Test 4

Question 1

What is a main line?

Answer 1

A distribution line composed of either 3 phases and a neutral or just 3 phases.

Question 2

Tap line?

Answer 2

Lines going directly to customers fed from the main line.

Question 3

WYE system?

Answer 3

THREE phase line with a NEUTRAL

Question 4

Primary?

Answer 4

The high voltage portion of a distribution line.

Question 5

Secondary?

Answer 5

Is low voltage (120-480) and runs from PADMOUNT TO PEDESTAL

Question 6

Services?

Answer 6

Also low voltage like secondary but run from pole to CUSTOMER.

Question 7

Acceptable voltage range?

Answer 7

114-126 volts.

Question 8

Phase to neutral?

Answer 8

7200 x 1.76

Question 9

The majority of distribution poles are?

Answer 9

35-55ft high.

Question 10

Underground is how many times more expensive than overhead?

Answer 10

4 times.

Question 11

What material are insulators made of?

Answer 11

Porcelain or polymer.

Question 12

Pole mounted transformer?

Answer 12

A key element used to reduce the voltage to a level that can be used by customers.

Question 13

Designed to open all three phases but not break load?

Answer 13

Gangswitch

Question 14

Designed to break fault duty.

Answer 14

Recloser

Question 15

Used to connect inductive reactants?

Answer 15

Capacitors

Question 16

What contains a normal opener?

Answer 16

Loop design

Question 17

Connected together to form a low voltage grid network?

Answer 17

Network grid design.

Question 18

Distribution line

Answer 18

Must deliver power with quality and reliability <50 miles long.