Fully Sealed 5-167 kVA Single-Phase Pole-Mounted Transformer

Name: "Fully Sealed 5-167 kVA Single-Phase Pole-Mounted Transformer"
Rating: 5 (340 reviews)

SKU: 5257183714

modelo: D-M Series

Apex Power Systems （Nanjing）Co., Ltd.

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Detalles de producto

D-M Series · Rated 5-167 kVA

Fully Sealed 5-167 kVA Single-Phase Pole-Mounted Transformer

Oil-immersed ONAN distribution transformer for rural grids, irrigation and energy-saving upgrades.

Single-Phase Pole-Mounted Transformer, D-M Series.

Product Summary

The D-M Series single-phase pole-mounted transformer is an oil-immersed, fully sealed distribution transformer rated from 5 kVA to 167 kVA. Mounting directly on the pole removes the need for a distribution room, cutting civil works and reducing low-voltage line losses by more than 60%. It suits rural grids, scattered villages, irrigation loads and energy-saving upgrades where ground space and maintenance access are limited.

Key Features

Pole-mounted installation. Eliminates the distribution room, reducing civil costs and low-voltage line losses by more than 60%.

Fully sealed tank. Sealed carbon-steel construction with strong overload capability and high continuous-operation reliability.

Full capacity range. 5 kVA to 167 kVA covers single homes through small commercial users.

Standards and efficiency. ANSI/IEEE compliant design with DOE/CSA efficiency certification.

Core options. High-permeability silicon steel or amorphous alloy, selected to match project requirements.

Wide operating envelope. Rated for -40 C to +40 C ambient temperature and elevations up to 2,000 m.

Technical Specifications

Model	D-M Series
Type	Single-phase pole-mounted transformer, oil-immersed, fully sealed
Rated capacity	5-167 kVA
Core	High-permeability silicon steel or amorphous alloy (optional)
Windings	Copper windings with NOMEX paper or cable-paper insulation
Tank	Cylindrical or elliptical carbon-steel tank, fully sealed
Bushings	HV: porcelain or composite; LV: porcelain
Cooling	ONAN, natural mineral-oil circulation
Accessories	Drain valve, oil-level gauge, grounding terminal, nameplate
Lifting and mounting	Top lifting eyes and side mounting brackets
Ambient temperature	-40 C to +40 C
Installation altitude	Up to 2,000 m
Compliance	ANSI/IEEE compliant; DOE/CSA efficiency certification

Models and Options

Core material
High-permeability silicon steel or amorphous alloy

Tank form
Cylindrical or elliptical carbon-steel tank

HV bushing
Porcelain or composite

Rated capacity
Any rating from 5 kVA to 167 kVA

Materials and Structure

The magnetic circuit uses high-permeability silicon steel or amorphous alloy. Windings are copper, insulated with NOMEX paper or cable paper. The core and coils sit inside a cylindrical or elliptical carbon-steel tank that is fully sealed, with cooling by natural mineral-oil circulation (ONAN).

High-voltage bushings are porcelain or composite and low-voltage bushings are porcelain. A drain valve, oil-level gauge, grounding terminal and nameplate are fitted as standard, while top lifting eyes and side mounting brackets support pole installation and handling.

Applications

Rural grids in North America, Africa and Southeast Asia
Remote mountainous areas and scattered villages
Agricultural production and irrigation
Energy-saving upgrades for railway and urban grids
Temporary construction and emergency power

Units from this product family have been delivered for rural-grid projects in Mongolia, Azerbaijan and other countries.

Customization

Rated capacity, core material, tank form and bushing type can be configured within the D-M Series envelope. Apex Power Systems reviews each specification against its audited manufacturing partner network and confirms the configuration, drawings and test documents before production.

FAQ

What capacity range does the D-M Series cover?

The D-M Series is rated from 5 kVA to 167 kVA, covering single residential connections through small commercial users.

Why specify a pole-mounted unit instead of a ground-mounted transformer?

Pole mounting eliminates the distribution room, which reduces civil construction cost and cuts low-voltage line losses by more than 60%.

Which core materials are available?

High-permeability silicon steel or amorphous alloy; both are offered as options for the D-M Series.

What cooling method is used?

Natural mineral-oil circulation (ONAN) inside a fully sealed carbon-steel tank.

What environmental conditions are supported?

Ambient temperatures from -40 C to +40 C and installation altitudes up to 2,000 m.

Which standards and efficiency schemes apply?

The design is ANSI/IEEE compliant and carries DOE/CSA efficiency certification.

Which quality certifications cover the supply chain?

The audited manufacturing partner holds ISO 9001:2015, ISO 14001:2015 and ISO 45001:2018 certificates, with a scope covering the design and production of oil-immersed transformers.

Inquiry Information

Apex Power Systems (Nanjing) Co., Ltd. is an international trading and supply partner for power transformers and substation equipment.

Contact: Simon

Email: xuke@apexps-nj.com

Tel / WhatsApp: +86 132-0157-1341

Address: Room 1001, Xinke Building, No. 209 Pubin Road, Jiangbei New Area, Nanjing, Jiangsu, China

Send your required capacity, core preference and bushing type to receive a matching configuration.

Image Filename and Alt Suggestions

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Alt: Single-Phase Pole-Mounted Transformer D-M Series with fully sealed tank and side mounting brackets