Stamford HCI634 Alternator – 3-Phase Brushless Synchronous Alternator - 2004

The Stamford HCI634 is a robust brushless synchronous alternator designed by Newage International Ltd. for continuous duty applications. Manufactured in 2004 in England, it features a self-excited excitation system paired with the AVR 440 automatic voltage regulator to ensure tight voltage regulation within ±1%. With an enclosure protection rating of IP23 and Class H insulation, this alternator is suitable for industrial environments. The stator is configured in series star (S. Star) connection and is air-cooled using an integrated internal fan. Its single-bearing mounting configuration makes it well-suited for generator sets, especially in power generation and backup systems.

Specifications:

– Manufacturer: Stamford (Newage International Ltd.)
– Model / Frame: HCI634
– Serial Number: X63A022325
– Country of Origin: England
– Year of Manufacture: 2004
– Type: 3-Phase Brushless Synchronous Alternator
– Application: Continuous Duty (CONT)
– Excitation System: Self-excited
– AVR Model: AVR 440 (Digital/Analog)
– Excitation Voltage: 45 V
– Excitation Current: 2.2 A
– Stator Winding: 311
– Stator Connection: Series Star (S. Star)
– Insulation Class: Class H
– Enclosure Rating: IP23 (Drip-proof)
– Cooling Method: Air-cooled with internal fan
– Bearings: Single bearing (dual bearing optional)
– Mounting Type: Base-mounted
– Phase Configuration: 3 Phase, 4 Wire
– Voltage Regulation (Steady State): ±1%
– Transient Recovery Time: < 300 ms to ±1% rated voltage
– Voltage Setting Range: ±5% via potentiometer
– Regulation Accuracy: ±1%
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