180KVA 19KV Single-phase Oil-Immersed Transformer

A 180KVA 19KV Single-phase Oil-Immersed Transformer is a single-phase distribution transformer with a rated capacity of 180 kVA and a 19 kV high-voltage rating. It is designed to step medium-voltage electricity down to a lower voltage suitable for local distribution and end-use loads. The transformer core and windings are immersed in insulating oil, which provides electrical insulation while also transferring heat away from the windings and core during operation.

The 180 kVA rating defines the transformer's capacity to handle the connected load under specified operating conditions, while the 19 kV rating makes it suitable for medium-voltage distribution networks. The single-phase configuration is commonly used for rural distribution, remote power systems, residential loads, and other applications where single-phase power distribution is required.

How Does It Work in a Microgrid?

In a typical microgrid, electricity generated by sources such as solar PV systems or diesel generators is connected to the medium-voltage distribution network. The 19 kV supply enters the transformer through the high-voltage winding, and the transformer uses electromagnetic induction to reduce the voltage from 19 kV to a low-voltage output, such as 0.4 kV.

The 0.4 kV output can then be distributed to local loads, with the final service voltage configured according to the local electrical system. In a 220 V distribution system, for example, the transformer can supply residential buildings, small businesses, street lighting, or other low-voltage loads.

The oil-immersed construction helps dissipate heat generated by the core and windings, making the transformer suitable for changing load conditions. This can be particularly useful in microgrids where the power supply may vary as the system switches between solar generation, battery storage, diesel backup, and other distributed energy sources.

Typical Applications

This type of transformer can be used in PV microgrids, remote power systems, rural electrification, residential areas, small factories, agricultural facilities, and street-lighting networks. It is especially suitable for installations where reliable medium-voltage-to-low-voltage distribution and limited on-site maintenance access are important.

The actual low-voltage output, connection configuration, insulation level, cooling requirements, and installation conditions should be selected according to the local grid standard, load characteristics, and project requirements.

Technical Parameters

Test Report — D-M-180/19 Oil-Immersed Power Transformer

FAQ

Q: Will this transformer handle load swings from solar and diesel?

A: Yeah, that's what we built it for. Oil cooling takes the heat when you switch between sources. No drama.

Q: What kind of maintenance does it need?

A: Once a year, check the oil quality, tighten the connections, wipe down the bushings. Basic stuff. If you skip a year, it's usually fine, but don't make it a habit.

Q: How many homes can one transformer power?

A: 80 to 150 houses at 220V. Depends on how much power each house uses. If everyone's running AC at the same time, maybe closer to 80. Normal usage, you're looking at 100-120.

Q: How long to get one?

A: Normal order: 25-30 days. Need it faster? 15-20 days if we have the parts in stock.

About GUANGBIAN

Factory

We run a 15,000 sqm facility in China. Pump out 3,000+ transformers a year. Got the whole setup: core processing, winding, assembly, testing—all under one roof.

Certifications

ISO 9001:2015 and IEC 60076 compliant. Paperwork's in order if you need it for your project.

Quality Control

Every 180KVA oil-immersed transformer gets checked four times:

· Materials come in, we test them first

· During production, spot checks along the way

· Final tests: turns ratio, insulation, losses, impedance

· Last look before it ships out

Nothing leaves the factory unless it passes all four.

Shipping

Wooden cases, export-grade, moisture-sealed. Load into 20ft or 40ft containers. Got our own crane crew for loading—no third-party hassle.

Why Work With Us

· Buy direct from the factory, skip the middleman markup

· Need custom specs? We'll work with you

· These transformers run 25-30 years if you do basic maintenance

· Call us when you need help, we actually answer

· Spare parts in stock, not "we'll get back to you in 6 weeks"