OKAY KE TU?? 🤪

What does NVAC stand for?

• No Voltage Automatic Changeover

• Non-Volatile Automatic Changeover

• Network Voltage Adjustment Control

• Normal Voltage Automatic Control

What is the primary function of the 750V DC Traction Network System?

• To control train signaling systems

• To manage energy storage systems

• To distribute AC power to stations

• To supply traction power to the LRV

What is the purpose of the inter-tripping scheme in the 132kV and 33kV systems?

• To disconnect faulty circuits quickly and reliably

• To increase the voltage of the system

• To connect multiple power sources

• To monitor the health of the equipment

Which of the following is NOT a component of the power transformer?

• Conservator

• Surge Arrestor

• Voltage Regulator

• Bushing

What happens when the No-Volt Automatic Changeover (NVAC) scheme is initiated?

• It automatically closes all circuit breakers

• It restores power supply immediately

• It disconnects all power sources

• It opens the related infeed circuit breakers

What is the function of the Blue Light System (BLS)?

• To control the operation of transformers

• To monitor voltage levels

• To de-energize traction power rail sections

• To provide emergency communication

Which of the following is NOT a major equipment in the PS&DS system?

• 132kV Gas Insulated Switchgear

• 750V DC Switchgear

• 
  High Voltage Transformer

• 33kV Remote Control Panel

What happens during a power failure on a single feeder of BSS1?

• The entire BSS1 system shuts down

• Only the affected feeder is de-energized

• The NVAC scheme is activated to switch power sources

• All downstream stations remain energized

What is the maximum voltage for the 750V traction power distribution network?

• 500V DC

• 
  750V DC

• 900V DC

• 1000V DC

Which equipment is used to provide 750V DC supply for LRV via Power Rail?

• 
  Low Voltage Distribution Board

• Rectifier

• Inverter

• AC Switchboard