13.2kV/13.8kV pole-mounted distribution transformers are designed for distributed distribution networks serving overhead distribution loads in urban and rural residential areas. They are also suitable for lightweight and diverse distribution systems. TSTY designs and manufactures two types of single-phase transformers: single-phase pole-mounted conventional transformers and fully self-protected (CSP) transformers. The product has passed UL certification.

Pole Mounted Transformer Parameters

Model	Rated Capacity(kVA)	Voltage(V)			Loss(W)		Dimensions(mm)				Weight (kg)
Model	Rated Capacity(kVA)	H.V.	Tap Range	L.V	No-load	On-load	A	B	C	D	Oil Weightt	Total Weight
D11-10	10	17321 11547 13800 7967 7620 6350	±2×2.5%	120 220 240 250	36	120	910	470	550	380	22	150
D11-15	15				50	195	970	500	580	410	30	210
D11-25	25				80	290	1025	550	630	450	45	258
D11-37.5	37.5				105	360	1225	630	680	520	50	340
D11-50	50				135	500	1235	630	680	520	62	395
D11-75	75				190	650	1300	680	720	550	88	480
D11-100	100				210	850	1350	780	810	610	94	530
D11-167	167				350	1410	1460	830	890	660	138	680
D11-250	250				500	2000	1570	960	950	660	250	990
D11-333	333				650	2500	1660	960	960	660	300	1160

Common Capacities

Main Capacities: 25 kVA, 37.5 kVA, 50 kVA. These are the "golden range" for powering detached houses, small farms, and commercial shops.

Medium Capacities: 75 kVA, 100 kVA. Used for small shopping centers, schools, churches, small factories, or customer groups.

Large Capacity: 167 kVA 250kva 333kva. This is the larger capacity for pole-mounted transformers, used for heavier loads in commercial or light industrial applications.

Pole Mounted transformer applications

Single-phase transformers provide terminal voltage reduction in distributed load areas (such as residential areas and commercial streets), converting medium voltage to 220V/480V for residential or commercial use. In the Philippines, South America, and other regions, they are used as mainstream equipment in power distribution networks, supporting lighting and power supply for small industrial equipment. They can also provide dedicated power for factories and mines. Products have been sold to the Philippines, Venezuela, Peru, Dominica, Chile, Guyana, Argentina, and other countries and regions.

Advantages of single-phase transformers

1. Pole-mounted transformers are installed on poles, occupying no additional ground space, making them particularly suitable for power distribution in urban and rural areas.

2. Pole-mounted transformers have a compact design, small size, and light weight, saving costs.

3. They do not require the construction of expensive distribution rooms or substation foundations; they can directly utilize existing utility poles, resulting in low installation costs.

4. For temporary power supply, seasonal power supply, or rapidly developing areas, pole-mounted transformers can be quickly installed, relocated, or upgraded, with a fast response time.

About TSTY

TSTY Electric Co., Ltd. is a professional manufacturer of transformers, prefabricated substations, and switchgear with 30 years of experience. TSTY single-phase transformers have obtained multiple certifications including UL, CE, and IEEE, and have been exported in large quantities to markets in the Philippines, North America, and Central and South America.