Voltage rectifier: what is it?
Voltage rectifier - what is it?
Carpanelli Motori Elettrici – a company specialized in the design and construction of special and non-standard electric motors – also deals with the design of voltage rectifiers.
Voltage rectifier: what is it?
The voltage rectifier is an electronic device that transforms alternating voltage into direct voltage. This allows to convert the alternating voltage, with variable frequency, into direct voltage.
The rectifier can be full wave, therefore with an output voltage equal to 90% of the input voltage; or half-wave, therefore with an output voltage equal to 45% of the input voltage.
Voltage rectifiers for Carpanelli Electric Motors
Carpanelli has designed various versions of rectifiers, for perfect adaptability to an infinite number of applications, both for direct and separate power supply from the engine.
The voltage rectifiers are available in the versions with PG, 6 terminals or 4 fast terminals in opening and closing.
Advantages Carpanelli rectifier
Carpanelli voltage rectifiers guarantee very high operating reliability, even after several years of operation.
Here is an example of rectifiers intervention applied to a DC2 brake on a MA80 2-pole motor without load:
- PG rectifier: 300 msec
- Fast 4-terminal rectifier: 88 msec
The intervention time of an alternating current brake on the same MA80 2-pole motor without load is 80 msec.
It should therefore be noted that the braking time of a DC brake with our fast 4-terminal rectifier is practically comparable to that of an alternating current brake.
On the other hand, if you want to use the 6-terminal rectifier, to have immediate braking comparable to the alternating current brake one, you need to manage the contact on the rectifier via PLC.