Single Phase Pole Mounted Distribution Transformer, 10 kVA/25 kVA/100kVA

Single phase pole-mounted dstribution transformer

1 phase pole-mounted dstribution transformer

As a professional distribution transformer manufacturer, we specialize in producing reliable single phase pole mounted DTR transformers for utility, residential, and rural power distribution applications. Designed according to ANSI C57.12.20 standards, our factory supplies CSP and conventional types with CRGO or amorphous cores and copper/aluminum windings. Available from 5kVA to 167kVA, with customizable primary voltages of 2,400–19,920V and secondary voltages of 120–600V, these pole mounted distribution transformers provide efficient, safe, and long-lasting power solutions.

Specifications

Applicable Standard	ANSIC57.12.20
Type	Completely Self Protected  Type ＆ Conventional Type
Frequency	60Hz, 50Hz
Efficiency Standard	DOE 2016, CSA 802.1, TP1 etc
Core	C.R.G.O Core & Amorphous Core
Winding	Cu-Cu, Cu-Al, AI-AI
Taps	No taps, ±22.5%, +1, - 32.5%, 0, - 4*2.5% etc
Product scope	kVA: 5-167
Primary Voltage	2400-19920V
Secondary Voltage	120-600V

Note: Capacity, primary voltage, secondary voltage, and certification requirements are customizable.

Technical Specifications

Completely Self Protected Type (CSP Type)

Typical Losses and Efficiency (C.R.G.O Core)

Rating (kVA)	HV (kV)	Tap (%)	LV (V)	Loss (W)		Dimension (mm)					Weight (kg)
Rating (kVA)	HV (kV)	Tap (%)	LV (V)	No Load	Full Load	A	B	C	D	E	Oil Weight	Total Weight
15	7.2	±1/-3*2.5%	120–240	60	180	1040	530	770	410	286	45	175
25				100	300	1040	530	775	410	286	46	178
37.5				113	413	1100	580	830	460	286	59	247
50				150	500	1180	580	830	460	286	62	294
75				225	750	1290	616	880	496	591	84	372

15	19.92	±2*2.5%	120–240	58	185	1180	580	650	460	286	76	194
25				78	325	1155	580	660	460	286	75	217
37.5				100	480	1250	620	691	496	286	90	270
50				125	660	1235	645	725	524	286	109	308
75				165	900	1300	680	780	560	591	122	394

Typical Losses and Efficiency (Amorphous Core)

Rating (kVA)	HV (kV)	Tap (%)	LV (V)	Loss (W)		Dimension (mm)					Weight (kg)
Rating (kVA)	HV (kV)	Tap (%)	LV (V)	No Load	Full Load	A	B	C	D	E	Oil Weight	Total Weight
10	7.62	±2*2.5%	120–240	17	110	940	580	650	460	286	62	186
15				22	142	1020	580	650	460	286	64	220
25				33	210	1025	680	755	560	286	99	318
37.5				43	305	1060	730	805	610	286	120	393
50				50	410	1130	730	805	610	286	130	451
75				65	580	1280	780	875	660	591	154	560

10	19.92	±2*2.5%	120–240	12.5	260	1075	480	550	360	286	44	134
15				15.5	395	1085	500	580	380	286	44	150
25				24	500	1085	580	655	460	286	47	215
37.5				32	680	1245	580	655	460	286	69	282
50				38	800	1260	616	691	496	286	96	340
75				60	1030	1330	680	775	560	591	115	428

Conventional Type (CON Type)

CON type pole mounted distribution transformer size

Typical Losses and Efficiency (C.R.G.O Core)

Rating (kVA)	HV (kV)	Tap (%)	LV (V)	Loss (W)		Dimension (mm)					Weight (kg)
Rating (kVA)	HV (kV)	Tap (%)	LV (V)	No Load	Full Load	A	B	C	D	E	Oil Weight	Total Weight
15	7.97	±1/-3*2.5%	120–240	55	140	1055	530	600	410	286	51	176
25				73	240	1085	580	660	460	286	68	231
37.5				101	331	1150	616	695	496	286	86	288
50				115	430	1155	645	725	524	286	96	337
75				152	600	1235	680	780	560	591	114	425
100				181	900	1240	730	860	610	591	144	504
167				266	1400	1450	900	950	660	591	197	753

15	19.92	+0/-4*2.5%	120–240	55	140	1125	580	650	460	286	72	210
25				73	240	1160	616	695	496	286	86	255
37.5				101	331	1235	645	720	524	286	104	311
50				115	430	1240	680	760	560	286	119	368
75				152	600	1305	730	830	610	591	148	485
100				181	900	1340	730	855	610	591	153	537
167				266	1400	1530	900	950	660	591	205	784

Typical Losses and Efficiency (Amorphous Core)

