2-10 quiz

On a fully loaded 25 KVA transformer the drop leads would normally be __?__ stranded copper

#2

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

Copper

Aluminum triplex itself can be inserted in the transformer lugs (T/F)

False

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. (T/F)

False

In order for a single phase transformer to produce any secondary voltage the X2 grounding strap must be in place (T/F)

False

It is good practice to leave an extra length of copper or to curl primary risers from the transformer to the live line incase the lead breaks (T/F)

False

Osha has no requirements concerning how to hook up and lift a load (T/F)

False

Transformers on the loading dock can be relied on so checking the winding continuity of a transformer is not important (T/F)

False

One requirement of the 1996 Migratory Bird Treaty Act regarding new transformer installations to protect birds from electrocution is to __?__

Install bushing covers.

A CSP transformer contains a __?__ and a __?__ breaker

Internal HV fuse and secondary

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

Pin

If a transfomer was ordered 24940 Grd Y / 14400 the transformer would have __?__ insulation at the H2 end

Reduced

According to industry standards all distribution transformers above 200 KVA and or 8600 volts are

Subtractive

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

System neutral

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

Top

If a transformer nameplate shows 14400/24940 Y it is suitable for a delta connection because it has full insulation __?__

at the H2

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

class of the pole

Another requirement of the 1996 Migratory Bird Treaty Act regarding new transformer installations to protect birds from electrocution is to install __?__

insulated transformer leads

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

remove the lid

The proper way to hang a small distribution transformer when power equipment is not available is __?__

to use rope blocks, a pole jib, and a sling