Manual Closing Procedure
The manual closing tool (shown in Figure 11) permits
manual closing of the main contacts of the VXE recloser
for test purposes, when a high-voltage source for closing
is not available. Minimum-trip current and operating
sequence can be tested in this manner. Refer to instruc-
tions covering
Manual Operation Of De-energized
Recloser
for closing procedure when using the manual
closing tool. The best procedure is to have one person
operate the closing tool while another regulates the trip-
ping circuit and observes test results.
Manual Operation of a De-energized
Recloser
The manual closing tool is only to be used for closing a
de-energized recloser.
The de-energized recloser is manually closed by raising
the yellow manual operating handle to the Closed posi-
tion and using the manual closing tool to rotate the main
operating shaft of the recloser mechanism 90 degrees.
Rotation of the main operating shaft must be completed
before the undervoltage lockout feature operates. Refer
to the
Undervoltage Lockout
section of this manual.
Use the following procedure for manual closing of a de-
energized recloser:
1.
Remove the pipe plug from the side of the recloser
head casting and insert the manual closing tool to
engage the main operating shaft.
2.
Raise the yellow operating handle to the CLOSED
position.
3.
Rotate the closing tool about 1/4 turn clockwise, to
close the recloser contacts. Avoid forcing the closing
tool beyond the mechanism stop: doing so may shear
the pin on the main operating shaft.
4.
A de-energized recloser can be tripped open by
pulling the yellow manual operating handle down to
the LOCKOUT position.
5.
Be sure to replace the pipe plug in the head casting
before placing the recloser in service.
High-Potential Insulation Level
Withstand Tests
High-potential withstand tests provide information on the
dielectric condition of the recloser. Testing is performed at
75% of the rated low-frequency withstand voltage.
Always use a suitable test cage and follow procedures
outlined in the
Testing: Safety Requirements
section of
this manual.
• For a VXE15 recloser, test at 37.5 kV rms.
• For a VXE27 recloser, test at 45.0 kV rms.
Closed-Contacts High-Potential Test
1.
Manually close the recloser contacts.
2.
Ground the recloser head casting and control.
3.
Apply the proper test voltage to the source-side
bushing.
4.
The recloser should withstand the test voltage for 60
seconds.
Type VXE Single-Phase Electronically Controlled Recloser Installation and Operation Instructions
16
Figure 11.
The manual closing tool is used to close a de-ener-
gized Type VXE recloser.
921124KM
WARNING:
Hazardous voltage. Never use a
manual closing tool to close an energized reclos-
er. Manually closing an energized recloser will result in
failure of the vacuum interrupter and can result in con-
tact with high voltage, which can cause death or severe
personal injury.
T236.0
!
IMPORTANT:
After each recloser trip, while the
closing solenoid plunger is moving downward, two
metallic clicks will be heard. The first click is the main
toggle latch resetting. The second click is the closing
solenoid contactor closing. As soon as these clicks are
heard, the closing tool can be turned to close the
recloser.
CAUTION:
Radiation. At voltages up to the
specified test voltages, the radiation emitted by
the vacuum interrupter is negligible. However, above
these voltages, radiation injurious to personnel can be
emitted. See
Service Information S280-90-1
,
Vacuum
Interrupter Withstand Test Voltage Ratings Information
,
for further information.
G109.2
!
