Siemens 3AH Talimatlar, Kurulum, Çalıştırma, Bakım - Sayfa 15
Endüstriyel Ekipmanlar Siemens 3AH için çevrimiçi göz atın veya pdf Talimatlar, Kurulum, Çalıştırma, Bakım indirin. Siemens 3AH 33 sayfaları. Vacuum circuit breaker operator module
Ayrıca Siemens 3AH için: Kurulum Operasyon ve Bakım (20 sayfalar), Talimatlar Kılavuzu (38 sayfalar)
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Interrupter/Operator Description
Shock Absorber
Type 3AH circuit breakers are equipped with a sealed, oil-
filled, viscous damper, or shock absorber (61.8) Figure 6.
The purpose of this shock absorber is to limit overtravel
and rebound of the vacuum interrupter movable contacts
during the conclusion of an opening operation. The shock
absorber action affects only the end of an opening opera-
tion.
Auxiliary Switch
Figure 6 shows the breaker mounted auxiliary switch. This
switch provides auxiliary contacts for control of circuit
breaker closing and tripping functions. Contacts are avail-
able for use in relaying and external logic circuits. This
switch is driven by linkages connected to the jack shaft.
The auxiliary switch contains both 'b' (Normally Closed)
and 'a' (Normally Open) contacts. When the circuit breaker
is open, the 'b' switches are closed and the 'a' switches are
open.
Figure 10. Latch Details (shown charged)
Figure 11. Undervoltage Block/Operate Selection
Figure 12. Capacitor Trip Device
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