2-2-9
The red light on a CSP ? after the load decreases. Select one: a.blinks b.dims c.goes out d.stays on
D. Stays on
The secondary breaker of a CSP protects it from high voltage surges. Select one: True False
False
The emergency handle is sealed so it cannot be operated unless the seal is cut. Select one: True False
True
The primary fuse link of a CSP will operate at 8 to 14 times the normal current. Select one: True False
True
A broken signal light may be a source of ? . Select one: a.excessive secondary tripping b.radio noise c.reduced kVA capacity d.unnecessary voltage fluctuations
B radio noise
On a 25-kVA CSP carrying 180 amperes, the signal light will be energized after ? . Select one: a.2 hours b.3 hours c.6 hours d.8 hours
B. 3 hours
On a CSP transformer carrying 250 amperes that has tripped, using the emergency handle will give ? of power. Select one: a.3/4 hour b.1 1/4 hours c.1 1/2 hours d.2 hours
C. 1 1/2 hours
Once the emergency handle is used to restore service, the transformer will not have to be replaced as the emergency handle reset the transformer to a higher current value. Select one: True False
False
There is only one main breaker in a CSP transformer. Select one: True False
False
To close a CSP secondary breaker that has tripped, one must move the indicator to R and then back to ? . Select one: a.Clear b.Closed c.Normal d.Open
B. Closed
The primary link will remove a(n) ? faulted transformer from the system. Select one: a.externally b.ground c.internally d.secondary
C. Internally
The red light on a CSP comes on as the transformer ? . Select one: a.has tripped out due to overload b.is operating normally c.is reaching overload d.is shedding load
C. Is Reaching overload
The primary fuse in a CSP protects the ? from an internal fault. Select one: a.customer b.Qualified Electrical Worker c.system d.transformer
C. System
CSP transformers can be equipped with a ? to adjust the secondary voltage. Select one: a.breaker handle b.primary fuse link c.secondary breaker d.tap changer
D. Tap changer
A CSP will not carry the same amperage as a conventional transformer due to the additional internal equipment. Select one: True False
False
A CSP's primary lead should be taken offline before working on the secondary because the secondary might have enough capacitance to shock. Select one: True False
True
During a temporary overload, the signal light will come on but the transformer will remain in service. Select one: True False
True
The most commonly used CSP transformer in the electrical industry has two mounting brackets. Select one: True False
True
Under short circuit conditions, the red light and the secondary breaker will trip at the same time. Select one: True False
True
The emergency control handle on a CSP transformer should be used as a ? . Select one: a.method to permanently upgrade the transformer's capacity b.permanent fix to increased load c.temporary fix to a short circuit situation d.temporary fix to an overload situation
d.temporary fix to an overload situation
