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Installation & Adjustment Procedures
Mounting Switch on Structure
1. Tie blades in closed position to prevent switch from opening while lifting.
2. Rigging used to lift the poles should be attached to the clip angles or bearing
housings.
Do not lift switch by attaching to the live parts.
Refer to the
Operating Mechanism Drawing for proper placement of switch on the structure.
3. Check mounting surface for unevenness. Switch bases will warp on uneven
surfaces. Use shims under base to level if necessary.
4.
Bolt bases solidly to structure.
Single Pole Adjustments
Be sure each single pole is properly adjusted before connecting the controls and operators.
1. With the switch bolted to the structure, check to make sure that the single-pole
opening is as specified in the single-pole sub-assembly drawing. If readjustment is
required, refer to Part 1, Item F.
2. Check blades entering contacts – be sure the center of the blade is in line with the
contact-shoe pins.
3. Check to see that the blade is horizontal in the contacts ± 3 degrees. Refer to
4. Full open and close positions of switch pole are determined by positions of bearing
stops. Allow 1/16-inch clearance on each stop. Refer to
Figure 6: Bearing Stops
5. Re-inspect the single pole operation after bus or cable is attached to the terminal pads.
Weight and possible side forces created by the bus or cable may require repeating
some of the adjustments.
Rigging used to lift the poles should be attached to the base! Lift poles onto
structure, making sure the pole is in the closed toggle position. It may be
desirable to tie the fork to the strut to ensure the blade does not come open
during lifting. Refer to the control arrangement drawing for proper placement
of switch poles.
Summary of Contents for CVB-2
Page 1: ...TYPE CVB 2 Vertical Break Disconnect Switch 15 5 245 kV 2000A INSTRUCTION INSTALLATION MANUAL ...
Page 2: ...Page II The Quality Name in High Voltage Switching ...
Page 3: ...Page III The Quality Name in High Voltage Switching Safety Information ...
Page 7: ...Page VII The Quality Name in High Voltage Switching Type CVB 2 ...
Page 31: ......