Product Description

New style stamford brushless alternator

Voltage Regulators

(1)With this self-excited system the main stator provides power via the Automatic Voltage Regulator (AVR) to the exciter stator.

(2)The high efficiency semi conductors of the AVR ensure positive build-up from initial low levels of residual voltage. The exciter rotor output is fed to the main rotor through a three-phase full-wave bridge rectifier.
(3)The rectifier is protected by a surge suppressor against surges caused, for example, by short circuit or out of phase paralleling.
Winding
All generator stators are wound to 2/3 pitch. This eliminates triplen (3rd, 9th, *5th …) harmonics on the voltage waveform and is found to be the optimum design for trouble-free supply of non-linear loads. The 2 3 pitch design avoids excessive neutral currents sometimes seen with higher winding pitches, when in parallel with the mains. A fully connected damper winding reduces oscillations during paralleling. This winding, with the 2 3 pitch and carefully selected pole and tooth designs, ensures very low waveform distortion.

Terminsal and Terminal Box
Standard generators are *-phase reconnectable with *2 ends brought out to the terminals, which are mounted on a cover at the non-drive end of the generator. A sheet steel terminal box contains the AVR and provides ample space for the customers  wiring and gland arrangements. It has removable panels for easy access.

Shaft and Keys
All generator rotors are dynamically balanced to better than BS***1:Part 1 Grade 2.5 for minimum vibration in operation. Two bearing generators are balanced with a half key.

Heavy Duty Bearing

Single bearing or Double bearing available. Heavy duty bearings are double shielded and pre-lubricated for the life of the bearing. This helps resist contamination and ensures a maximum bearing life.

Phone interference

THF(defined by *0th part of BS***9)  2%.TIF(defined by ASAC*0.*2)<*0
Radio interference

Brushless apparatus and quality AVR ensure little radio interference in transmission. RFI noise filter is also available.
Warranty

One year, whichever comes first.