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Installation & Adjustment Procedures
Arcing Horn Adjustment
Check to see that the blade makes contact against the stationary horn above the contact
shoes and maintains contact all the way down to the bottom of the blade stroke. The
stationary horn may be bent by hand until it makes contact as stated above.
1. With the switch bolted solidly to the structure, check to make sure that the single
pole opening is as specified in the single pole assembly drawing.
2. Check blades to be sure they contact squarely and smoothly. If they do not, refer
to
Preferred Switch Assembly Method:
3. After connecting the bus, all adjustments should be rechecked.
Operating Mechanism
Manual or Motor Operated
•
These switches are designed to be opened and closed as a three-phase unit by a
system of pipes that translates the rotational movement of an operator on the ground
(whether manual or motor) to simultaneous rotation of the end insulator of each
switch pole.
•
shows a typical operating mechanism for a 121 kV vertical break switch.
shows alternate operating mechanism designs, each of which is employed
as being the simplest arrangement for a given structure. In all cases, however, the
operating principle remains the same and the methods of installation and adjustment
are virtually identical.
Figure 7: Typical Operating Mechanism
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: ......