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What is the difference between 220KV grid sub station and 132KV grid sub station?
An electrical power substation is a conversion point between transmission level voltages (such as 138Kv) and distribution level voltages (such as 11Kv). A substation has one or more step-down transformers and serves a regional area such as part of a city or neighborhood. Substations are connected to each other by the transmission ring circuit.A electrical grid station is an interconnection point between two transmission ring circuits, often between two geographic regions. They might have a transformer, depending on the possibly different voltages, so that the voltage levels can be adjusted as needed.The interconnected network of grid stations is called the grid, and may ultimately represent an entire multi-state region. In this configuration, loss of a small section, such as loss of a power station, does not impact the grid as a whole, nor does it impact the more localized neighborhoods, as the grid simply shifts its power flow to compensate, giving the power station operator the opportunity to effect repairs without having a blackout.AnswerA 'grid' station is a substation -i.e. a compound or building containing transformers, circuit breakers, busbar systems, and protection system. The correct term is a 'grid substation', which is simply a substation which is part of the grid system -i.e. the transmission system. Other substations include 'primary substations', which interface the transmission system with the distribution system, and 'distribution substations' which could be as simple as a pole-mounted transformer.
Why electrical generation done on 11KV?
In most countries electrical power is generated at high voltages, such as 11 kilovolts.The reason for this is that it is much more efficient to generate and distribute electrical power at such a high voltage instead of at lower voltages.For more information please see the answer to the Related Question shown below: 'Why is electricity transported in high voltage but not in current?'.Another reason is something historical: in olden days when the electricity became popular, engineers had a misconception that there would be a voltage loss of around 10% in the transmission line. So, in order to get 10 kilovolts at the load point, they started sending 11 kilovolts from supply side. This is the reason. It has nothing to do with form factor (1.11).Nowadays that reasoning has changed and we are using 400V instead of 440V, or, in Europe and other 50Hz areas of the world, 230V instead of 220V.
What is the height of tower in 220KV double circuit HT line?
min 18 mtr tower used or ground clearance maintain as IE rule for 220kv transmission line Rakesh vishwakarma
What is the maximum capacity of power transformer at 220kV voltage?
800 MVA
What is the voltage coming out of a station?
Depends on the sub station. It could be 11KV, 33KV, 66KV,110KV, 220KV, 400 KV etc
What is the voltage of high tension electrical transmissions towers?
Usually HV is 33KV and 66KV, EHV is 132KV, 220KV and 400KV and UHV is 800KV and 1200KV
What is the difference between 220KV grid sub station and 132KV grid sub station?
An electrical power substation is a conversion point between transmission level voltages (such as 138Kv) and distribution level voltages (such as 11Kv). A substation has one or more step-down transformers and serves a regional area such as part of a city or neighborhood. Substations are connected to each other by the transmission ring circuit.A electrical grid station is an interconnection point between two transmission ring circuits, often between two geographic regions. They might have a transformer, depending on the possibly different voltages, so that the voltage levels can be adjusted as needed.The interconnected network of grid stations is called the grid, and may ultimately represent an entire multi-state region. In this configuration, loss of a small section, such as loss of a power station, does not impact the grid as a whole, nor does it impact the more localized neighborhoods, as the grid simply shifts its power flow to compensate, giving the power station operator the opportunity to effect repairs without having a blackout.AnswerA 'grid' station is a substation -i.e. a compound or building containing transformers, circuit breakers, busbar systems, and protection system. The correct term is a 'grid substation', which is simply a substation which is part of the grid system -i.e. the transmission system. Other substations include 'primary substations', which interface the transmission system with the distribution system, and 'distribution substations' which could be as simple as a pole-mounted transformer.
What are the methods of maintenance in transmission lines?
Insulators need to be kept clean to prevent arc over, and trees need to be periodically cut back from the wires.supplement. I admire the guys who ride the wee trolleys along the actual cables, high above the ground, checking the condition of the actual cables, even while they are carrying 220KV!
What is allowable value of weight span and wind span ratio in transmission line?
Its depends on location and type of towers. Supposed the transmission line is erected at hill area and second line is erected in desert area and third one in forest area. Then the allowable value of weight span and wind span ratio in transmission line will different. Also this ratio will depends on types of tower . Like the value is different in 132KV, 220KV , 400KV and 765KV.
Why does corona effect is more in village than in city under transmission lines?
for sake of safety and protection the high voltage transmission lines are erected in less populated areas ie. villages , these lines have operating voltages about 220kv , 440kv , 132 kv( high tension lines) . while in cities the voltage is distributed at low voltages ( about 11kv(industry) , 440v residential ) because of safety issue . since corona loss highly depends on the operating voltage of lines thats why it is mostly seen in villages.
Why normally Generator rating are between 11Kv to 22Kv?
Because if we use a generator of 33kv or higher then the radii must be of 2-3 meters that is not good. And also the area of the generator will be very high and losses and heat paameters will also be high. The main point is that we use 11kv generator at power plants and we have to step up the power to 220KV or 500KV etc. So we use 11kv or 22kv instead of 33 kv or higher.. By doing so we save the cost of area required, radii of rotor, and losses produced by higher power generators.
What voltage does New Zealand use?
New Zealand uses 230 V @ 50 Hz, the same as the UK and Australia. Wall power outlets are the same as Australia - two flat live and neutral blades in an inverted-V shape, with a single vertical flat earth pin below New Zealand's mains supply is incompatible with appliances designed for the US and Canada (120 V @ 60 Hz) - so do not attempt to put a US appliance in a NZ socket by bending the pins. High voltage lines are usually at 230/400 V, 6.6kV, 11kV, 22kV (local distribution), 33kV, 50kV, 66kV (sub-transmission), 110kV, 220kV (transmission) and +/-350kV HVDC (the inter-island link connecting the North and South Islands across Cook Strait)
Why electrical generation done on 11KV?
In most countries electrical power is generated at high voltages, such as 11 kilovolts.The reason for this is that it is much more efficient to generate and distribute electrical power at such a high voltage instead of at lower voltages.For more information please see the answer to the Related Question shown below: 'Why is electricity transported in high voltage but not in current?'.Another reason is something historical: in olden days when the electricity became popular, engineers had a misconception that there would be a voltage loss of around 10% in the transmission line. So, in order to get 10 kilovolts at the load point, they started sending 11 kilovolts from supply side. This is the reason. It has nothing to do with form factor (1.11).Nowadays that reasoning has changed and we are using 400V instead of 440V, or, in Europe and other 50Hz areas of the world, 230V instead of 220V.
Where might a step-up transformer be used?
Determine the type you need (primary voltage, secondary voltage, power rating in volt amperes - not watts, size, etc.) then check a catalog at an electrical or electronics parts store for a standard transformer meeting your requirements. If you find one and the store stocks it, buy it; if not have them order it for you.If there is no standard transformer meeting your requirements, one would have to have a company that custom winds transformers design and build it for you. Unless you would be buying in quantity, this will be expensive.
