Section 8: Record keeping
Use the forms in this section for record keeping. Record the indicated reference information and initial time-current trip function
settings. If desired, make a copy of the form and attach it to the interior of the circuit breaker cell door or another visible location.
Figure 20
provides a place for recording test data and actual trip values.
Ideally, sheets of this type should be used and maintained by those personnel in the user’s organization that have the responsibility
for protection equipment.
Series NRX
TRIP FUNCTION SETTINGS
Circuit No./Address
______________________________
Breaker Shop Order Reference
______________________________
PER UNIT MULTIPLIERS
Rating Plug Amperes (
I
n
)
______________________________
I
r = Continuous Ampere Rating = LDS x
I
n
______________________________
Trip Function
Per Unit Setting
Multi
Ampere
Equivalent Setting
Time Delay
INST.
I
n
Long Delay
I
n
Sec.
Short Delay
Ir
Sec.
Ground Fault
I
n
Sec.
Date _____________________________
By _________________________________________________
Figure 19. Typical Trip Function Record Nameplate
Series NRX
AUTOMATIC TRIP OPERATION RECORD
Circuit No./Address
Breaker Shop Order Reference
Trip Function
Settings Reference
Orig. 0
Rev. 1
Rev. 2
Rev. 3
Instantaneous
Long Delay Setting
Long Delay Time
Short Setting
Short Time
Ground Fault Setting
Ground Fault Time
Date of Trip
Trip Mode Indicator
Setting Ref.
Setting
Change Made
Investigated By
Figure 20. Automatic Trip Operation Record
31
EATON
www.eaton.com
Effective September 2013
Instructional Leaflet IL01301064E
Operating Manual for Series NRX
Digitrip Trip Units 1150 / 1150i
