120kva 3 Phase Isolation Dry Type Transformer

120kva 3 phase isolation dry type transformer is a three phase transformer with a 120 KVA capacity rating, configured with an input voltage of 480V Delta 3 phase AC on the primary side and an output voltage of 380 Delta 3 Phase AC on the secondary side.The product structure is sturdy, and its iron core is made of advanced cold rolled silicon steel sheets, which complies with international standards. Moreover, this 120kva 3 phase isolation dry type transformer has low operating costs and excellent energy efficiency performance, and is suitable for various indoor and outdoor environments. It is designed to be directly installed on the ground.

Transformer Workshop

Substation Workshop

Assemble Workshop

Its iron core has been specially coated to prevent moisture from penetrating, and through an electrical balance design, it minimizes axial force in the event of a short circuit. This not only brings significant energy saving benefits to users, but also offers environmental advantages. The 120kva 3 phase isolation dry type transformer  saves costs for users in the form of lower electricity bills and reduced maintenance costs, which achieves overall lower costs throughout the entire usage period.

Technical parameter:

Producing Equipments:

Wenzhou XiFa electric Power Equipment Co., Ltd has three sets of transformer oven and casting machine, which could produce more than 300 piece of 120kva 3 phase isolation dry type transformer with in one month. Besides the 120 kva isolation transformers, the company also has multiple standard capacity ratings of casting mould, such as 100 kva 300 kva 400 kva and etc.

Semi Finished Product:

It is one of the main strength of Wenzhou XiFa electric Power Equipment Co., Ltd. that the company has been strictly follow the quality management system of ISO 9001. Furthermore, to produce a satisfied isolation dry type transformer, Wenzhou XiFa adopts the capable raw material to make each semi finished product with good quality. To bring a out standarding performance on insulation, the ‌silicon powder‌ used in each isolation dry type transformer shall not mixed with iron powder. It is also important that mixing process of resin and hardener to reject the air bubble formation in epoxy casting. Wenzhou XiFa electric Power Equipment Co., Ltd. not only has experienced employees but also has Fully automated intelligent pouring equipment.

Transformer Core

Casting Winding

Protection Cover IP20

Product Performance:

There are significant design differences between a 120kVA 3 phase isolation dry type transformer and a conventional distribution transformer: The short circuit impedance of a distribution transformer is usually set at 4% to 6%, and it adopts a concentric winding structure to balance the requirements of limiting short circuit current, resisting short circuit impact, and energy efficiency. The short circuit impedance of an isolation transformer is mostly 2.5% to 4%, and the windings are made larger and additional insulation and shielding layers are added to achieve complete electrical isolation.

Testing Center

Icw Testing Equipment

Inquiry Waiting Area

The differences in structure and parameters lead to performance variations: The 120kva 3 phase isolation dry type transformer, with its loose windings and shielding design, can effectively block common mode interference, harmonics and other disturbances, having stronger anti interference ability. At the same time, its low impedance ensures more stable voltage output, but it also results in a larger short circuit current. Moreover, the weak mechanical support of the windings leads to a lower short circuit tolerance compared to distribution transformers. Distribution transformers rely on a higher impedance to limit short circuit current. The compact concentric winding structure has excellent resistance to electrodynamics deformation and is more suitable for the situation where distribution lines frequently experience faults.