問題一覧
1
If a fault occurs on a lateral, a recloser may delay closing for a specific amount of time to give a sectionalizer an opportunity to open
answer 1 recloser answer 2 sectionalizer
2
Capacitors
increase the overall efficiency of a distribution system, by increasing the amount of usable power that can be supplied to a consumer
3
Both subsurface transformers and pad mount transformers are used an underground distribution systems
True
4
A transformer is an electrical device that can change the value of
Voltage
5
A voltage regulator
Maintains distribution voltage within a specified range of values
6
sectionalizing is a process of isolating, a section of a distribution system, while maintaining service to the majority of customers in the system
true
7
In a typical distribution system, secondary voltage is supplied to a feeder by a substation bus
false
8
Capacitors can improve the efficiency of a distribution system
True
9
on a typical voltage regulator load indicates regulated voltage applied by the regulator to the distribution system
True
10
A surge arrestor
Provides a safe low path for excessive current flow to ground
11
Before any work is done on a capacitor, personnel should follow the proper procedures for discharging the capacitor
True
12
Primary distribution voltage is applied to a distribution line by a substation transformer
substation
13
In a loop distribution system, layout, the laterals taped off of a feeder can rejoin the feeder farther down the line
loop
14
A distribution system
Receives electricity, a transmission voltage. supplies, electricity to a consumer is generally considered to begin at a sub station.
15
Which type of distribution layout could be used to ensure that critical needs customers such as hospitals do not experience interruption of service
duplicate supply
16
If a fault occurs on a lateral, a circuit breaker may remain closed for a specific period of time to allow a fuse to open, isolating, faulted lateral
closed
17
Parts of a transformer
Primary windings, core, secondary windings
18
in a distribution transformer
The primary winding receives electricity at distribution voltage and induces of voltage in the secondary winding at a different value
19
Which of the following is typically used to interrupt the flow of electricity through a distribution line
circuit breaker and recloser
20
surge arrester’s provide a voltage flow path to ground
false