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10kV高压开关柜培训课件

  • 2026-04-04 05:01:33
10kV高压开关柜培训课件

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五、高压开关柜“五防”

防止误分合断路器—断路器手车必须处于工作位置或试验位置时,断路器才能进行合、分闸操作。

防止带负荷移动断路器手车—断路器手车只有在断路器处于分闸状态下才能进行拉出或推入工作位置的操作。

防止带电合接地刀—断路器手车必须处于试验位置时,接地刀才能进行合闸操作。

防止带接地刀送电—接地刀必须处于分闸位置时,断路器手车才能推入工作位置进行合闸操作。

防止误入带电间隔—断路器手车必须处于试验位置,接地刀处于合闸状态时,才能打开后门;没有接地刀的开关柜必须在高压停电后(打开后门电磁锁),才能打开后门。

机械闭锁功能

当接地开关及断路器在分闸位置时,手车才能从“试验/隔离”位置移至“工作”位置;而接地开关在合闸位置时,手车不能从“试验/隔离”位置移至“工作”位置;

只有手车处于“试验/隔离”位置或移开位置时,接地开关才能操作;

断路器只有在断路器手车已正确处于“试验/隔离”位置或“工作”位置时才能进行合闸操作;

断路器手车在“试验/隔离”位置或“工作”位置时,但没有控制电压时,断路器仅能手动分闸,不能合闸;

手车在“工作”位置,二次插头被锁定,不能被拔除。

仅当接地开关分闸时,电缆室门才允许被打开,且只有关闭电缆室门后,接地开关才允许被分闸。

当手车移开后,活门可用挂锁锁定。

电气闭锁功能:

断路器在分断状态,在该回路上的邻柜隔离小车非电流互感器小车才能摇动。

隔离小车或电流互感器小车在“工作”位置时,在该回路的邻柜,断路器才能合闸。

母线带电时,隔离小车或电流互感器小车不能拉出推进。

母线带电时,接地开关不能进行操作。    

八、10KV开关柜常见事故与处理方法

1、断路器合不上

1)操作电源电压不足,应调整;

2)合闸线圈回路内熔断器熔断或回路导线松动,应更换保险,接通回路;

3)操作控制开关损坏,辅助开关接触不良,应更换操作控制开关,更换辅助开关;

4)合闸线圈烧坏,应更换;

5)二次插头接触不良,应正确操作,保持接触良好;

6)各种行程调整不当,应按工艺要求重新调整;

7)手车定位不到位,应调整定位装置或行程开关;

8)机构储能不到位,应调整储能机构。

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  1. CONNECT:[ UseTime:0.005719s ] mysql:host=127.0.0.1;port=3306;dbname=a_sjds;charset=utf8mb4
  2. SHOW FULL COLUMNS FROM `fenlei` [ RunTime:0.001319s ]
  3. SELECT * FROM `fenlei` WHERE `fid` = 0 [ RunTime:0.000621s ]
  4. SELECT * FROM `fenlei` WHERE `fid` = 63 [ RunTime:0.000752s ]
  5. SHOW FULL COLUMNS FROM `set` [ RunTime:0.000977s ]
  6. SELECT * FROM `set` [ RunTime:0.000463s ]
  7. SHOW FULL COLUMNS FROM `article` [ RunTime:0.004003s ]
  8. SELECT * FROM `article` WHERE `id` = 488531 LIMIT 1 [ RunTime:0.000748s ]
  9. UPDATE `article` SET `lasttime` = 1775656354 WHERE `id` = 488531 [ RunTime:0.010964s ]
  10. SELECT * FROM `fenlei` WHERE `id` = 66 LIMIT 1 [ RunTime:0.000431s ]
  11. SELECT * FROM `article` WHERE `id` < 488531 ORDER BY `id` DESC LIMIT 1 [ RunTime:0.001534s ]
  12. SELECT * FROM `article` WHERE `id` > 488531 ORDER BY `id` ASC LIMIT 1 [ RunTime:0.017878s ]
  13. SELECT * FROM `article` WHERE `id` < 488531 ORDER BY `id` DESC LIMIT 10 [ RunTime:0.001620s ]
  14. SELECT * FROM `article` WHERE `id` < 488531 ORDER BY `id` DESC LIMIT 10,10 [ RunTime:0.018732s ]
  15. SELECT * FROM `article` WHERE `id` < 488531 ORDER BY `id` DESC LIMIT 20,10 [ RunTime:0.096636s ]
0.882601s