Specification

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What is the 25 kVA pad-mounted transformer?

25 kVA pad-mounted transformer is a distribution transformer for outdoor applications mounted on a concrete or fiberglass pad. It is fully enclosed in a robust steel or aluminum housing assuring protection against environmental elements and guaranteeing safety via the exclusion of live components from unauthorized access. The transformer mentioned in this case is a 25 kVA rated capacity transformer capable of operating small-scale commercial agencies, residential places, or light industrial enterprises. In medium voltage distribution systems, this transformer operates efficiently to step down voltages to lower utilization voltages between 2.4 and 34.5 kV to 120/240V or 277/480V. By its compact design, it brings together the high voltage bushings, low voltage terminals, and the protective devices of bayonet fuses or load break switches for reliable operation and convenient maintenance. Being pad mounted in a tamper-proof enclosure means it can be safely installed in a public or private space reducing potential electrical hazards or vandalism.

Main Components

1. Core and Windings:

It’s the high-grade silicon steel core to minimize energy losses, to the windings of copper or aluminum to good coupling and converts the voltage to good durability.

2. Tank:

The core and windings are housed in a sealed steel or aluminum tank, provide environmental protection, and contain insulation and cooling media.

3. High-voltage Bushings:

These bushings link the transformer to the incoming high-voltage line for safe and trouble-free power delivery from the distribution system.

4. Low-voltage Terminals:

The output of these terminals is connections to supply stepped-down voltage to residential or commercial loads.

5. Load-break Switch:

An electromechanical switch can be used to disconnect the transformer from the high-voltage circuit in a protective (safely), manner during maintenance or emergencies.

6. Bayonet Fuses:

According to the Tank and Transformer Installation manual, these fuses are put inside the tank to protect the transformer from over-current conditions at the time a fault occurs.

7. Cooling System:

Insulation and cooling are the common uses for transformer oil — it keeps the transformer operating at a safe temperature.

8. Gaskets and seals:

The reason is these will make sure that the tank is airtight and leakproof so moisture or contaminants will not enter and harm performance.

9. Pressure relief device:

Protecting the transformer from damage caused by internal pressure buildups due to faults or overheating is a safety feature intended to release internal pressure buildup.

10. Grounding provision:

Grounding Connector helps transformer safety grounded, be operational safe, and minimize electrical hazards.

11. Nameplate:

Includes such basic details as transformer rating, voltage, frequency, and serial number for identification and reference during maintenance or replacement.

Application

1. Residential Areas:

Used typically to reduce voltage in suburban communities which prefer underground distribution systems. It is small enough to support single-family homes or small residential clusters and has excellent methods to deliver reliable power.

2. Commercial Establishments:

Serves as an ideal low-voltage power source for lighting, air conditioning, and other electrical equipment in small businesses, retail shops, and office buildings.

3. Light Industrial Facilities:

The 25 kVA pad-mounted transformer is suitable for small factories, workshops, and warehouses to meet the moderate energy load to run the equipment and machinery.

4. Agricultural Operations:

Implement, used in rural areas to power irrigation systems, barns, or farm equipment, to ensure able (reliable) power for remote agricultural applications.

5. Public Infrastructure:

It provides support for power distribution for parks, recreational facilities, and outdoor lighting systems in urban or rural environments in which aesthetics and safety are an issue.

6. Construction Sites:

Temporary installations in areas where cables for power to the tools, equipment, and temporary lighting will be laid as part of a construction project.

Certificate

Factory

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