2RAA005844A0006A串行模块备件
无功/功率因数控制触点输入（可选）
客户提供的用于此功能的启用/禁用触点连接到标记为52J和52K。只有干燥、不接地的开关触点应应用于Var/功率因数控制触点输入。
并联发电机补偿
客户提供的用于此功能的启用/禁用触点连接到标记为52L和52M。并联发电机补偿只应使用干燥、不接地的开关触点接触输入。
并联控制和Var/PF控制输入
端子52L和52M处的用户提供的触点确定AVR或下垂模式是否激活。
端子52L和52M通常连接到发电机断路器的52b辅助触点。端子52J和52K处的用户提供触点控制var或功率因数校正是否激活残废端子52J和52K通常连接到公用设施连接断路器的辅助触点。桌子4-3列出了不同52L/M和52J/K接触状态下实现的操作模式。
封闭状态指示连续触点闭合
而开路状态指示连续开路。电压匹配（可选）此功能的客户提供的启用/禁用触点连接到标有VM和的端子VMC。只有干燥、不接地的开关触点应用于电压匹配触点输入。
电压匹配也通过52J/K和/或52L/M触点输入的状态启用/禁用。在里面当52J/K或52L/M触点输入为打开或仅52J/K触点输入打开。电源输入
电源输入端子标记为3、4和5。可使用单相或三相电源。单相电源可应用于三个端子中的任何两个。
DECS-100可以直接从各种电源供电，只要DECS-100INPUT电源规范（见第1节，一般信息，规范）。
DECS-100操作电源的示例包括：•发电机（并联供电）
永磁发电机（PMG）
•辅助绕组
当从低阻抗电源向DECS-100供电时，必须作出特殊规定：避免损坏DECS-100。低阻抗电源的示例包括电站服务电源或电源插座。浪涌电流降低模块ICRM-7必须连接在电源和DECS-100输入电源端子（见图4-10）。ICRM-7防止DECS-100通过最大限度地降低浪涌电流水平造成的损坏。ICRM-7也可用于编程DECS-100。但是，初步设置段落说明了临时为DECS-100提供编程电源。有关ICRM-7的更多详细信息，请参见Basler Electric出版物9387900990。
Voltage Matching (Optional) A customer-supplied enable/disable contact for this function connects to the terminals labeled VM and VMC. Only dry, ungrounded switching contacts should be applied to the Voltage Matching contact input. Voltage matching is also enabled/disabled by the state of the 52J/K and/or 52L/M contact inputs. In BESTCOMS, voltage matching can be configured to be disabled when the 52J/K or 52L/M contact input is open or just the 52J/K contact input is open. Power Supply Inputs Power input terminals are labeled 3, 4, and 5. Single-phase or three-phase power may be applied. Singlephase power may be applied to any two of the three terminals. The DECS-100 can be powered directly from a variety of sources as long as the DECS-100 input power specifications are followed (see Section 1, General Information, Specifications). Examples of DECS-100 operating power sources are: • Generator (shunt fed) • Permanent magnet generator (PMG) • Auxiliary winding When powering the DECS-100 from a low-impedance power source, special provisions must be made to avoid damage to the DECS-100. Examples of a low-impedance power source include a station service source or power outlet. An Inrush Current Reduction Module, ICRM-7, must be connected between the power source and DECS-100 input power terminals (see Figure 4-10). The ICRM-7 prevents DECS-100 damage by minimizing the level of inrush current. The ICRM-7 can also be used when programming the DECS-100. However, the Preliminary Setup paragraphs illustrate an alternate method for temporarily powering the DECS-100 for programming. More details about the ICRM-7 are available in Basler Electric publication 9387900990.
