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What is ocr efr uvr referred to in air blast circuit breaker?

ocr-over current relay(senses the over current in the circuits) efr-earth fault relay uvr-under voltage relay


Why are semiconductors referred to as being non-ohmic?

They do not follow the linear Ohm's Law equation relating current flow and voltage, like normal conductors do.


What is difference between residual current circuit breaker and earth leakage circuit breaker?

Voltage-ELCBs were first introduced about sixty years ago and Current-ELCB was first introduced about forty years ago. For many years, the voltage operated ELCB and the differential current operated ELCB were both referred to as ELCBs because it was a simpler name to remember. But the use of a common name for two different devices gave rise to considerable confusion in the electrical industry.


When current flows into the grid it is called?

When current flows into the grid, it is referred to as "injection" or "power injection." This occurs when energy, typically generated from renewable sources like solar or wind, is fed into the electrical grid, contributing to the overall power supply. This process is essential for maintaining grid stability and ensuring that electricity is available for consumption.


Difference between conduction current and displacement current?

Conduction refers to electrons or, "holes" in the case of semiconductors, which are conducted, under the influence of an electric field, from one place to another. However, in semiconductor there is a phenomenon called "drift current" which is more a function of very small field and random motion from one place, within the material, to another place. But neither of these is ever referred to as a "convection" current. The term "convection" is used in connection with air currents moved by differences in temperature between one place and another. Hot air tends to rise while cold air tends to fall. Consequently, a circulation of air, due to temperature is called a convection current.

Related Questions

Financial ratio used to assess a company's liquidity?

1.current ratio:It is referred by current asset divided by the current liabilities. 2.quick ratio: It is referred bi the current assets minus inventory divided by the current liabilities. 3.cash ratio: It is referred by the cash in hand ,bank balance ,temporary investnebts divided by the current liabilities.


When there is a break in the wire this is often referred to as?

When there is a break in the wire, it is often referred to as an open circuit. This means that the pathway for electrical current flow is interrupted, preventing the current from completing its circuit.


What is a current of water or air called?

A current of water is called a "stream" or "flow" while a current of air is referred to as "wind" or "breeze".


What title best describes the current geologic age?

The current geologic age is referred to as the Holocene epoch.


What is electron movement referred to as?

Electron movement is referred to as electric current. When electrons flow through a conductor, such as a wire, they carry electrical energy from one point to another. The direction of current flow is opposite to the direction of electron movement.


What is the unite of current?

Current is measured with an ammeter and in units called amperes, or amps.ampsamperes


The directory shown by pwd can be referred to as the current working dirctory?

pwd - means print working directory, which is always the current directory.


How were you referred to this company?

A current/past employee. An advertisement. Job Search(monster, craigslist)


How were you referred to company?

A current/past employee. An advertisement. Job Search(monster, Craigslist)


A circuit that has more than one closed path for current to follow is referred to as a?

logic circuit


What is a streams?

a creek


What is the current generation called?

The current generation is commonly referred to as Generation Z. Members of this generation are typically born between the mid-to-late 1990s and the early 2010s.