What is dielectric withstand voltage?

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asked Mar 10, 2018 by anonymous

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asked Sep 4, 2018 by anonymous

Define : (i) Dielectric strength (ii) Breakdown voltage

Last answer: (i) Dielectric strength: The voltage which a dielectric material can withstand without breaking down (without losing its dielectric property) is called its dielectric strength. It is represented by kV/mm ... or is no longer an insulator) for a specified thickness, is its breakdown voltage.

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asked Apr 28, 2018 by anonymous

The frequencies and voltage used in Dielectric heating are

The frequencies and voltage used in Dielectric heating are (A) 10 – 30 MHz, upto 25 kV (B) 50 – 60 Hz, upto 25 kV (C) 10 – 30 MHz, upto 100 V (D) 50 – 60 Hz, 110 V – 230 V

Last answer: The frequencies and voltage used in Dielectric heating are 10 – 30 MHz, upto 25 kV

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asked Mar 10, 2018 by anonymous

What is dielectric breakdown strength?

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asked Sep 4, 2018 by anonymous

What is dielectric strength of an insulating material? What is its unit?

Last answer: Dielectric Strength: The dielectric strength of an insulating material is the maximum voltage which the insulating medium can withstand without breakdown. Unit is volts per millimeter (V/mm), or kV/mm or kV/cm

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asked Mar 11, 2018 by anonymous

What is the difference between an insulator and a dielectric?

Last answer: Dielectric is the another name for insulator.

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asked Mar 11, 2018 by anonymous

What is meant by dielectric heating?

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asked Apr 28, 2018 by anonymous

The bridge most suited for accurate measurement of relative permittivity of dielectric materials is

The bridge most suited for accurate measurement of relative permittivity of dielectric materials is (A) Carey Foster Bridge (B) Anderson’s bridge (C) Heaviside Bridge modified by Campbell. (D) Schering Bridge.

Last answer: The bridge most suited for accurate measurement of relative permittivity of dielectric materials is Schering Bridge.

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86 views 1 answer

asked Apr 25, 2018 by anonymous

Dielectric loss in a capacitor is best measured by

Dielectric loss in a capacitor is best measured by (A) Wien Bridge (B) Schering Bridge (C) Anderson Bridge (D) Heaviside-Campbell Equal Ratio Bridge

Last answer: Dielectric loss in a capacitor is best measured by Schering Bridge

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asked Mar 19, 2018 by anonymous

The dielectric strength of transformer oil is expected to be?

Last answer: The dielectric strength of transformer oil is expected to be 33 kV.

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asked Apr 16, 2020 by anonymous

Define Dielectric Strength for transformer oil. State its value for new transformer oil.

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asked Aug 4, 2019 by anonymous

Write one application for the give dielectric material. (i) Polyvinyl Carbide(PVC) (ii) Glass (iii) Mica (iv) Cotton and Silk

Last answer: (i) Polyvinyl Carbide(PVC):it is used in insulation of wires and cables in domestic wiring as well as in aircraft and factory wiring (any one) (ii) Glass: 1) Alkaline glasses are used for ... with wax or varnishes are used in windings of magnet coils and small medium sized mechanics (any one)

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asked Aug 4, 2019 by anonymous

State any four dielectric materials.

Last answer: Ceramics, distilled water, paper, mica, polyethylene, and glass. Metal oxides

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asked Apr 30, 2018 by anonymous

The power factor of dielectric :

The power factor of dielectric : (A) is a function of temperature of the dielectric only (B) depends only on voltage stress to which the dielectric is stressed (C) always constant (D) both (A) and (B)

Last answer: The power factor of dielectric : (A) is a function of temperature of the dielectric only (B) depends only on voltage stress to which the dielectric is stressed (C) always constant (D) both (A) and (B)

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asked Mar 10, 2018 by anonymous

What is meant by flash over voltage?

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asked Mar 10, 2018 by anonymous

What is the definition of extra low voltage?

Last answer: Extra-low voltage (ELV) is an electricity supply voltage in a range which carries a low risk of dangerous electrical shock.

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118 views 1 answer

asked Mar 10, 2018 by anonymous

What is the difference between line and phase voltage?

Last answer: Line voltage is voltage between two phases R &Y (415 v) while phase voltage is the voltage between one phase and a neutral B & N (240 v).

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asked Mar 10, 2018 by anonymous

What is impulse voltage of transformer?

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asked Mar 10, 2018 by anonymous

What is Extra High Voltage?

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asked Mar 10, 2018 by anonymous

What is the difference between a line voltage and low voltage control system?

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asked Mar 10, 2018 by anonymous

What is a high voltage test?

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asked Mar 10, 2018 by anonymous

What is considered low voltage and high voltage?

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asked Mar 10, 2018 by anonymous

What are the advantages of high voltage transmission?

Last answer: Advantages: 1. As Transmission voltage increases, current decreases. 2. As current decreases, cross section of conductor decreases. 3. As cross section of conductor decreases ... line increases 12. As transmission voltage increases power handling capacity of transmission line increases

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asked Apr 28, 2018 by anonymous

In voltage source converter based HVDC transmission system the active power is controlled by changing

In voltage source converter based HVDC transmission system the active power is controlled by changing (A) phase angle of the converter ac input voltage (B) supply frequency of the converter ac input voltage (C) magnitude of the converter ac input voltage (D) DC voltage at the inverter terminals

Last answer: In voltage source converter based HVDC transmission system the active power is controlled by changing phase angle of the converter ac input voltage

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99 views 1 answer

asked Mar 10, 2018 by anonymous

Why high voltage test is done?

