0
How do you calculate earth leakage current for certain load example 5KW motor 660Vac?
There are many factors that determine what the leakage current will be. You could find out what the insulation winding resistance of the new motor should be and use the 660 volts and Ohm's law to calculate the current. If you measure this using a DC insulation tester however it probably will not yield an exact measurement since the test is not under normal operating conditions, but is a DC voltage test. To get the best measurement you really need to test the motor under operation and use a leakage clamp on the ground connection to see what the current really is since other factors come into play such as the insulation resistance, imbalance and frequency. An example of a tool would be the Fluke 1630 or Fluke 360.
What else can I help you with?
Why leakage current of germanium is more than silicon?
The higher leakage current in germanium compared to silicon is mainly due to its lower bandgap energy, which allows more thermally generated carriers to flow through at room temperature. Additionally, germanium has lower electron mobility and higher intrinsic carrier concentration than silicon, contributing to increased leakage current.
Can a ground leakage damage electrical appliances?
A ground leakage can damage electrical appliances. When there is a current leakage, it causes the appliance to draw more current through thecircuit, hence produces excess heat. This can damage the appliances.
How do the features of germanium and silicon diodes compare to each other?
Germanium diodes have a lower forward voltage drop compared to silicon diodes, making them suitable for low voltage applications. However, they have higher leakage current and are more temperature sensitive. Silicon diodes, on the other hand, have higher forward voltage drop but are more stable over a wider temperature range and have lower leakage current.
What is the working procedure of EARTH LEAKAGE CIRCUIT BRACKER?
we call them ground fault breakers 10 milliamps thru you instead of the normal current path can kill you if you have a neon test lamp connect it to one of the hot leads and earth the other. if it lights the earth leak detector is faulty. if it opens the breaker its good most here in the usa have a test button
Will a GFCI outlet trip when the current is reduced or shut off?
A GFCI outlet will trip when it detects a ground fault, not when the current is simply reduced or shut off. The purpose of the GFCI outlet is to quickly shut off power when it senses a potential electrical hazard, such as a ground fault or leakage.
What is leakage current in transformer?
In low voltage and electronics Leakage Current is any current that flows when the ideal current
What is the source of leakage current in a transistor?
The current of the minority charges (collector region) is the source of the leakage current. At higher temperature, this leakage current increases due to increase in thermal energy.
Which current is the leakage current that flows through a photo diode with no input in a light detector?
leakage current itself
What is the leakage current of zener diode?
The leakage current of a (zener) diode is the current that leaks when a diode is connected in reverse biased.
What is leakage current of zener diode?
The leakage current of a (zener) diode is the current that leaks when a diode is connected in reverse biased.
How do you test leakage on equipment?
by measuring the insulation resistance then by usig the formula for finding leakage current leakage current =voltage applied /resistance measured by megger.
What is the formula of getting leakage current?
There are several formulas to find out leakage current, but one is the general electric current equation. This electric current equation is I=Qt.
What is leakage current in semiconductor?
In low voltage and electronics Leakage Current is any current that flows when the ideal current is zero. In medium and high voltage applications it is the current that flows either through the body or over the surface of an insulator. Leakage current often arises when outdoor insulation is submitted to conductive fog (sea mist/spray, industrial smogs) or when a pollution layer containing soluble salts is formed on the insulator surface and then wetted, for example by dew or mist. These currents can reach several hundred mA and may lead to flashover of the insulation.
How many percentage leakage current allow?
The maximum allowable leakage current for any electrical device is 0.5 mA. This is equivalent to 0.5% of the rated current. This is a safety requirement to ensure that any current leakage is minimal and will not cause any harm to the user or damage to the device.Maximum allowable leakage current: 0.5 mAEquivalent to 0.5% of the rated currentIt is important to adhere to the safety requirements to ensure the safety of users and the protection of the device.
Which has higher leakage current-Si or Ge?
Ge
What is the effect of temperature on leakage current?
Flow of current in the collector circuit produces heat at the collector base junction. This increases the temperature. More minority carriers are generated in base collector region, since more bands are broken,the leakage current increases. In other word, leakage current increase when temperature increase.
What is leakage current in underground transmission line?
The leakage current in underground transmission line are any two conductors separated by an insulating medium. It constitutes a condenser and a capacitor.