Rating (kVA)	HV (kV)	Tap (%)	LV (V)	Loss (W)		Dimension (mm)					Weight (kg)
Rating (kVA)	HV (kV)	Tap (%)	LV (V)	No Load	Full Load	A	B	C	D	E	Oil Weight	Total Weight
5	7.62	±2*2.5%	120–240	8	75	835	450	520	330	286	23	92
10				12	120	895	480	550	360	286	28	133
15				15	195	915	500	570	380	286	34	149
25				18	290	985	530	605	410	286	41	215
37.5				30	360	1015	580	655	460	286	52	270
50				32	500	995	645	720	524	286	66	318
75				45	650	1115	680	780	560	591	86	440
100				50	850	1110	730	860	610	591	93	560
167				65	1410	1215	925	950	660	591	114	846

10	14.4	±2*2.5%	120–240	12.5	260	1000	480	550	360	286	35	116
15				15.5	395	1020	480	550	360	286	35	129
25				24	500	1030	530	605	410	286	44	174
37.5				32	625	1080	580	650	460	286	59	231
50				38	800	1150	616	690	496	286	80	282
75				60	1000	1250	680	775	560	591	112	404

Two Types of Cores

Pole mounted distribution transformer two core

Accessories

Pole mounted distribution transformer accessories

Pole Mounted Distribution Transformer (CON Type) Features

Energy-Saving Core Design

Adopts a high-efficiency wound core structure to reduce energy losses, improve power distribution efficiency and lower operating costs.

Reliable Sealing Structure

Features a one-piece fastening ring, optimized tank rim and gasket design to maintain uniform pressure and ensure long-lasting sealing performance.

Durable Terminal System

Equipped with tin-plated cast bronze terminals and annular low-voltage terminals, providing reliable connections for copper and aluminum cables.

ANSI Standard Mounting

Uses hot-rolled steel hanger brackets welded to the tank, complying with ANSI standards for secure and reliable pole-mounted installation.

Advanced Safety Protection

Includes a self-sealing pressure relief valve, grounding device and other protective components to improve operational safety and reliability.

Efficient & Low-Cost Operation

The pole-mounted design reduces installation space, construction costs and low-voltage power supply radius, while offering excellent overload capability.

Pole Mounted Distribution Transformer (CSP Type) Features

Self-Protection System: Integrates built-in protection functions against lightning, overload and short circuit, helping prevent power interruptions and protecting distribution lines when transformer faults occur.
Integrated Safety Components: Equipped with internal high-voltage fuses, lightning arresters, low-voltage circuit breakers and protection indicators to enhance system safety and operational reliability.
Reliable Sealing Structure: Features a one-piece fastening ring, specially designed tank rim, drawn cover and gasket system to maintain uniform pressure and ensure excellent long-term sealing performance.
Durable Electrical Connection Design: Adopts high-voltage porcelain bushings with eyebolt terminals and tin-plated low-voltage annular terminals, supporting reliable connections with copper and aluminum cables.
ANSI Standard Pole-Mounted Construction: Uses hot-rolled steel hanger brackets welded to the tank and manufactured according to ANSI standards, ensuring strong mechanical performance and secure installation.
Energy-Efficient & Cost-Effective Operation: Combines an energy-saving wound core design with pole-mounted installation to reduce installation space, construction costs and low-voltage line losses by 60% or more, while providing easy maintenance and reliable continuous operation.

Applications

Our single phase pole mounted distribution transformer is widely used in rural areas, remote regions and scattered villages to provide reliable and high-quality power supply for daily lighting, agricultural production and industrial facilities. With its stable performance and efficient power distribution capability, it is suitable for various pole-mounted distribution systems where dependable electricity supply is required.

In addition, this dist transformer is commonly applied in railway systems, urban power grids and energy-saving projects. It helps support safe and efficient power transmission for residential, commercial and industrial applications.

FAQs

1. What is a single phase pole mounted distribution transformer?

A single phase pole mounted distribution transformer is a type of distribution transformer installed on utility poles to reduce medium voltage electricity to a lower voltage suitable for end users. It is designed with a compact structure, reliable performance, and easy installation for power distribution systems.

2. How does a pole mounted distribution transformer work?

The pole mounted distribution transformer works by using electromagnetic induction to transfer electrical energy between the primary and secondary windings, reducing high voltage electricity to a lower voltage level for safe and efficient power distribution.

3. What capacities are available for single phase pole mounted distribution transformers?

Our single phase pole mounted distribution transformers are available in 5-167 kVA capacities. As a professional distribution transformer supplier, we also provide customized capacity options according to customer requirements.

4. Can primary and secondary voltages be customized?

Yes. The primary voltage and secondary voltage of our single phase pole mounted distribution transformers can be customized to meet different grid standards and customer requirements.

5. Difference between completely self-protected and conventional distribution transformers?

The completely self-protected type integrates protection functions such as overcurrent and overload protection, while the conventional type is designed for customers requiring standard transformer configurations with external protection systems.

6. Why choose pole mounted distribution transformers?

Pole mounted distribution transformers feature a compact structure, flexible installation, reduced construction costs, and reliable performance. Compared with ground-mounted solutions, they require less installation space and help provide efficient power distribution for various grid systems.