Albat 2-2

Kilovolt-ampere being drawn off a transformer can be found by multiplying secondary voltage times secondary amperage and then dividing by _____.

1,000

Current unbalances should never exceed _____.

10%

When testing the batteries using the fluke PV350 pressure/vacuum transducer module if the DMM displays less than _____, the batteries need to be replaced.

100 mV

A transformer is rated at 7,200/12,470-120/240. If the secondary coils are parallel AC, BD, full amperage capacity is available at ____.

120 V

In a standard delta/why bank, the relationship between the two will be at a ____ displacement.

30 degrees

Most transformers rated at _____ and larger will have four secondary bushings.

75 kVA

The phase rotation is usually in a(n) _____ and _____ counter-clockwise direction.

ABC/CBA

General use test instruments commonly use standard ____ to represent a quantity or term for quick recognition.

Abbreviations

The Greek word _____, is the source of our word electricity.

Amber

A qualified electrical worker may use ____ to close in the door of a cutout.

An extended hot stick

The _____ on the end of a vector line indicates _____.

Arrowhead/direction

If two transformers are connected in parallel and a primary fuse blows on one of the transformers, the other transformer will ____.

Back-feed the one with the blown fuse

The voltage level that can flashover the outside of equipment, such as an insulator, is called the ____ level.

Basic impulse

______ is the logarithm of an electric, acoustic, or other power ratio.

Bel

An isolation link or current-limiting fuse, in an underground transformer, is _____.

Between the replaceable fuse and the primary coil

The initials CSP on a transformer mean _____.

Completely Self-Protected

A(n) ______ test is a test instrument that tests for a complete path for current to flow.

Continuity

A typical distribution transformer consists of a(n) _____.

Core and coil assembly

A(n) _____ in series with the cutout will reduce the risk of violent transformer failure.

Current limiting fuse

Three things to look for in a damaged transformer can are ____.

Damaged bushings, leaking oil, and a bulged tank

When using test instruments, the main reason for the increase in the use of digital electronic technology is ______.

Greater measuring capability

The four internal parts of a distribution transformer are primary windings, secondary windings, iron core, and _____.

Insulation

What are the four basic measurements?

Length, weight, temperature, and time

The length of a vector line is proportional to the ____.

Magnitude

Polarity tests should be performed on a transformer with a missing or damaged nameplate and the polarity _____.

Marked with a white dot near H1 and X1 on the transformer case

What meter is best for reading a load on a transformer when you do not know the peak times?

Maximeter

What tester is used to test for insulation breakdowns in a long circuit run?

Megohmmeter

The fluke i410/i1010 AC/DC current clamp recommends that the battery be removed and stored separately if not in use for how many days?

More than 60 days

To find the nominal voltage on the secondary phase-to-phase voltage you need to _____.

Multiply by 1.73

A transformer changes the voltage and current from one level to another because of the ____.

Number of turns in each coil

The strength of an electromagnetic field in a transformer is dependent on the ease of which the core is magnetized, the amount of current flowing, and the _____.

Number of turns in the winding

The maximeter hooks up ____.

On the secondary leads

The discoloring of paint on an overhead transformer may be sign of ____.

Overheating

Lockout/tagout is normally removed by the _____, other than in an emergency situation.

Person who installed it

Graphic illustrations using vectors can easily show the following transformer qualities, transformer output voltages have magnitude, direction, phase sequence, and ____.

Phase angle

The main advantage of a digital multimeter over an analog meter, besides being easier to read, is that ______.

Records measurements

A voltage indicator may not detect the presence of voltage in a wire that is ______.

Shielded

Medium- and large-size transformers use _____- type wire for a more compact and solidly built coil, which also provides better conductivity for the heat to flow out of the windings.

Square and rectangle

With the fluke i410/i1010 AC/DC current clamp, never hold the current clamp anywhere beyond the _____.

Tactile barrier

When using the fluke PV350, it is recommended that ____ ceiling tape, or its equivalent, be used to fit threads ensuring good seals between the PV350 and any hose or fittings.

Teflon

What type of tester uses a bulb connected to two test leads, where the bulb will light up when voltage is present?

Test light

When working on a CSP transformer, it is highly recommended that before work is performed on a de-energized secondary, _____.

The primary lead be taken off the line

The T-link fuse reduces nuisance fuse blowing due to _____.

Transience

A transformer equipped with taps changes the _____ of the secondary output.

Turns ratio

A competent craftsman, prior to physically constructing any bank, has the advantage and knowledge so that he or she can complete a(n) _____ and build to suit in a logical and proficient manner.

Vector drawing

With a CSP transformer, the primary fuse link _____.

Will not de-energize the primary lead from the transformer to the line

Using a combination of _____ and ____, vectors can be added, subtracted, multiply, and divded.

algebra/geometry

When done using the maximeter, the tap should be set for its _____ scale before putting it away.

highest

As the temperature drops below 30 degrees Celsius, a transformer kVA rating _____.

increase by 1% for each degree

To calculate phase-to-phase voltage, ____ the phase-to-ground voltage by the square root of three, which has a value of ____.

multiply/1.73