100 Kva 3 Phase Padmounted Transformer

100 kva 3 phase pad mounted transformer is an integrated outdoor power distribution complete equipment. The interior of the cabinet is divided into three independent chambers: high voltage chamber, transformer chamber, and low voltage chamber.

It integrates high voltage switches, fuses, lightning arresters, main transformer body, low voltage distribution switches, meters, and various protection devices. The overall layout is neat and compact, and no separate power distribution room needs to be built.

The standard voltage specification of the transformer. It adopts the Dyn11 connection group and operates at 50 hertz of industrial frequency. The rated currents of high and low voltage are matched to meet the requirements. The transformer's transmission performance is stable and reliable. The 100 kva 3 phase pad mounted transformer has excellent heat dissipation capabilities. It has two cooling forms: oil immersed self cooling and dry type air cooling. It also has protective features against dust and rain.

The operating loss is low, the running noise is small, and it is equipped with multiple safety protection mechanisms for overload, short circuit, and lightning strike. It has strong anti interference ability, can adapt to complex outdoor environmental operations for a long time, has excellent power supply stability, and the later maintenance and repair are relatively simple.

Technical specification:

Q: For a 100 kva 3 phase padmounted transformer, when it is installed outdoors, why are there two configurations to be distinguished, namely "ring network feeder type" and "radial feeder type"?

A: Under the radiation feeder configuration, the primary side of the transformer is only connected to a single cable, and there is no load switch inside, resulting in a simple structure and lower cost. However, the fatal drawback of this method is that when the 100 kva 3 phase padmounted transformer needs maintenance or this section of the cable fails, the entire feeder power supply must be cut off, causing all downstream users on the same line to be completely powered off. The power supply reliability completely depends on the continuity of a single channel.

Under the ring network feeder configuration, the primary side of the 100 kva 3 phase padmounted transformer is reserved with two incoming interface ports and a built in load switch, which can be connected in series to the ring network circuit. When the transformer itself needs to be taken out of operation or a cable on one side fails, the load switch can be operated to isolate the 100 kva 3 phase padmounted transformer from the ring network, while maintaining the continuity of the main trunk line of the ring network, enabling other users to still be supplied power through the other side of the cable, thereby achieving the goal of planned maintenance without interrupting the main line and cable faults only isolating the faulty section without expanding the power outage area. Although this configuration adds one primary side switch equipment and a second incoming bushing, the cost increases by approximately 15% to 20%, but significantly improves the power availability indicators of the distribution system.

Equipment

Product Detial

Ring Type

Terminal Type

Transformer Body

Product in Process

Test Center

Winding Workshop