlled with voltage to control the
speed of motor.
| Is This Answer Correct ? | 3 Yes | 0 No |
Post New Answer View All Answers
How many size of cable required for a 300m long and 30kw inductive lode
What is meant by derating factor?
how to calculate the tarriff for an industry whose kva demand is 10 mva
what is the affect of earth's magnetic field on the frequency used in aircraft???
How to calculate the time setting for star connection in star delta starter? For example 10KW 3PH Induction motor.
Hi everyone. Some Generators uses 3-Pole breakers with extra contactors for Neutral. Some uses 4-Pole. Why so? What is the idea behind this? Thanks in advance for the solution. Kr.
What does the term power factor shows?
why power not passes in plastic and rubber material
what is the difference between linear choke and suction choke?
What will happen if the voltage in my house drops from 220V to any lower voltage?
What is kvar?
Types of test in Switchgears, MCC, NGR and DB's how it should be procced. Can anyone give me the details here or email me to pasuvaraj.k@gmail.com
We have drive feeding an output contactor for a 5000 hp motor @ 5kV application. The motor FLA is 629amps x 1.25% service factor = 786.25 amps The cable that we current have in place between the drive and the output contactor is 350kcmil- MV-105 (parallel cables). Per the NEC table 310.60 (C) (69). This show the cable ampacity is at 615 amps per cable for a rating of 1230 amps. We have derated the cable for the cable tray and the multiple cables application and our calculations show that after the correction factor factor we are at 922amps. 1230 amps x .75% correction factor factor = 922.5 amps. The customer is driving us to then use another safety factor of .25% off of the already derated cable. Can you please provide a longhand calculation for your solution on this application?
How can i calculate the Breaking capacity of molded case circuit breaker, is the breaking capacity of CB for Diesel generator shall be less than grid supply's breaker ?
What is the meaning of utility ground and clean ground? How the distribution panel is grounded?
