3 Phase Transformer 6kva/15kva/600KVA/690KVA
3Phase Dry type Autotransformer 380V-208V, 480-380v,
Primary 400 V( star on delta) to Secondary 230V , AC ( delta on star) 50 Hz/60Hz
3 Phase Transformer refers to the transformer with electrical isolation between the input winding and the output winding.
The isolation transformer is using to avoid accidentally touching the electrified body at the same time.
The isolation of transformer is to isolate the current of the original and secondary side winding coils.
The main function of the isolation transformer is to completely insulate the primary side from the secondary side and also isolate the circuit. In addition,
by utilizing the high frequency loss of its iron core, high-frequency clutter can be suppressed from entering the control circuit.
The use of isolation transformer to make the secondary suspension to the ground can only be using in situations with small power supply range and short lines.
At this point, the capacitance current to the ground of the system is not small enough to cause personal injury.
Another important role is to protect personal safety! Isolate hazardous voltages.
With the continuous development of the power system, transformers play an increasingly important role as key equipment in the power system,
and their safe operation directly affects the reliability of the entire power system operation
Transformer coil deformation refers to the axial and amplitude dimensional changes, body displacement, and coil distortion that occur after the coil is subjecting to force.
There are two main reasons for the deformation of the 3 Phase Transformer coil:
firstly,it is difficult to avoid external short-circuit faults during the operation of the transformer,
and secondly, unexpected collisions occur during the transportation and lifting process of the transformer.
The magnetic flux of the transformer core is related to the applied voltage.
The excitation current in the current does not increase with the increase of load.
Although increasing the load will not saturate the iron core, it will increase the resistance loss of the coil.
If the rated capacity is exceeded, the heat generated by the coil cannot be dissipated in a timely manner, and the coil will be damaged.
