品牌:西门子 Brand: Siemens 型号:6GA2491-1A Model: 6GA2491-1A 类型:自动电压调节器 Type: Automatic Voltage Regulator 输入电压范围:AC 100-240V Input voltage range: AC 100-240V 输出电压范围:AC 220-240V Output voltage range: AC 220 - 240V 频率范围:50/60Hz Frequency range: 50/60Hz 功率:1kVA Power: 1 kVA 保护等级:IP20 Protection grade: IP20 制造商:中船现代 maker: CM-HYUNDAI 6GA2-491-1A generator is a half-wave phase controlled thyristor type Automatic Voltage Regulator and forms part of the excitation system for a brushless generator. In addition to regulating the generator voltage, the circuitry includes under speed and sensing loss protection to ensure safe, reliable control of the generator. Positive voltage build up from residual levels is ensured by the use of proficient semiconductors in the power circuitry of the it. Which is linked with the main stator windings and the exciter field windings to offer closed loop control of the output voltage with load regulations of +/- 1.5%. 6GA2 491-1A 调压板用于西门子和现代1FC6/HFC6发电机输出电压的控制。 基本原理是相复励可控硅励磁分流，调节励磁机的励磁电流/电压以达到不同负载状况下稳定发电机输出电压的目的。 使用这种调压系统的发电机可提供±5% 的电压调节范围以及± 0.5% 的电压调整率。而且具有很强的抗突加突卸的能力。
