|Replacement of contactors and resistors of the drive of "corn-crake" of EKG-8 excavators, (-10,-12,5,-15,-20, etc.). Provides a uniform tension of a cable of opening of the bottom of a bucket of the excavator.
Consists of two irreversive converters:
Small dimensions, high reliability in operation, simplicity of a design.
The device contains two irreversive converters.
The first thyristor converter (P1) is executed according to the bridge three-phase symmetric scheme and provides power supply of an anchor winding of the engine.
The converter works in two modes:
Parameters of the lock mode
Parameters of the starting mode
The second converter (P2) is executed according to the bridge scheme with relay management and provides power supply of a winding of excitement of the engine.
Specifications of P2
(U2f - the phase tension of a secondary winding of the transformer)
Structurally the converter is executed in the form of the finished module.
Specifications of the converter