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Through thermowel tip ( made up of tantalum ), earthing is provided to Glass lined reactor.
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∙ 13y ago
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A curved line is a line that is curved.
What is a grounding line?
a grounding line is a line at the edge of the ice shelf
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What is a communications line between a device and the processor?
I believe it is interrupt request line.
Which material use in glass line reactor?
which material used in glassline reactors? What is glassline material ? Basic
What is meant by neutral grounding reactor?
Neutral-earthing reactors or Neutral grounding reactors are connected between the neutral of a power system and earth to limit the line-to-earth current to a desired value under system earth fault conditions.
Why violet colour in glass line reactors?
Violet color in glass line reactors is due to the presence of cobalt oxide added during the manufacturing process. This additive helps to increase the durability and thermal shock resistance of the glass lining, making the reactor suitable for a wider range of chemical processes.
What are difference between bus reactor and line reactor?
A bus reactors a devise installed in a bus to maintain system voltage when the load on the bus changes by releasing reactive power as usable power to bolster the voltage. A line reactor is placed in line at point of use or just after a transformer to maintain a stable amperage to the user, capacitor.
Is earthing required in Underground transmission line?
Earthing is always required. It is necessary so that a fault or overvoltage, such as caused by a lightning strike, may be conducted to earth (ground), either dissipating the energy and/or tripping the protective device.
What is the power line voltage between phase and earthing?
It is the same as phase to neutral. As the neutral is earthed at the electricity suppliers transformer.
What is an input reactor?
Just like a line reactor.. A 3-phase Line Reactor is a set of three (3) coils (also known as windings, chokes or inductors) in one assembly. It is a series device, which means it is connected in the supply line such that all line current flows through the reactor, as shown below. Line Reactors are current-limiting devices and oppose rapid changes in current because of their impedance. They hold down any spikes of current and limit any peak currents. This resistance to change is measured in ohms as the Line Reactor's AC impedance (XL) and is calculated as follows: XL = 2 π f L (ohms), where: f = frequency in hertz (cycles per second) harmonic frequency examples: harmonic (60 Hz)frequency (Hz)5th3007th42011th660 L = reactor inductance in henries (H), millihenries (mH) -- H x 10-3, microhenries (µH) -- H x 10-6 By inspection of the XL formula, the Line Reactor is directly proportional to the frequency (f) and the inductance (L). That is, if the impedance of a Line Reactor is 10 ohms at 60 Hz, then at the 5th harmonic (300 Hz) the impedance is 50 ohms. If the inductance (L) is increased, then the impedance will increase proportionally. This increase in Line Reactor impedance will reduce the current in the line. The higher the frequency (Hertz), the lower the current. A Line Reactor's DC resistance (R-ohms) is very low by design so that the power losses (watts-I2R) are low. Line Reactors are rated by % impedance, voltage and current. However, they are sized by % impedance, voltage and motor horsepower. The motor horsepower determines the necessary current rating for the Line Reactor. Line Reactors are rated by impedance, voltage and current. # Impedance (% impedance of load Z) The load impedance (Z) is calculated by this formula: Z = V/I, where Z = load impedance (ohms), V = line voltage (volts), and I = line current (amps) This percent of load impedance also determines the voltage drop across the Line Reactor. For example, a 5% Line Reactor would have a 5% voltage drop. # Voltage rating Since a Line Reactor is a current-sensitive device, the voltage rating is needed for dielectric concerns as a maximum voltage and horsepower. It is also used to determine the current rating when given only voltage and horsepower. # Current rating (amperes) This is the current required by the load(s). It is total current flowing to the load(s) and through the reactor. This current is measured in amperes (amps).
What if you touch a 25000 volts power line earthing ourselves?
In all probability you will almost instantly turn into a smoking lump of cooked meat.
Heating of line reactor due to harmonics?
More of an explanation is needed to give a good answer. It is possible for a line reactor to overheat due to harmonics. What voltage? What is the sub layout? When does this appear to occur? How old is the reactor (perhaps it is actually failing, so the harmonics are just pushing it over the edge)? How big is the reactor? Is there a capacitor bank nearby? Capacitance of the line? Length of the line? When is it switched on/off? How strong is the source bus that it is being switched to (is it turned on and the line is energized locally, or from the remote end)? etc., etc. If possible, a better forum for such a question may be Eng-tips, although there are people here that may be able to give some good insights.
What are the difference between bus reactor and line reactor?
Bus reactors are the inductors that limit voltage transients between a couple sections of a bus or a couple separate buses. Line reactors are capacitor or user amperage stabilizers placed at points of usage or right before transformers.
What is the meniscus line?
A meniscus line is the little line that you have at the top of a liquid. If you fill a glass up with water, the line that seems to sit at the top of the water that you see when you look at the glass at eye level is the meniscus line.
What is primary reactor?
This item is normally seen in electrical switch gear (or called "Starter "/ "Motor drive") . This device is to reduce the inrush current during motor starting. Another item "Line reactor" .
