What is SLD in substation?
Single Line Diagram (SLD) The single line diagram (SLD) is the most basic of the set of diagrams that are used to document the electrical functionality of the substation. Its emphasis is on communicating the functions of the power equipment and the associated protection and control system.
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.
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 type of your thing is found in 11kV substation?
11kv Substation This substation includes isolator, lightning arrester, step-down transformer, CT metering, circuit breaker, and capacitor bank.
What is SLD mean?
Specific Learning Disability
Definition: Specific Learning Disability means a disorder in one or more of the basic psychological processes involved in understanding or in using language, spoken or written, that may manifest itself in the imperfect ability to listen, think, speak, read, write, spell or do mathematical calculations, including …
What are the components of substation?
What Are Substation Components?
- Lighting arresters.
- Instrument transformers.
- Electrical power transformers.
- Circuit breakers.
- Bus bars.
What is substation capacity?
Substation credible capacity refers to the capacity of the GPS to supply the distribution network that is equivalent at the high voltage distribution network level when considering the faults of the main transformer, 110 kV lines, and circuit breakers.
What is the meaning of 33 11KV substation?
Again, substation of rating 33/11kV means, the substation has been designed to receive 5 MVA of power at 33 kV and it will distribute the same on 11 kV.
What causes SLD?
Illness during and after birth: An illness or injury during or after birth may cause learning disabilities. Other possible factors could be drug or alcohol consumption during pregnancy, physical trauma, poor growth in the uterus, low birth weight, and premature or prolonged labor.
What is 33kv transmission line?
33 kV double-circuit line: 33 single-circuit wood pole: 33 kV lines are either carried on small lattice steel pylons or on wood poles. There are many different variants of lines design but they all produce roughly similar fields.