Each
organization is required electric supply 24X7 to run their company. In
industry, it used for machinery & in IT companies, used for PC, server
& other support systems. Due to that electrical energy is most important
for any company or organization.
Electric
Power is the main source of our daily life activity and use of Electric Power
is increasing every day in the world. Electricity is being generated through
various sources i.e. thermal, hydro, nuclear, solar etc. but its transmission,
distribution and utilization is almost everywhere in the world.
There is a
technical team in facility management to handle this electrical system. In
this team Facility Manager, Assistant Facility Manger, Technical
Executive, Supervisor & Electrician (MST) are working for
continuous power supply.
When you
join any site in facility management then you need to understand the Single Line Diagram of the building.
Single-line diagrams use standard symbols for the different nodes of power systems. The power source is displayed at the top of the diagram so that the power path can easily be followed downstream from node to node and redundant power paths can be visualized side-by-side.
- It is used to analyze a building's
electrical system,
- Building maintenance staff and
electricians rely on one-line diagrams to show them the way around the
electrical system,
- Inaccuracy in this documentation and
failure to update one-line diagrams on a regular basis as electrical
systems invariably grow over time often results in increased down time
when system failures occur,
- Facility supervisors may use the info
found in single-line diagrams to greatly enhance the performance of
service activities,
- The single line diagram offers several
benefits to the facility it outlines, especially identification of
possible problem places, improved safety conformity, and enhanced staff
safety.
The one-line diagram
provides the following information:
- Manufacturers type designations, and
ratings of devices.
- Ratios of current and power transformers,
taps to be used in multi-ratio transformers, and connections of
double-ratio transformers.
- Rating connections of wye and delta power
transformer windings
- Circuit breaker ratings in volts and
amperes.
- The interrupting rating, type, and number
of trip coils on circuit breakers.
- Switch and fuse ratings in volts and
amperes.
- Function of relays.
- The sizes, type, and number of incoming
and outgoing cables.
- The voltage, phase, and frequency of
incoming and outgoing circuits. The available short circuit and ground
currents of the power company system, and type of ground used.
- Metered points and type of metering.
- The amount of the load on all feeders.
In
above SLD there are lots of equipment's which is used to carry power from one
end to another end.
1) Transformer
2)
Breaker
3)
Diesel Generator (DG)
4)
APFC Panel
5)
UPS
6)
ATS
7)
Mega Switch
8)
Isolation Transformer
Very well explained.
ReplyDelete👌👌👌👏👏👍
ReplyDeleteVery nice & clearly explain sir
ReplyDeleteThanks for guide.