What is a mobile substation used for?

A mobile substation is a trailer-mounted substation including a transformer, pumps and coolers, high and low voltage protection, along with relaying, controls, metering, station service, arresters, busswork, and structural support steel.

What is called mobile substation?

The definition of mobile substation or portable substation is a completely self-contained trailer mounted substation consists of transformer, cooling equipment, high voltage switchgear and low voltage switchgear along with metering, protection relaying devices, AC and DC auxiliary power supply, surge protection, and …

Is it dangerous to live near a transformer station?

Q: What are the health risks of living near a substation? Scientific evidence does not support a cause-and-effect relationship between EMF exposure and health risks. People get most of their EMF exposure from electrical wires along the street and from wiring in their homes.

How do you protect a substation?

In a large substation, circuit breakers are used to interrupt any short-circuits or overload currents that may occur on the network. Smaller distribution stations may use re-closer circuit breakers or fuses for protection of distribution circuits.

Which transformer is used in mobile charger?

step-down transformer
Mobile phone chargers contain a step-down transformer to convert the input of 220 V to a working output voltage of around 5 V. Copper windings in a transformer. If the secondary coil has more turns than the primary coil then the output voltage is bigger than the input voltage. We call this a step-up transformer.

How does gas insulated substation work?

A gas insulated substation (GIS) is a high voltage substation in which the major conducting structures are contained within a sealed environment with a dielectric gas known as SF6, or sulfur hexafluoride gas as the insulating medium.

What is substation layout?

The substation receives electrical energy directly from generating stations through incoming power supply lines while it delivers electricity to the consumers through outgoing transmission lines. A substation which is near to the electrical power generation is also known as grid substation.

What is a safe distance to live from a transformer?

200 meters is a good safe distance, which usually ensures values corresponding to the population average. Depending on the loads served by each line you can record normal levels of magnetic fields even 50 meters or less from the cables.

What is current transformer in substation?

A current transformer (CT) is a type of transformer that is used to reduce or multiply an alternating current (AC). Current transformers are the current-sensing units of the power system and are used at generating stations, electrical substations, and in industrial and commercial electric power distribution.

What is isolators in substation?

The isolator is one type of switching device, and the main function of this is to make sure that a circuit is totally not triggered in order to perform the preservation. High voltage type isolation switches are utilized in substations for permitting isolation of equipment like transformers, circuit breakers.

Can a mobile transformer be attached to a mobile substation?

For facilitating road transportation mobile transformer attached to mobile substation are generally manufactured within limit of 60 MVA rating. Generally single incoming and single outgoing feeder is preferred.

What do you need to know about Mobile substations?

–As name implies, this is a substation on wheels –A mobile substation is a completely self-contained trailer mounted unit comprised of transformer, cooling equipment, high and low voltage circuit protection, metering, relaying, AC and DC auxiliary power supplies and surge protection 3 Introduction

What does a step up transformer do in a substation?

A substation that has a step-up transformer increases the voltage while decreasing the current, while a step-down transformer decreases the voltage while increasing the current for domestic and commercial distribution. Substations generally have: 1. Switching equipment 2. Protection equipment 3. Control equipment 4.

How many low voltages does a mobile transformer need?

For fulfilling this purpose also mobile transformer should have multiple low voltages. A practical limit is 5 voltages. More than 5 voltages are extremely difficult to product within size and weight restrictions. When 5 low voltages are required, the high voltage should be limited to not more than 2 voltages.