S13 250kVA 10kv Three Phase Oil Immersed Power Distribution Transformer

This kind of product is applied to power system, it is the main transformer equipment of medium and small-sized transformer substation, supplies power distribution, power illumination for the industry and agriculture.

The company introduces domestic and overseas advanced techniques, adopts the latest material, and optimizes design, which enables the product structure more reasonable and greatly improves the product’s electric strength, mechanical strength, and heat-sinking capability.

Advantages of a three-phase oil-immersed transformer S13-250KVA

-The core of silicon steel is made of 0.18 ~ 0.3mm orientation silicon steel sheet stacked by punching and shearing, which has good stability.

-The coil is made of pure copper. The acetal enamelled wire is used for high voltage and oxygen-free copper conductor or copper foil for low voltage to improve the short-circuit resistance.

-The Dyn11 connection symbol is used to avoid the influence of higher harmonics. It provides high resistance against uncompensated load and improves the quality of power supply.

-Vacuum oiling is adopted by the transformer to remove bubbles in the core and ensure stable insulating property.

The three-phase oil-immersed transformer 250KVA gets quality standards of product

Huarui’s three-phase dry-type transformer 250kVA passes strict quality control at all stages from input to output, ensuring to meet the stringent requirements of International standards fully: IAF,CANS

1. Quality management system ISO 9001: 2015

The operation of the whole HuaRui system is strictly controlled and managed. This ensures the quality of products in all stages, from receiving customer requests to design, materials, production, installation, testing, packaging, delivery, after-sales, all of which operate under strict and logically linked processes.

2. Environmental management ISO 14001: 2015

HuaRui pioneered the application of the environmental management system ISO 14001: 2015. The implementation of this process is a testament to HuaRui’s responsibility to a wide range of customers. HuaRui commit to providing high-quality technical products that are most environmentally friendly.

3. Accreditation certificate ISO / IEC 17025: 2017

ISO / IEC 17025: 2017 certification confirms that HuaRui’s technical quality meets the requirements of all specific international standards for testing and calibration laboratories. All HuaRui’s products are fully tested in a qualified testing room before leaving the factory, ensuring stable quality and providing absolute peace of mind for customers.

Quality certifications of HuaRui's product — **Quality certifications of HuaRui’s product**

Parameters of energy efficiency oil-immersed transformers with capacity from S13 30kVA – 2500kVA and voltage 10kV

Rated capacity(kVA)	Voltage	Maximum no-load losses (W)	Maximum on-load losses(W)	Short circuit impedance Uk (% )
30		80	630/600	4
50		100	910/870	4
63		110	1090/1040	4
80		130	1310/1250	4
100		150	1580/1500	4
125		170	1890/1800	4
160		200	2310/2200	4
200	6.0	240	2730/2600	4
250	6.3	290	3200/3050	4
315	10	340	3830/3650	4
400	10.5	410	4520/4300	4
500	11	480	5410/5150	4
630		570	6200	4.5
800		700	7500	4.5
1000		830	10300	4.5
1250		970	12000	4.5
1600		1170	14500	4.5
2000		1360	18300	4.5
2500		1600	21200	5

FAQ

Our products and business spread over more than twenty provinces and cities in the east, north, southwest and northwest of China and more than ten countries and regions all over the world, so that people of different cultures and different skin colors can enjoy the energy -saving electrical products and services provided by Huarui Electric.