Mecc Alte AVR

The DSR is a voltage regulator for synchronous alternators, designed for stand alone working and calibration; to maximize performance, the regulator should be understood as part of a system made up of at least three components: the DSR (control unit), a communications module (DI1, for example) and a supervision unit, as illustrated in figure 9 or 10.
The connectors for connection to and from the power generator and communications module are located on the DSR regulator.
The supervision unit can be made up of a personal computer, another “synoptic” device or both; it does not have the function of controlling the system in real time, but allows programming and visualisation of all operational parameters of the DSR.
If it is equipped with an RS485 or RS232 serial interface, the DI1 communications module is necessary for its connection.

This is a negative feedback system, in which the constantly maintained variable is the alternator voltage output. This voltage, after adequate conditioning, is compared with a signal that is stabilised in voltage, temperature and age. The result is an error signal which, when opportunely amplified and compensated, produces a control level that enters an impulse width modulator.
The output of this modulator pulses an SCR with continuous excitation voltage produces in conjunction with, undergoing electromagnetic conversion by generator operation, transforms into generator output voltage. The value of this size is controlled by the “sensing” block.

The UVR6 type voltage regulator is an advanced design electronic regulator that ensures excellent performance of the alternators while they are running and during starting. The regulator is equipped with a complete protection system against operation conditions that could be dangerous for the machine. The UVR6 regulator is suitable for being used with all Mecc Alte alternators and is standard supply for power outputs above or equal to 85 KVA, both three-phase and single phase.
The components of this regulator (see fig. 8) are modern utilising solid-state integrated circuit technology. These components were chosen to guarantee maximum durability and reliability. The entire unit, also made using a hybrid circuit, is inside a box of modest dimensions that has been impregnated with resin to protect against vibrations and ingress of water.

This is a negative feedback system, in which the constantly maintained variable is the alternator voltage output. This voltage, after adequate conditioning, is compared with a signal that is stabilised in voltage, temperature and age. The result is an error signal which, when opportunely amplified and compensated, produces a control level that enters an impulse width modulator.
The output of this modulator pulses an SCR with continuous excitation voltage produces in conjunction with, undergoing electromagnetic conversion by generator operation, transforms into generator output voltage. The value of this size is controlled by the “sensing” block.