Description
机组正常起动时，当发电机达到额定转速时，DCS将投入AVR。当发电机电压达到额定值时，DCS将投入同期装置。发电机与电网的同期是由同期装置自动实现，在同期过程中通过DCS控制AVR、DEH，当同期条件满足时，向发电机断路器发合闸指令。在同期合闸成功，发电机电负荷达到一定值之后，DCS将高压厂用电系统快速从启备变切换到高压厂变上。
机组正常停机时，DCS控制降低机组负荷，当机组负荷降到某一定值时，DCS将高压厂用电系统快速切换到启／备变系统供电；当机组负荷继续降到零，跳开主开关，联跳汽轮机(主汽门关闭)，发电机灭磁。
Juniper PE-1GE-SFP PIC w/ SFP-1GE-TX GBIC for M7i M10i
90 Day Warranty – Free Overnight Shipping!
ADA – Cisco ONS 15800 Add/Drop Amplifiers-FW
30 Day Hardware Warranty – Free Shipping!
New Juniper Ericsson GGSN-C PIC J-20 Router
90 Day Warranty – Free Overnight Shipping
Newbridge Alcatel 90-4669-01-00-P Control 7670 670
90 Day Warranty – Free Overnight Shipping!
Nokia NIF4450 8Port Gigabit Eth ADP Interface IP1280
Free Worldwide Priority Shipping – 90 Day Warranty
Nokia NIF4571000 2PORT COPPER GIGABIT ETHERNET ADP
90 Day Warranty – Free Overnight Shipping!
Redback OIM-SE8-4OC12IR-SM SE800 4 x OC-12c/STM-4c POS
90 Day Warranty – Free Overnight Shipping!
