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Why the rating of lightning arrestor is less than its rated voltage eg for 400 kv system it is 360?
Wiki User
∙ 16y ago
The MAXIMUM rated voltage is the voltage at which the electricity would arc across the insulators The usage voltage is lower than the rated voltage (usually somewhere around 80% The lightning arrestor voltage is in between. It will not pass current at the usage voltage, but will pass current when the voltage exceeds the arrestor threshhold
Wiki User
∙ 16y ago
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How many circuit breakers would a lightning strike trip?
Generally circuit breaker is not designed to trip off in the event of lightning. The system has lightning arrestors which reroute the lightning effect to earth instantly. If there are no lightning arrestors then the equipment are likely to fail upon a lightning strike.
How do you convert a 12 volts solenoid into 24 volts solenoid?
You will have to replace the UPS system with the desired voltage rating. There is no way to convert one to a higher voltage rating. That is why it is important to know what you want before purchase.
Is a Line voltage understood to be any voltage?
The Line normally refers to the live wire in a single-phase system and the three live wire of a 3-phase system. In a 3-phase system the line voltage is usually quoted as the nominal voltage, and that is the voltage between any two of the live wires. The voltage between one of the lines and neutral is 1/sqrt(3) times less.
What device protects system against lightning strikes but does not protect against Sags and brownouts?
It's true that a surge protector would protect against surges like those caused by lightning strikes but would do nothing to help with sags and brownouts. To address both high voltage (surges) and low voltage (brownouts) you would need an uninterruptible power supply (UPS). A UPS provides clean current by powering your computer from the battery while simultaneously charging the battery from the electrical supply.
What are the phase voltages if the line voltages are 100volts?
It depends on the type of three-phase system. If it's a three-wire system, then the phase voltage is numerically equal to the line voltage. If it's a four-wire system, then the phase voltage is numerically equal to the line voltage divided by 1.732 -in your example, this works out to be 5.77 V.
What is Lightning arrestor?
A device, composed of sharp points and/or knife edges, that discharges powerline overvoltages to ground. The term lightning arrestor is a misnomer, as these devices cannot protect against a direct strike to the powerline!
How many circuit breakers would a lightning strike trip?
Generally circuit breaker is not designed to trip off in the event of lightning. The system has lightning arrestors which reroute the lightning effect to earth instantly. If there are no lightning arrestors then the equipment are likely to fail upon a lightning strike.
What is the use of surge arrestor in the telecommunication power supply system?
The same as any surge arrestor equipment - to prevent surges from damaging the (telecom) equipment.
What is a TVSS in Electrical Engineering?
A TVSS is a transient Voltage Suppression System. It activates in times of a high voltage condition. The high voltage condition could be caused by many things such as a lightning strike or a transformer failure.
What is the different between using the low or high voltage in big three phase motors?
These types of motors are classified as dual voltage motors. The highest motor voltage rating is always double the lowest voltage rating. Dual voltage motors are more versatile in matching the system voltage supply that they are connected to. When the motor uses the highest voltage rating the coil legs are in series, dropping the high voltage across two coils. When the motor is connected to the low voltage rating the coils are connected in parallel dropping the low voltage rating across the two coils in parallel. As you can see no matter which configuration that you use the individual coils can never get a voltage across them greater than the lowest of the two voltages available. The connection diagram is usually on the underside of the motor's junction box lid.
How much voltage in three phase line in electric in India. each phase rating 230V?
If the phase voltage is 230 V, then (providing you are describing a three-phase, four-wire, system), then the line voltage will be 1.732 larger -i.e. 400 V.
Is there a rating system for thunderstorms?
No. There is no rating system for thunderstorms.
What is surge voltage?
Surge voltage means sudden big voltage. Surge voltage is of two types lightening surge and switching surge or in electrical engineering, a voltage rise that endangers the insulation of electric equipment. A correct calculation of voltage surges is of great economic and practical importance in the selection of insulation and of measures for power supply system protection, particularly for voltages above 10kilo-volts(kV). There are two types of voltage surges lightning surges and system generated surges.
How can you turn a car headlamp into a desktop lamp?
ITS NOT PRACTICAL BUT FOR THE SAKE OF SOLUTION HERE'S HOW: 1. KNOW WHAT IS THE VOLTAGE RATING OF CAR HEAD LAMP = 12 OR 24 VOLTS DC? 2. KNOW THE WATTAGE RATING OF CAR HEAD LAMP = SAY 100 WATTS 3. KNOW WHAT IS YOUR RESIDENTIAL SYSTEM VOLTAGE = 110VAC OR 220VAC? 4. PURCHASE AN AC TO DC CONVERTER - SELECTABLE 110VAC OR 220VAC INPUT VOLTAGE AND SELECTABLE 12VDC AND 24VDC OUTPUT VOLTAGE WITH A MINIMUM OF 10 AMPERE RATING.
What does computer SPIKE mean?
A Spike is a sudden increase in voltage that lasts for a very short period and exceeds 100% of the normal voltage on a line. Spikes can be caused by lightning strikes, but can also occur when the electrical system comes back on after a blackout.
What does the voltage rating of a capacitor mean?
The voltage rating of a capacitor is the maximum amount of voltage that a capacitor can hold. Going above this rating can damage and destroy the capacitor.AnswerExceeding a capacitor's voltage rating can cause its dielectric to break down. A capacitor's voltage rating is generally expressed as a d.c. voltage so, if it is to be used with an a.c. system, it's necessary to know the peak value of the a.c. voltage, which is determined by dividing the a.c. (rms) voltage by 0.707.
How positive and negative lightning strokes of cloud to ground and intraintercloud strokes are distinguished in lightning detector system?
The lightning system does not distinguish the lightning it simply warns evrey house in the area that there is lightning. This system is only specially installed in communities that face heavy and dangerous lightning! Tyson!
