Caterpillar LEXX0526-03 Manuale Utente

LEXX0526-03  

 

3

 
 

Interlocks and Indicators 
Every CBTS Series Bypass-Isolation Transfer 
Switch is supplied with all necessary electrical 
and mechanical interlocks to prevent improper 
sequence of operation as well as the necessary 
interlocking circuit for engine starting integrity. 
 
Each CBTS is furnished with a detailed step by 
step operating instruction plate as well as the 
following function diagnostic lights: 
 
• Normal Source Available 
• Emergency Source Available 
• Bypass Switch in Normal Position 
• Bypass Switch in Emergency Position 
• Automatic Transfer Switch in Test Position 
• Automatic Transfer Switch Isolated 
• Automatic Transfer Switch Inhibit 
• Automatic Transfer Switch Operator 
  Disconnect Switch “Off” 
• Automatic Transfer Switch in Normal Position 
• Automatic Transfer Switch in Emergency 
  Position 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

 
 
CBTSD Series – Delayed Transition 
Transfer/Bypass-Isolation Switches 
The CTSD Delayed Transition Transfer Switch 
with a timed center-off position is available in a 
bypass configuration. The CBTSD Series Bypass 
incorporates the features of both the CBTS 
Bypass-Isolation Switch and the CTSD unit for 
transfer of large motor loads, transformers, 
UPS systems or load shedding to a neutral 
“Off” position. Reference the CTSD unit features 
and operation discussion for more details. 
 
CBTSCT Series – Closed Transition 
Transfer/Bypass-Isolation Switches 
The CTSCT Closed Transition Transfer Switch 
may be applied with a bypass-isolation switch 
for the utmost in reliability and versatility. 
The CBTSCT Series provides the ability to 
withdraw the transfer switch unit for maintenance 
or inspection. Reference the CTSCT unit features 
and operation discussion for more details.