Transformer -1
General
For powering a three-phase load, the First Power overhead transformer can be utilized as one of three units in a bank or on its own to supply a single-phase load. For three-phase application, the unit can be cluster placed on a pole or directly mounted to a wooden or concrete pole. To supply reliable electricity for everyday lighting, agricultural production and industrial facilities, our single-phase overhead distribution transformer is frequently utilized in rural areas, isolated locations and dispersed communities. In addition to this, it is appropriate for energy-saving plans for the train and city grids.
Conventional Type
The transformer is cylinder sealing structure. Each one is fixed with grounding devices, hooks, supporting lugs that conforms to ANSl standard, and one or two high voltage bushing on the cover, low voltage bushing on the wall of the tank and eye bolt, connecting terminals. The tap changer should be adjusted basing on the instruction after the power off.
CSP Type
This type of transformers are CSP type, which can protect itself from thunder and lightning, short circuits and protect the transiting and distribution line from cur- rent failure because of self-malfunction. Except from some similarities such as cylinder tanks, hooks, lifting lugs, grounding devices, nameplates, core and winding with the conventional type. These types of transformer has characteristics and devices as follows: One or two high voltage bushings are on the cover with a fuse.
One or two arresters are installed on the wall of the tank, whose top end is near to the high voltage bushing, and connected to the bushing by a copper strip. One secondary breaker switch is above the winding inside the tank, and here are op erating handle, overload reset and signal light Low voltage bushing is educed from the wall of the tank, grounding device is fixed to position X2.One end of the single bushing leads out through the high voltage bushing, the other end is ground connection.All units are built in accordance with IEC6O076, ANSI, IEEEC57.12.20, CSA C2.1-06, CSA C 2.2-06 and etc