Table of Contents
What is substation building?
A substation is a part of an electrical generation, transmission, and distribution system. Substations transform voltage from high to low, or the reverse, or perform any of several other important functions. The word substation comes from the days before the distribution system became a grid.
What is an industrial substation?
Many industrial users apply the term to any installation where there are transformers, switchgear, motor control centers, or a combination thereof, regardless of voltage level. But as noted in Part I of Art. 100, it clearly designates that it applies to equipment operating at over 600V.
How are substations classified?
4 Classification based on application Primary Grid Substation – Created at suitable load centre along primary transmission lines. Secondary Substation – Along secondary transmission line. Bulk supply and industrial substation – Similar to distribution sub-station but created separately for each consumer.
What is sub substation?
Definition: Sub station. Description: An electrical substation is a subsidiary station of an electricity generation, transmission and distribution system where voltage is transformed from high to low or the reverse using transformers.
What is the main purpose of a substation?
The purpose of a substation is to ‘step down’ high voltage electricity from the transmission system to lower voltage electricity so it can be easily supplied to homes and businesses through our distribution lines.
Why is substation needed?
To step up or step down AC voltage using transformer(s) Voltages at the distribution end need to be stepped down for utilization by customers. Substations provide the necessary real-estate to install a transformer for power transmission and distribution.
Why is it called a substation?
Actually, the name came before the electrical system was a grid. These substations were smaller plants that were no longer being used because of the construction of larger generation plants. They received their energy from these larger plants and then distributed; thus the name “substation”.
Why 110v DC is used in substation?
The main reason for using DC supply in substation or power stations is to provide a continuous power supply to the control circuit. DC is a reliable source of power supply because it can obtain from batteries. Only a battery can give continuous power supply until it fully discharges.
Why batteries are used in substation?
Summary. A battery is a primary component of a substation or switchyard DC control system. The function of the control system is to supply control power to operate critical devices such as protective relays, alarms and status indicators, supervisory and communications equipment, and switchgear operating circuits.
What is the difference between a substation and a transformer?
A transformer is an electrical machine which either steps up, or steps down, voltage. A substation is a location where transformation and/or switching takes place. In its simplest form, a substation can be a pole- or pad-mounted transformer, together with its protective equipment (hv and lv fuses).
Which is the best definition of a substation?
Substation Definition: The electrical substationcan be defined as a network of electrical componentscomprising of power transformers, busbars, auxiliaries, and switchgear etc.
Is there a wall enclosure for a substation?
No wall enclosure for transformer required and substation space requirement is reduced. For example, with VCB HT Panel, dry transformers, the substation layout can be one hall. Fluctuating voltage is quite harmful to the substation equipment.
What is the Civil Engineering of a substation?
What is the civil engineering of substation? The civil engineering includes a large quantity of information and details for the structural drawings required to design switchgear installations. The structural drawings are the basis for producing the structural design plans (foundation, shell and reinforcement plans, equipment plans).
Can a dry transformer be used in a substation?
They are allowed when the substation is away from the main building. However it is recommended to go for dry transformer in place of oil cooled transformer for following reasons: Not prone to fire and explosion thereof. Practically maintenance free. No wall enclosure for transformer required and substation space requirement is reduced.