Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
Q. What do you mean by Instrument transformers?
These are generally of two types, potential transformers (PTs) and current transformers (CTs). They are designed in such a way that the former may be regarded as having an ideal potential ratio, whereas the latter has an ideal current ratio. The accuracy ofmeasurement is quite important for ITs that are commonly used in ac circuits to supply instruments, protective relays, and control devices.
PTs are employed to step down the voltage to a suitable level, whereas CTs (connected in series with the line) are used to step down the current for metering purposes. Often the primary of a CT is not an integral part of the transformer itself, but is a part of the line whose current is being measured. In addition to providing a desirable low current in the metering circuit, the CT isolates the meter from the line, which may be at a high potential. Note that the secondary terminals of a CT should never be open-circuited under load. The student is encouraged to reason and justify this precaution. One of the most useful instruments for measuring currents in the ampere range is the clip-on ammeter combining the CT with one-turn primary and the measurement functions.
Q. Which of the 3 transistor configuration is best to use in cascade if maximum voltage gain is to be realized? The common collector configuration is not used for intermediate
Why armature core in a DC machine is constructed with laminated steel instead of solid steel sheets
Question: (a) Consider the subsequent LC impedance function: (i) If the function is to be realised using the Foster I Form, evaluate the values of the different compon
The goal of this project is to model a system and to design a controller for the system so that the closed-loop system performs satisfactorily.
Hello I am doing a Btec degree in Electrical and electronic engineering and I was wondering if you can help me complete it because I am behind
cache size, blocks ?
Design a smart park system using Iot sensors to udate stautus to a server ?
The single-phase, 50-kVA, 2400:240-V, 60-Hz, two-winding distribution transformer is connected as a step-up autotransformer, as shown in Figure. Assume that the 240-V winding is pr
Explain the 8259 microprocessor. 8259: The 8259A adds 8 vectored priority encoded interrupts to the microprocessor. This can be expanded to 64 interrupt requests with us
Literature Review - Software Defined Radio In this section, first two methods to estimate signal to noise ratio (SNR) are reviewed and a few methods for modulation classificati
Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!
whatsapp: +91-977-207-8620
Phone: +91-977-207-8620
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd