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Electrical & Grid

Transformers

35kVA Pad Mounted Transformer

Brand: WISHPOWER
Standard: GB/T10228-1997、GB6450-1986、IEC726
Factory Price Pad Mounted Transformers
Vector Group: Yyn0, Dyn11
Insulation Level: LI75AC35/AC3 LI170AC70/AC3

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DESCRIPTION

Specification

Primary Voltage (V)	33000
Model	TR D1SP-10-33000-120/240	TR D1SP-15-33000-120/240	TR D1SP-25-33000-120/240	TR D1SP-37.5-33000-120/240	TR D1SP-50-33000-120/240	TR D1SP-75-33000-120/240	TR D1SP-100-33000-120/240	TR D1SP-167-33000-120/240
KVA Rating	10	15	25	37.5	50	75	100	167
No-Load Loss (W)	60	71	101	133	133	187	223	223
Full Load Loss at 85°C (W)	103	177	267	383	511	653	815	1484
Total Losses at a load factor of 80% (W)	140	191	278	380	461	606	759	1173
80% load for distribution transformers (Efficiency in % at 85°C)	98.28	98.43	98.63	98.75	98.86	99.00	99.06	99.13
Impedance (85°C)	2.2~3.14	2.2~3.14	2.2~3.14	2.2~3.14	2.2~3.14	2.2~3.14	2.2~3.14	2.2~3.14
Oil Weight (L)	94	94	94	94	94	94	94	138
Total Weight (KG)	510	515	520	525	530	535	550	680
Dimension (mm) A	750	750	800	840	840	950	1000	1000
B	850	850	900	950	950	1000	1000	1000
ØD	800	800	900	900	900	950	950	950
H	500	500	520	520	520	550	550	660
Winding Material	AL-AL	AL-AL	AL-AL	AL-AL	AL-CU	AL-CU	AL-CU	AL-CU

If you are interested in our transformers and related transformer accessories, please get more information and professional solutions through this website or directly through info@wishpower.net

What is the 35kVA Pad Mounted Transformer?

35 kVA pad-mounted transformer is a compact, fully enclosed electrical device intended for outdoor installation in utility, industrial, and commercial power distribution systems. Typically the transformation of voltage levels is efficient and it typically steps down medium voltage from distribution lines down to voltage levels needed for end-user applications (low voltage). This transformer, which is built with a weatherproof steel enclosure, is designed to be durable and weatherproof and protect against any environmental situation such as dust, moisture, and temperature fluctuations. 35KVA shows that it possesses a continual load of 35-kilovolt amperes, which is appropriate for small to medium-sized facilities needing a profound power supply. It’s tamper-proof, with a sealed, tamper-proof design for safety in public or accessible areas conforming to industry standards for fault prevention and electrical insulation. The transformer is internally designed with mineral oil or other environmentally friendly alternative for insulation and cooling, consequently providing consistent performance under different load conditions.

How long does a pad-mounted transformer last?

The pad-mounted transformer is designed to have a long service life of, typically, 25 – 40 years, depending on the quality of the materials, manufacturing standards, and operating conditions. The life span is influenced by load levels, environmental conditions, and maintenance practices. With durable enclosures and a robust insulation system, they are designed to be able to withstand harsh weather, temperature fluctuations, and external contaminants while still delivering the reliability over decades that you expect. With proper maintenance and regular inspections alike, oil testing, cooling system checks, and load monitoring can add a considerable amount of years to its operating range. Often these advanced designs advance from corrosion-resistant coatings to sealed enclosures to protect against the elements and rust. Proper transformer installation practices and not putting more load than the transformer is designed for will also help prevent premature aging of the transformer. Most pad mounteds remain in service well past their life expectancy, and with care are providing efficient and consistent power distribution.

How far should a pad-mounted transformer be from a building?

Safety regulations dictate the distance between a pad-mounted transformer and a building to minimize the risk of electrical hazards, fire risks, and ease of servicing the transformer. For example, a pad-mounted transformer should usually be installed a minimum of 10 feet (about 3 meters) away from a wall, door, or window of a building. This allows the risk of fire spreading to the building in case of a malfunctioning transformer and gives enough distance to avoid overheating. In very dense populated neighborhoods or downtowns, the local codes and utility company requirements for stormwater devices may be more restrictive. It also maintains safe access for maintenance people and equipment and the risk of accidental contact or interference. Moreover, transformers should be located far away from materials that can catch and heat up quickly or from flammable plants or trees. Placement is proper, and therefore complies with safety standards while remaining reliable in operation, and easily accessible for inspections or repairs.

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