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A 'voltage transformer', together with a 'current transformer', belong to a class of Transformers called 'instrument transformers', whose purpose is to enable high voltages and currents to be safely measured by reducing their values to lower levels, while electrically-isolating these high voltages/currents from the measuring instruments. These transformers are also used to provide input to protective relays.

A 'power transformer' is a transformer used in the electricity transmission and primary distribution systems, whose function is to either step up generated voltages (11 - 25 kV in the UK) to transmission levels (400 kV in the UK), or to step down these high voltages at 'load centres', such as towns and cities.

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What are at least 2 types of electrical transformers in science?

A variety of electrical transformers are produced for a variety of purposes. All of the types use the same principle discovered by Michael Faraday, and employ many of the same parts. The various types include. Audio transformers, Instrument transformers, Pulse transformers, Power transformers, RF transformers. .


What is difference between pulse width modulation and pulse position modulation?

Frequency modulation, as the name suggests, modulates the carrier by changing the frequency of the signal emitted. Pulse width modulation, changes the on-time of a square wave, but leaves the frequency of the carrier wave unchanged. So, in frequency modulation, the frequency will vary between, say, 80kHz and 120kHz with a constant power level, but in pulse width modulation, the frequency will stay at 100kHz, but the on-time (the length of each pulse) will vary, hence the power level will vary accordingly.


What is the difference between pulse code and pulse amplitude in brief and concise terms?

In pulse amplitude modulation (PAM), you send a single pulse of a certain height (amplitude) that represents the value of the sampled signal at that time. With pulse code modulation (PCM), you take the same sampled value, but now represent that value by N bits, where N is the number of quantized regions. Why send a whole bunch of bits instead of just a single pulse? Because PCM performs better in situations of higher noise (AWGN).


Why is high voltage a plus?

its because of transformers . they work with pulse


Difference between analog modulation and digital modulation?

Analog Pulse modulation is discreet in time but the formation is transmitted in continuous form. In digital pulse modulation, not only the time axis is discreet but the information is also in digital form. Examples of Analog PM are PAM and PTM i.e pulse amplitude and pulse time modulations respectively. Examples of Digital PM are PCM and PDM i.e pulse code and pulse delta modulations respectively.

Related Questions

In normal conditions is the apical pulse the same as the radial pulse?

NO. the difference between the Apical and Radial pulse is known as the pulse deficit. There should be some difference between the twon.


What are some important types of transformers?

There are Several types of transformers are there in that some are listed below. Instrument Transformers Step Up and Step Down Transformers Single Phase Transformers Power Transformers Distribution Transformers etc. For more visit transcon industries.


What is the difference between legumes and lentils?

pulse are legume but all legume are not pulse.


What is the difference between space vector modulation and pulse width modulation?

There is no difference.


What is the difference between your pulse before and after eating?

ti yonh


What is difference between your pulse rate before and after eating?

ti yonh


What is the difference between pulse code modulation and delta modulation?

The difference between pulse code modulation and delta modulation is that pulse code modulation is a method of encoding audio information digitally while delta modulation is a method that converts analog to digital signal.


What is pulse pressure?

Pulse pressure is the pressure that is felt when feeling the pulse. Measured in millimeters of mercury (mmHg), the pressure difference between the systolic and diastolic pressures is the pressure change to create the pulse, which is the pulse pressure.


What is the difference between exercise and pulse rate?

the difference is that in excersize u wrk ur whole body with ekuipment and the other u get a pulse rate in having sex also


What is the normal range for pulse deficit?

A pulse deficit is the difference between an actual heart beat and the pulse felt in the wrist or neck. Normal pulse deficits can be felt in someone with a pacemaker.


What is the difference in value called between apical pulse and arterial pulse?

The apical pulse may be a little bit faster than say a radial pulse because of the slight lag in time as blood rushes from the heart into larger arteries. Any LARGE difference between the values of apical and other pulses observed is called a PULSE DEFICIT. This could indicate a cardiac impairment (i.e. a weakened heart).


What is difference between output current and pulse current?

It is a language in electronics describing whether the output is a pulse or direct current for any output.