General Description; Components; Indicators And Controls - Toshiba HCV-6KALU Instruction Manual

Vacuum contactor
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GENERAL DESCRIPTION

COMPONENTS

The Toshiba HCV-6KAU and HCV-6KALU
vacuum contactors described in this manual are
suitable for use on systems of 7.2kV – 720A –
7.2kA.
Arc interruption is accomplished inside sealed
vacuum interrupters mounted on track-resistant
insulators. Vacuum interrupters use low-surge
contact materials, which exhibit low current
chopping levels reducing switching over-voltage.
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6
Figure 1 – Contactor structure
Front view (Figure 1):
1. Insulating frame
2. Vacuum bottle
3. Insulating flange
4. Armature
5. Auxiliary switch
6. Stopper
7. Drive unit/Control circuit terminal block
Phone: 800.894.0412 - Fax: 888.723.4773 - Web: www.clrwtr.com - Email: info@clrwtr.com
INDICATORS PROVIDED
On-Off Indicator – Located on the front, right side
of the contactor.
OFF (Green) or ON (Red). When the indicator
reads OFF, the main contacts of the contactor
are open. When the indication is ON, the main
contacts are closed.
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2
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8
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Right side view (Figure 1):
8. Rotating shaft
9. Closing coil (inside)
10. Contact wear gauge
11. Flexible conductor/terminal
12. Fixed conductor/terminal
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Indicates if the contactor is
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