Installation (And Removal) Sequence - Siemens RL Series Instructions Manual

Installation
IMPORTANT:
11
Be certain that you check points
through below before placing circuit breaker in
compartment.
Installation ( and Removal) Sequence
I. Detem1ine the correct switchgear compartment for each
circuit breaker by checking the One-Line Diagram and
Schematic Diagram furnished
These drawings show the following for each circuit
breaker compartment:
a. Circuit breaker Type (RL-800, RL-1600 etc.)
b. Trip "XFMR" or "SENSOR" rating
c. Static Trip Type (RMS-TS-TZ, RMS-TIG-TZ etc.)
d. Type of operator (Manual Operator-MO or Electrical
Operator-EO)
e. Circuit Breaker wiring information.
f. Special accessories (Undervoltage
2. On fused breakers, make sure trigger fuse linkage is reset.
Breaker will remain trip free
tripped. Refer to 'Open F
3. If the circuit breaker was shipped separate from the
cubicle, remove any blocking, trip the circuit breaker
and move the racking
DISCONNECTED position.
4. To prepare circuit breaker for insertion into the cubicle,
follow steps A-D of Figure 1 on Page 5.
5. Hold the trip bar in. open the racking window, push
breaker to the DISCONNECT position. Then close the
racking window. The
movement of the breaker in the cell, unless trip bar is
6.
depressed.
While holding the trip bar in, open the racking window and
insert the racking crank.
7. Use crank to rack hrcakcr into the TEST position
cell.
8. Check door iris for free movement while closing door,
9. To remove circuit breaker, reverse the above
procedures.
10. After the circuit breaker is placed in the compartment,
rack it to the TEST position.
11. Open the compartment door. Close and trip the
circuit breaker. Refer to 'Operation', Pages
manually and electrically operated breakers.
During the closing operation. observe that the contacts move
f ree ly without interference or rubbing between movable
of
arcing contacts and parts
'Operation', Pages 6-10 for a detailed description of the
1a
with the drawings.
Trip, etc.)
20.
as as
long this linkage is
s e Trip Device' on
u Page
mechanism to the
position interlock prevents
of the
6-10
for
the arc chutes. Refer to
circuit breaker operating characteristics before placing the
circuit breaker in service. Make sure power circuits are not
energized, before testing.
12. Trip units and accessory devices should receive a
thorough check before placing the circuit breaker in
service. This check makes certain that adjustments
are proper and parts are not damaged. Refer to 'Static
Trip III Information and Instruction Guide', SG-3118.
13. Drawout circuit breakers are equipped with an interlock
to prevent movement of a closed circuit breaker into or
out of the CONNECT position.
i!lterlock operation should be checked before it is
energized. See 'Drawout Interlock', Page 9, and 'Spring
Discharge Interlock', Page
interlocks.
14. After completing the installation inspection, check the
control wiring (i f any) and test the insulation.
15. Close the compartment door. Rack the circuit breaker into
the CONNECTED position.
Mechanism', Page 9. Remove the racking crank and
close the racking window.
16. The circuit breaker can now be closed to energize the
circuit.
Hazardous voltages and high-speed moving
parts.
Will cause death� serious personal injury, and
property damage.
Always de-energ1ze and ground the
before
Read instruction manuals. obser-�e safety instruc­
tions. and limi� use
4
Circuit breaker
10,
for a description of these
Refer to 'Racking
A
DANGER
equipment
maintenance
quailfied
to personneL