Nà'anshì Pọ́dákítì

Àwọn Ẹ̀ka Pàtàkì

• Ó ń lọ́wọ́ ní àwọn èyí tí ó ní ẹ̀ka pàtàkì kekere tàbí ẹ̀ka pàtàkì dídùn, bíi high-voltage transformer circuits nínú generator plants, exciter/excitation transformer circuits nínú generator branch busbars, PT (potential transformer) circuits of generator branch busbars, àti outlet of substation feeders.
• Gẹ́gẹ́ bí àpẹẹrẹ, DDXK3 ń lọ́wọ́ nínú cabinet ní àtúnṣe pẹ̀lú circuit breaker (tabi load switch). Ní àwọn ẹ̀ka pàtàkì dídùn, circuit breaker tabi load switch yóò bẹ̀rẹ̀; nígbà tí ẹ̀ka pàtàkì dídùn wá, fuse pàtàkì tí DDXK3 ní ń ṣe iṣẹ́ dára láti mú àti dára ẹ̀ka pàtàkì, láti dára main equipment láti dára damage. Lẹ́yìn tí ẹni ẹni kan nínú fuse ṣe iṣẹ́, striker rẹ̀ ń pèsé linkage relay nígbà tí ó fi flexible linkage device, àti sì contact rẹ̀ ń pèsé three-phase tripping of the main circuit breaker tabi load switch láti dára non-full-phase operation. Triggering opening time náà ní enough margin láti dára pé main switch kò bẹ̀rẹ̀ títí di ìjà fún gbogbo fuses nínú two or three phases.

Àwọn ẹ̀ka pàtàkì

• Rated voltage: 7.2~12kV
• Rated current: 100~630A
• Breaking time: 3~5ms
• Current limiting coefficient: 15%~50%
• Rated short-circuit breaking current: 63~100kA

Àwọn ẹ̀ka pàtàkì

• Ó ń lọ́wọ́ fún fast short circuit protection of generators, plant high variables, àti generator branch buses, dára àti mú dídùn ẹ̀ka pàtàkì dídùn láti dára short circuit damage of generators and transformers;
• Ó ń lọ́wọ́ fún rapid disconnection of feeders prone to short circuit faults àti rapid isolation of fault points, láti dára bus voltage drop caused by the feeder short circuit fault, tí ó yóò mú large area of low-voltage tripping and power outages.