How do you design a substation?
Electrical layout design which includes:
- Positioning of equipment.
- Bus design.
- Design of manhole and conduit system.
- Design of auxiliary A.C. power system.
- Selection of D.C. batteries and battery chargers.
- Layout of control house.
- Grounding and lightning protection design.
How do you calculate substation capacity?
This is a “Two Step Division”, technique: VA / Voltage = Amperage. Three Phase Example: Using a 75 KVA Three Phase Transformer as a starting point. 75 KVA is equal to 75,000 VA. (K= 1,000) The full value in VA, 75,000 divided by 1.732 = 43,302, which is then divided by the Voltage 208V = 208.2 Amperes.
What are the three types of substations?
Types of Substations by Operating Voltage Levels
- High Voltage Substations (HV Substations) – Involving voltages between 11 KV and 66 KV.
- Extra High Voltage Substations (EHV)– Involving voltages between 132 kV and 400 kV.
- Ultra High Voltage(UHV) – Operating voltage above 400 KV.
What is the area required for 220 kV substation?
25 acres
Foundation Mounted type Substation used above 250 kVA and 33 kV….Detailed Solution.
| Type of Substation | Area Required |
|---|---|
| 132 kV Substation | 10 acres |
| 220 kV Substation | 25 acres |
| 400 kV Substation | 50 acres |
What is kVA substation?
of electric supply. This is accomplished by suitable apparatus called Substation. For example, generation voltage (11KV or 6.6KV) at the power station is stepped up to high voltage (say 220KV or 132KV) for transmission of electric power. The assembly of apparatus (e.g. transformer etc.)
How many amps is a 1500 kVA transformer good for?
kVA to Amps Conversion Chart
| kVA | kW | 240 V |
|---|---|---|
| 1,125 kVA | 900 kW | 2,706 A |
| 1,250 kVA | 1,000 kW | 3,007 A |
| 1,563 kVA | 1,250 kW | 3,760 A |
| 1,875 kVA | 1,500 kW | 4,511 A |
How is kVA load calculated?
Use the formula: P(KVA) = (V^2/R)/1000 where R is resistance in ohms. For example, if V is 120 volts and R is 50 ohms, P(KVA) = V^2/R/1000 = (14400/50)/1000 = 288/1000 = 0.288 KVA. Calculate power rating in KVA when you know power in watts and the power factor.
How many MW is a substation?
The North Street Substation has ten 6 MW (300 amp) breakers. Two 4160/13.2 transformers in the North Street Substation have a combined 10 MW (500 amp) capacity.
What is kv substation?
This is accomplished by suitable apparatus called Substation. For example, generation voltage (11KV or 6.6KV) at the power station is stepped up to high voltage (say 220KV or 132KV) for transmission of electric power. The assembly of apparatus (e.g. transformer etc.) used for this purpose is the substation.
Why 11KV 22kv 33KV 66kv 132kv?
The reason is something historical. In olden days when the electricity becomes popular, the people had a misconception that in the transmission line there would be a voltage loss of around 10%. So in order to get 100 at the load point they started sending 110 from supply side. This is the reason.
What is the 33 11KV substation equipment?
Power substation consists of: Switchgear: isolators, circuit breakers, earthing switches etc. Controlgear: current transformers, voltage transformers, contactors etc. Protection equipment: relays, fuses, surge arrestors etc.