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New cummins onan age stamford SX460 avr voltage regulatr
ORIGINAL REPLACEMENT PART FOR OEM GENTEC GENERATORS
EXACT FIT REPLACEMENT FOR:
Newage Stamford SX460 Automatic Voltage Regulator.
Replaces: NEWAGE P/N, E000-24602, ONAN P/N, 305-0982, and OEM GENTEC P/N, OEM-SX460
* This OEM-SX460 AVR replacement unit has the exact same fit, form, and function as the NEWAGE STAMFORD SX460.
* Also fits various imported generators.
Standard NEWAGE Applications:
Stamford Alternator: BC16, BC18, UC22, UC27
OEM-SX460 is a half-wave phase-controlled thyristor type Automatic Voltage Regulator (AVR) and forms part of the excitation system for a brush-less generator.
In addition to regulating the generator voltage, the AVR circuitry includes under-speed and sensing loss protection features. Excitation power is derived directly from the generator terminals. Positive voltage build up from residual levels is ensured by the use of efficient semiconductors in the power circuitry of the AVR.The AVR is linked with the main stator windings and the exciter field windings to provide closed loop control of the output voltage with load regulation of +/- 1.0%.
In addition to being powered from the main stator, the AVR also derives a sample voltage from the output windings for voltage control purposes. In response to this sample voltage, the AVR controls the power fed to the exciter field, and hence the main field, to maintain the machine output voltage within the specified limits, compensating for load, speed, temperature and power factor of the generator.
A frequency measuring circuit continually monitors the generator output and provides output under-speed protection of the excitation system, by reducing the output voltage proportionally with speed below a pre-settable threshold. A manual adjustment is provided for factory setting of the under frequency roll off point, (UFRO).This can easily be changed to 50 or 60 Hz in the field by pushon link selection. Provision is made for the connection of a remote voltage trimmer, allowing the user fine control of the generator's output.
* Voltage: Jumper selectable 95-132Vac or 190-264Vac
* Frequency: 50-60 Hz nominal
* Voltage: max 90Vdc at 207Vac input
* Current: continuous 4 A dc, Intermittent 6 A for 10 secs
* Resistance: 15 ohms minimum
* REGULATION: +/- 1.0% (with 4% engine governing)
* THERMAL DRIFT: 0.05% per deg. C change in AVR ambient (after 10 min.)
* Filed current to 90% 80 ms
* Machine Volts to 97% 300 ms
* +/-10% with 1 k ohm 1 watt trimmer (applies to mod status F onwards. generator de-rate may apply. check with factory)
* Set point 95% Hz (factory set, semi sealed, jumper selectable)
* Vibration: 20-100 Hz 50mm/sec
* Operating temperature: -40 to +70 C
* Relative Humidity 0-70 C: 95% (non condensing)
* Storage temperature: -55 to +80 C
All returned items must be in original box and packaging.
