installing transformers

Question 1

According to industry standards, all distribution transformers above 200 kVA and/or 8,600 volts are ?

Answer 1

subtractive

Question 2

In order for a single-phase transformer to produce any secondary voltage, the X2 grounding strap must be in place.

Answer 2

false

Question 3

A CSP transformer contains a(n) ? and a ? breaker.

Answer 3

internal hv fuse / secondary

Question 4

If a transformer nameplate shows 14,400/24,940 Y, it is suitable for a delta connection because it has full insulation ?

Answer 4

at the h2

Question 5

A transformer with reduced insulation at H2 must have H2 tied to the ?

Answer 5

systems neutral

Question 6

If the secondary voltage is listed on a transformer as 120/240 or 240/120, it makes no difference, as both internal secondary coils can be connected in parallel or series.

Answer 6

false

Question 7

Aluminum triplex itself can be inserted in the transformer lugs.

Answer 7

false

Question 8

A popsicle stick connector is a(n) ? terminal connector that is squeezed onto the end of the wire and inserted into the secondary terminals of a transformer.

Answer 8

pin

Question 9

On a fully loaded 25 kVA transformer, the drop leads would normally be ? stranded copper.

Answer 9

2

Question 10

One factor that affects the mass that may be attached to a pole is the ?

Answer 10

class of pole

Question 11

While conducting a pre-installation check on a transformer, do not ? unless permission is granted by the employer.

Answer 11

remove the lid

Question 12

On a transformer with basket terminals, copper leads should be inserted from the ?

Answer 12

top

Question 13

If more than one popsicle stick connector is to be installed in a basket type transformer terminal, ? leads should be brought out to connect the services.

Answer 13

copper

Question 14

If a transformer was ordered 24,940 Grd Y/14,400, the transformer would have ? insulation at the H2 end.

Answer 14

reduced