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SACE750090R0002,操作面板
跟随器“Blk.toFlwr”闭锁重合闸
主重合闸功能发送激活的“Blk”。toFlwr’信号到跟随者的桅杆。如果主控装置的重合闸尝试不成功,则noSucc’I/P将阻止跟随器的重合闸如由其Def的生成所指示的。跳闸输出。
3.5.32.6.双工逻辑还包括用于带有两个断路器的线路的双工逻辑(见图3.5.32.7)。
结合双工方案,请注意以下事项:注:其中一个断路器必须设置为低优先级。
为了使方案正确运行,相应的CB信号必须连接到“CB开路”和“CB2开路”
双工逻辑输入(设置为“关闭”将禁用双工逻辑)。如果单独的“CB就绪”和断路器不提供“断路器断开”信号:
连接两个断路器信号触点
“CB就绪”(气压或弹簧充气)和“CB关闭”串联。为此,必须设置“t关闭”
大于最大弹簧充电时间,以在成功重合闸的情况下抑制最终跳闸信号。将组合信号分配给相应的“CB就绪”输入。分配相同的信号,但反向至相应的“断路器开路”输入。如果在“t Oper”过去之前发出跳闸信号
死区时间是跳闸信号(“跳闸断路器”)与以及关闭信号(“关闭CB”)。
必须为每个重合闸循环单独输入所需的死区时间。这需要设置以下参数:“t死1 1P”,“t死1 3P”,“t死亡2”,“t死亡3”和“t死亡4”。提供外部切换死区时间第一次(快速)重合闸尝试的死区1 1P'和“死区1 3P”至第二设置。相应的附加时间段
可通过参数“t死1 Ext”设置,并通过二进制I/P“扩展t1”激活。
第二。,第三。第四。重合闸尝试始终为三相。
延长死区时间“不死区1 Ext”
该时间为延长死区时间提供了便利(例如通信信道可能有缺陷或存在冗余具有2个自动重合闸功能的方案)。延伸的死亡时间由二进制输入“扩展t1”启用。
Blocking reclosure by the follower ‘Blk.toFlwr’
The master reclosure function sends an active ‘Blk.toFlwr’ signal
to the follower ‘Mast.noSucc’ I/P to block reclosure by the follower, if the reclosure attempt by the master was unsuccessful
as indicated by the generation of its ‘Def.Trip’ output.
3.5.32.6. Duplex logic
A duplex logic for a line with two circuit-breakers is also included
(see Fig. 3.5.32.7).
Observe the following in connection with a duplex scheme:
Note: One of the breakers has to be set to low priority.
For the scheme to operate correctly, the corresponding CB
signals must be connected to the ‘CB open’ and ‘CB2 open’
inputs for the duplex logic (setting to ‘off’ disables the duplex
logic). Follow the procedure below, if separate ‘CB ready’ and
‘CB open’ signals are not available from the circuit-breakers:
Connect the two circuit-breaker signalling contacts
‘CB ready’ (air-pressure or spring charging) and
‘CB closed’ in series. For this, ‘t Close’ must be set
longer than the maximum spring charging time to suppress the definitive trip signal in the case of a successful reclosure.
Assign the combined signals to the corresponding
‘CB ready’ inputs.
Assign the same signals but inverted to the corresponding ‘CB open’ inputs.Provided the trip signal is issued before ‘t Oper’ elapses, the
dead time is the period between the tripping signal (‘Trip CB’)
and the close signal (‘Close CB’).
The required dead time must be entered separately for each reclosure cycle. This necessitates setting the following parameters:
't Dead1 1P’, ‘t Dead1 3P’, ‘t Dead 2’, ‘t Dead 3’ and ‘t Dead 4’.
Provision is made for externally switching the dead times ‘t
Dead1 1P’ and ‘t Dead1 3P’ for the first (fast) reclosure attempt
to a second setting. The corresponding additional time period
can be set with the aid of the parameter ‘t Dead 1 Ext’ and activated via the binary I/P ‘Extend t1’.
The 2nd., 3rd. and 4th. reclosure attempts are always threephase.
Extended dead time ‘t Dead 1 Ext’
This time provides facility for extending the dead time (e.g. should
the communications channel be defective or for a redundant
scheme with 2 auto-reclosure functions). The extended dead
time is enabled by the binary input ‘Extend t1’.