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asked Mar 10, 2018 by anonymous

Why high voltage is used in power transmission?

Last answer: The primary reason that power is transmitted at high voltages is to increase efficiency. ... The lower current that accompanies high voltage transmissionreduces resistance in the conductors aselectricity flows ... This means that thin, light-weight wires can beused in long-distance transmission.

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asked Mar 10, 2018 by anonymous

How do you fix voltage drop?

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asked Mar 10, 2018 by anonymous

Why high voltage can reduce power loss?

Last answer: when voltage has increased due to reduced current flow, thus power loss given by ( I^2R) will be low due to reduced current(I^2) provided that resistance (R) is constant.

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asked Mar 10, 2018 by anonymous

Why does increase in current mean a decrease in voltage?

Last answer: This is because current flows from high potential to low potential to bring the two diffrent potential to unity , thus a reduced potential (voltage)

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asked Jan 24, 2020 by anonymous

What is terminal voltage ?

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asked Sep 4, 2018 by anonymous

What is internal voltage drop and terminal voltage?

Last answer: It is not permissible to just connect the positive terminal to the negative terminal of a cell with a copper wire. It will overheat and get damaged. This happens because the electromotive force (emf) ... than the nominal voltage (emf) of the cell and this lower voltage is called terminal voltage.

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asked Aug 11, 2018 by anonymous

What is line voltage and phase voltage?

What is line voltage and phase voltage? Draw balanced three phase star connected system. Show all the voltages and currents.

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asked Jun 18, 2018 by anonymous

An SSB transmitter produces a peak-to-peak voltage of 200 V across a 100 Ω antenna load. What is the Peak

An SSB transmitter produces a peak-to-peak voltage of 200 V across a 100 Ω antenna load. What is the Peak Envelope Power? A) 49.98 W B) 79.98 W C) 99.96 W D) 199.93 W

Last answer: An SSB transmitter produces a peak-to-peak voltage of 200 V across a 100 Ω antenna load. What is the Peak Envelope Power? A) 49.98 W B) 79.98 W C) 99.96 W D) 199.93 W

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asked Apr 29, 2018 by anonymous

What is a capacitor voltage transformer?

What is a capacitor voltage transformer? A) It is a transformer used in power systems to step up low voltage signals and provide extra high voltage B) It is a transformer used in power systems to step up high voltage signals and provide extra high voltage C) It is a transformer used in power systems to step down extra high voltage signals and provide low voltage D) None of these

Last answer: What is a capacitor voltage transformer? A) It is a transformer used in power systems to step up low voltage signals and provide extra high voltage B) It is a transformer used in power systems ... power systems to step down extra high voltage signals and provide low voltage D) None of these

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asked Apr 29, 2018 by anonymous

What happens to the voltage in the secondary when the frequency of the supply in the primary is decreased?

What happens to the voltage in the secondary when the frequency of the supply in the primary is decreased? A) It increases B) It decreases C) It remains the same D) Cannot say unless the actual percentage increase in the frequency is known

Last answer: What happens to the voltage in the secondary when the frequency of the supply in the primary is decreased? A) It increases B) It decreases C) It remains the same D) Cannot say unless the actual percentage increase in the frequency is known

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asked Apr 29, 2018 by anonymous

What is the RMS voltage in a series RL circuit, if the voltage across R and L is 256 V and 192 V respectively?

What is the RMS voltage in a series RL circuit, if the voltage across R and L is 256 V and 192 V respectively? A) 320 V B) 448 V C) 64 V D) None of these

Last answer: What is the RMS voltage in a series RL circuit, if the voltage across R and L is 256 V and 192 V respectively? A) 320 V B) 448 V C) 64 V D) None of these

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asked Mar 19, 2018 by anonymous

What is meant by pinch off voltage in MOSFET?

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asked Mar 10, 2018 by anonymous

What is meant by extra high voltage transmission?

Last answer: HT & LT two types transmission in industrial line

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asked Mar 10, 2018 by anonymous

What is the unit of measure for voltage?

Last answer: Voltage measured in volts.

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asked Mar 10, 2018 by anonymous

What equipment is used to measure voltage?

Last answer: Voltmeter is used to measure voltage.

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asked Mar 10, 2018 by anonymous

What is an analog voltage?

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asked Mar 10, 2018 by anonymous

What is the cause of voltage fluctuation?

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What is voltage interruption?

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What is meant by a voltage surge?

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What is voltage sags and swells?

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asked Dec 28, 2017 by anonymous

what is the minimum voltage required to turn on a diode ?

Last answer: 0.7 v sil and 0.3 v for gr

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asked Dec 22, 2017 by anonymous

What is the voltage in 3 phase line?

Last answer: between 430 to 440 v

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asked Dec 19, 2017 by anonymous

What is the threshold voltage?

Last answer: 440

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asked Dec 9, 2017 by anonymous

What is the ripple voltage?

Last answer: Ripple voltage is the small variations in Dc voltage that remain after filtering in a power supply.

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asked Dec 9, 2017 by anonymous

What is the voltage of a red LED?

Last answer: A red led requires 2v to light. LEDs requires different amounts of voltage ranging between 1.8 and 3.3 depending on the intensity and color of the Led.

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asked Oct 21, 2017 by anonymous

If resistance is 8 Ohm and current is 16 ampere then what will be the voltage and power?

Last answer: 128 volts ,2048 watts

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110 views 2 answers

What is dielectric withstand voltage?

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