WorksheetsProtection Quiz 1
Total questions: 10
Worksheet time: 5mins
Reason For Protecting The Power System
To protect power system
To ensure safety for consumer
To develop hand skill
To install power system devices
Reason For Protecting The Power System
make installation works become easier
Repairing works is unnecessary
minimize damage and repair cost
Number of fault in power system will be reduced
Reason For Protecting The Power System
Repairing works is unnecessary
make installation works become easier
to develop hand skill
to protect power system equipment
Define Reliability
Able to detect smallest changes
provide maximum protection at minimum cost
Responds to specific fault only
Device must function consistently when fault occur
Define sensitivity
detect even the smallest fault
will operate as fast as possible
Responds to specific fault only
easy to install, maintain and use
Choose method of extinguishing the arc in circuit breaker
High temperature method
High power method
High current method
High resistance method
Choose method of extinguishing the arc in circuit breaker
Low speed method
Low resistance method
Low voltage method
Low flow method
Choose the function of Fuse
splitting the arc
prevents an electrical object from receiving too much current
Eliminate the arc
Cooling the arc
Choose the function of Fuse
designed to melt and separate if over-current
lengthen the gap between live and neutral wire
Cooling the arc
Splitting the arc
Which of the below is NOT type of Fuse
HRC Fuse
Ohmic fuse
Cartridge fuse
Rewireable fuse
