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
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
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
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
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
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
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
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
