2-4-11

A voltage tester should always be left hanging on a primary line in case it is forgotten which two phases go together. Select one: True False

False

Transmission digital phasing testers are available with ranges up to ? . Select one: a.57 kV b.75 kV c.570 kV d.750 kV

d.750 kV

If both circuits have voltage regulators, they will take care of the added or subtracted load when the disconnects are closed to tie the circuits together. Select one: True False

False

In order for the phasing meter to work properly, it is best to unreel all of the 15-kilovolt cable. Select one: True False

False

In the example given in the reference, a voltage regulator on Circuit 1 would step to its highest position as load flows into Circuit 2. Click on the image to view a larger version of it. Select one: True False

False

It is a guarantee that the phases will be the same if they back each other up across a double deadend. Select one: True False

False

Allowing a phasing meter 15-kilovolt lead to contact a ground while it is in use may cause the meter to give unreliable readings. Select one: True False

True

One reason to parallel circuits is so a lightly loaded circuit can share the load of a heavily loaded circuit. Select one: True False

True

Before closing disconnects to tie two circuits that phase together, the circuit should be checked to see if ? are online. Select one: a.capacitors b.lightning arresters c.transformers d.voltage regulators

d.voltage regulators

If Circuit 1 has 300 volts less than Circuit 2 at the connection point and the disconnects are closed, the load will be ? . Click on the image to view a larger version of it. Select one: a.added on Circuit 1 b.added to Circuit 2 c.out of phase d.reduced on Circuit 2

B. Added to circuit 2

Three reasons the voltage may be different at the connection point of two circuits that phase together include: load differences, line length differences, and ? . Select one: a.conductor size b.number of lightning arresters on the line c.pole construction type d.weather conditions

a.conductor size

A good way to see if the phase tester is working properly is to take a reading from ? . Select one: a.each phase to the neutral b.one phase to all other phases c.phase to phase on opposite sides of the double deadend d.phase to phase on the same side of the double deadend

a.each phase to the neutral

When phasing two circuits, the best voltage reading between the phases to be joined should be zero or ? . Select one: a.nearly this value b.the nominal phase-to-phase voltage of the line c.the phase-to-neutral voltage of the line d.up to 750 V, depending on the voltage regulator tap positions

a.nearly this value

Voltage regulators raise or lower the voltage to ? . Select one: a.a preset distance from the regulator b.a preset level c.the first customer from the substation d.the largest customer

b.a preset level

One instance when knowing how to phase a primary line is absolutely necessary is ? . Select one: a.after a load has been removed b.after major repairs c.before adding new load d.before applying lockout/tagout

b.after major repairs

The two things that need to be done before using phasing equipment are to ? and to check that the phasing equipment is working properly. Select one: a.advise all affected customers b.make sure the lines are energized c.recheck the lockout procedures d.unreel the entire 15kV cable from the phasing equipment

b.make sure the lines are energized

To see which phases go together, use the phasing sticks to go from ? until a reading of zero (or close to zero) is reached. Select one: a.each phase to the neutral b.one phase to all other phases c.phase to phase on opposite sides of the double deadend d.phase to phase on the same side of the double deadend

b.one phase to all other phases

The first step of the procedure to follow when phasing two circuits is to ? . Select one: a.trace both circuit conductors from the source to ensure they will phase together b.use a phase meter to take readings from each phase to neutral to test the instrument and ensure that both circuits are energized c.use a phase meter to test from one line to the opposite. If the reading is zero, they are the same phase d.use a phasing meter to measure the cross phase voltage on one circuit, then measure across the open to the phases of the opposite circuit

b.use a phase meter to take readings from each phase to neutral to test the instrument and ensure that both circuits are energized

Voltage regulators on a circuit that is to be tied with another circuit are normally ? . Select one: a.left as they are to raise or lower the voltage as needed b.left in the position they are in and locked out c.moved to the neutral position and locked out d.taken offline

c.moved to the neutral position and locked out

It is always a good idea to bring a difference in potential between phases to the attention of ? . Select one: a.the general contractor b.the job inspector c.the supervisor d.the utility being serviced

c.the supervisor