Pole Mounted Electrical Transformer with Durable Structure for Overhead Lines

• Customization: Available
• Application: Power, Electronic
• Phase: Single
• Model NO.: oil immersed transformer
• Core: Core-type Transformer
• Cooling Method: Oil-immersed Type Transformer
• Winding Type: Multi-winding Transformer
• Certification: ISO9001-2000, ISO9001
• Usage: Single-phase Transformer
• Frequency Characteristics: High Frequency
• Shape of Core: Three-Phase Transformer Core
• Transport Package: Pallet Packaging
• Specification: Three-phase transformer
• Origin: China
• Production Capacity: 50000pieces/Year
• Package Size: 22.00cm * 28.00cm * 30.00cm
• Package Gross Weight: 1.000kg

Product Description

Product Description

Single-phase transformers are widely used as distribution transformers in developed Western countries, Southeast Asia, North and South America. In a distributed power distribution network, single-phase transformers have great advantages as distribution transformers. It can reduce the length of low-voltage distribution lines, reduce line losses, and improve power supply quality.
The transformer adopts an efficient and energy-saving coiled core structure design and a column-mounted hanging installation method. It has a small size, small infrastructure investment, and reduces the low-voltage power supply radius, which can reduce low-voltage line losses by more than 60%. It is suitable for rural power grids, remote mountainous areas, scattered villages, agricultural production, lighting and power electricity, and can also be used for energy-saving transformation of column-mounted distribution lines in railways and urban power grids.

 Structural features
1. The high-voltage coil is wound with high-quality polyurethane enameled round copper wire, and the low-voltage coil is wound with cable paper wrapped wire. The interlayer insulation uses glue paper, which begins to melt at a certain temperature during the drying process of the coil, producing an adhesion effect, and begins to solidify as the temperature rises, so that the adjacent layers of the winding are reliably bonded into a fixed unit to prevent the displacement of the coil winding, thereby ensuring the safety and reliability of the insulation structure

2. Iron core
The single-phase wound iron core is made of grain-oriented silicon steel sheets or amorphous alloy silicon steel sheets, which can ensure that the direction of magnetic flux flow is consistent with the grain orientation of the silicon steel sheets, so that the excellent performance of the material can be fully utilized, the no-load loss is far lower than the standard requirements, and it is fastened with a special iron core curing paint, which further effectively reduces the noise level of the transformer

3. Use a cylindrical oil tank with a fully sealed structure to enhance operational reliability and maintenance-free normal operation.

4. Other features:
One (or two) high-voltage bushings are led out from the box cover, and the bushings contain current-limiting fuses. It is equipped with one (or two) lightning arresters, which are installed on the box wall, with the ends close to the outlet end of the high-voltage bushing and connected with copper strips. It is equipped with a secondary circuit breaker, which is installed in the box. The box wall is equipped with an external operating handle, overload reset and signal light. The low-voltage bushing is led out from the box wall, X2 is equipped with a grounding device, and the high-voltage winding of the single bushing is led out through the high-voltage bushing at one end and grounded at the other end. The single-phase pole-mounted distribution transformer developed by our company is mainly for foreign export projects. It can be customized with a capacity of 3~333KVA, an input voltage of 33000/30000/17321/13800/7620/6930/6350V, a frequency of 50HZ or 60HZ, and implements IEEE C57, ANSI C57, IEC76, GB10318 and other standards.
Implementation standards
GB1094.1-1996      "Power transformers Part 1 General Principles"
GB1094.2-1996      "Power transformers Part 2 Temperature rise"
GB1094.3-2003      "Power transformers Part 3 Insulation level, insulation test and external insulation air gap"
GB1094.5-2003      "Power transformers Part 5 Short circuit tolerance"
JB/T10317-2002      "Technical parameters and requirements for single-phase oil-immersed power transformers"

single-phase pole-mounted distribution transformer parameters (ordinary silicon steel sheet core)

Type	capacity(kVA)	Voltage combination(V)			Loss(W)		Dimensions mm
		High voltage	Tap range	Low Voltage	No load	load	A	B	C
D11-3	3	33000 30000 17321 11547 13800 7967 7620 6350	±2×2.5%	120 220 240 250	9	45	800	400	500
D11-5	5				19	75	860	430	510
D11-10	10				36	120	910	470	550
D11-15	15				50	195	970	500	580
D11-25	25				80	290	1025	550	630
D11-37.5	37.5				105	360	1225	630	680
D11-50	50				135	500	1235	630	680
D11-75	75				190	650	1300	680	720
D11-100	100				210	850	1350	780	810
D11-167	167				350	1410	1460	830	890
D11-250	250				500	2000	1570	960	950
D11-333	333				650	2500	1660	960	960

DH15-M.R series single-phase pole-mounted distribution transformer parameters (amorphous alloy core)

Type	capacity(kVA)	Voltage combination V			Loss(W)		Dimensions mm
		High voltage	Tap range	Low Voltage	No load	load	A	B	C
DH15-3	3	33000  30000  17321 11547 13800 7967 7620 6350	±2×2.5% or ±5%	220 230 440 460	12	120	760	440	530
DH15-5	5				15	145	790	440	530
DH15-10	10				18	260	820	440	530
DH15-16	16				22	365	870	470	560
DH15-20	20				25	430	870	470	560
DH15-30	30				30	625	1060	610	610
DH15-40	40				35	775	1060	660	660
DH15-50	50				40	950	1080	796	696
DH15-63	63				50	1135	1110	896	696
DH15-80	80				60	1400	1180	924	724
DH15-100	100				70	1650	1230	1000	760
DH15-125	125				85	1950	1280	1050	810
DH15-160	160				100	2365	1340	1260	860

Why Choose Us

Certifications

Company Profile