What do you understand by station black out?

What do you understand by station black out?
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1 Answer

Answer :

When class IV and class III power supply fails and DG’s cannot be started and also this condition prevails for 5 minutes then it is called station black out condition.  
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What is station Black out condition?

Description : What is station Black out condition? 

Last Answer : Simultaneous failures of class IV and class III supply is called Station Black out. In this condition class II power UPS will feed the necessary loads for a 30 minutes of duration. After that supplementary ... (SCR) 5 kVA UPS is used for secondary shut down system (SSS) ion chamber amplifier. 

How can I learn to read and understand all the cool stuff on the blackboards in a science documentary, like Nova from PBS(Public Broadcasting Station) ?

Description : How can I learn to read and understand all the cool stuff on the blackboards in a science documentary, like Nova from PBS(Public Broadcasting Station) ?

Last Answer : answer:Take notes while viewing. Then treat your notes as as a research project. Start with item number one. Take your time. The internet is the most amazing library of all time. None of us, ... on food and nutrition, for example, he eats some pretty weird stuff to make the program interesting.

Before any work on electrical or electronic equipment is performed, which of the following precautions should be carried out? A. De-energize the applicable switchboard bus. B. Bypass the interlocks. C. Secure and tag the supply circuit breaker in the open position. D. Station a man at the circuit supply switch.

Description : Before any work on electrical or electronic equipment is performed, which of the following precautions should be carried out? A. De-energize the applicable switchboard bus. B. Bypass the interlocks. C. ... supply circuit breaker in the open position. D. Station a man at the circuit supply switch.

Last Answer : Answer: C

Operation carried out in Thermal power station?

Description : Operation carried out in Thermal power station?

Last Answer : The water is obtained in the boiler and the coal is burnt so that steam is obtained this steam is allowed to hit the turbine; the turbine which is coupled with the generator generates the electricity

What are the operation carried out in Thermal power station?

Description : What are the operation carried out in Thermal power station?

Last Answer : A: The water is obtained in the boiler and the coal is burnt so that steam is obtained this steam is allowed to hit the turbine, the turbine which is coupled with the generator generates the electricity

List out the components of station output system.

Description : List out the components of station output system. 

Last Answer : Main generator, Generator transformer, PT, CT, CVT, lightning arrestor, wave trap, main 220 kV bus, transfer bus, SF6 circuit breakers and isolators, line protection scheme, GT and Generator protection scheme, bus bar protection scheme etc.  

What do you understand by tan delta for a insulating material?

Description : What do you understand by tan delta for a insulating material?

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What are the main two divisions of MAPS electrical system and what do you understand by it?

Description : What are the main two divisions of MAPS electrical system and what do you understand by it? 

Last Answer : The two main divisions of MAPS electrical system are a. Main output system. Output system supplies power to the grid. Generated voltage is stepped up to 220 kV from 16.5 kV and supplied to grid. b. ... voltage is stepped down to 6.6 kV and 415 V from 16.5 kV and supplies to auxiliary loads. 

Which of the following station is least efficient........ A.Nuclear power plant B.Diesel power station C.Thermal power station D.None of the above

Description : Which of the following station is least efficient........ A.Nuclear power plant B.Diesel power station C.Thermal power station D.None of the above

Last Answer : Ans: C

Coast Guard Regulations (46 CFR), require that an indicating light at the propulsion control station will operate if overloading or overheating occurs in a _______________. A. forced draft blower motor B. steering gear motor C. fuel pump motor D. condensate pump motor

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Sound powered telephone units 'I', 'II', and 'III' of the circuit shown in the illustration are for 'station numbers' _____________. EL-0093 A. 2, 4 and 6 B. 1, 2 and 3 C. 3, 5 and 8 D. 1, 2 and 6

Description : Sound powered telephone units 'I', 'II', and 'III' of the circuit shown in the illustration are for 'station numbers' _____________. EL-0093 A. 2, 4 and 6 B. 1, 2 and 3 C. 3, 5 and 8 D. 1, 2 and 6

Last Answer : Answer: D

An overload in which of the listed motors will result in the illumination of an indicating light at the propulsion control station alarm panel? A. Fuel pump motor B. Steering motor C. Condensate pump motor D. Forced draft blower motor

Description : An overload in which of the listed motors will result in the illumination of an indicating light at the propulsion control station alarm panel? A. Fuel pump motor B. Steering motor C. Condensate pump motor D. Forced draft blower motor

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Sections 'I', 'II' and 'III' of the circuit shown in the illustration are 'station numbers' _____________. EL-0093 A. 2, 4 and 6 B. 1, 2 and 3 C. 3, 5 and 8 D. 1, 2 and 6

Description : Sections 'I', 'II' and 'III' of the circuit shown in the illustration are 'station numbers' _____________. EL-0093 A. 2, 4 and 6 B. 1, 2 and 3 C. 3, 5 and 8 D. 1, 2 and 6

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If coil 'R1-R2' on the transmitter in figure 'A' shown in the illustration is turned 30 degrees clockwise, corresponding coil 'R1-R2' on the receiver should ____________. EL-0092 A. make coils 'S1-S2-S3' turn faster because of induced currents B. ring at the receiving station until the turning stops C. receive a higher voltage depending on the turns ratio D. align itself to the same position if free to move

Description : If coil 'R1-R2' on the transmitter in figure 'A' shown in the illustration is turned 30 degrees clockwise, corresponding coil 'R1-R2' on the receiver should ____________. EL-0092 A. make coils 'S1 ... a higher voltage depending on the turns ratio D. align itself to the same position if free to move

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The pushbutton on the handset of a ship's sound-powered telephone must be depressed to ______________. A. talk then released to listen B. listen then released to talk C. both talk and listen D. ring the station being called

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Last Answer : Answer: C

Which of the following statements is correct concerning the circuits in a sound powered telephone system? A. The ringing circuit is composed of only one common wire to ground. B. The common talking circuit is composed of two ungrounded wires. C. The ringing circuit has two grounded wires connected to each station. D. The talking and calling circuits are electrically dependent upon each other.

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Factors on which material of station busbar depends?

Description : Factors on which material of station busbar depends?

Last Answer : Some of the factors on which station busbar depends are: Current Carrying capacity Short Circuit Stresses Establishing minimum electrical clearances

List the factors to be considered while choosing a site for steam power station:

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What are the activities by which performance of the station will be judged?

Description : What are the activities by which performance of the station will be judged? 

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Why battery room should be located separately in a power station?

Description : Why battery room should be located separately in a power station? 

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What is the station ground resistance?

Description : What is the station ground resistance?

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What are the problems in station operation due to grid under frequency?

Description : What are the problems in station operation due to grid under frequency?

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What are the problems in station operation due to grid under voltage?

Description : What are the problems in station operation due to grid under voltage?

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A generating station has a maximum demand of 50 Mw, a load factor of 60%, a plant capacity factor...

Description : A generating station has a maximum demand of 50 Mw, a load factor of 60%, a plant capacity factor of 45% and if the plant while running as per schedule, were fully loaded. The daily energy produced will be

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What do you understand by the word regur ? (a) Black soil found in the Deccan (b) Grey-brown soil found in Russia (c) Red, colour sticky soil, found in the Amazon area (d) Black soil found in northern Argentina shop.ssbcrack.com

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