S&C 2000 series, Инструкция по эксплуатации

Страница: 6 / 24

S&C ELECTRIC COMPANY
716-600
INSTRUCTION SHEET
Page 6 of 24
February 11, 2002
S&C Series 2000 Circuit-Switchers
Interrupter Replacement
Outdoor Transmission (69 kV through 230 kV)
Coupling End Indicator End
³⁄₈
—16 zinc-plated serrated hex nut
Clamps
Cable
INTERRUPTER REPLACEMENT ON MODELS 2020, 2025, AND 2030 — Continued
(d) Using a screwdriver as necessary to spread the edges,
snap the two halves together as shown in Figure 3.
Place a
³⁄₈
—16 zinc-plated serrated hex nut on each of
the captive
³⁄₈
—16
³⁄₄
carriage bolts that run the
length of the container-halves.
(e) Attach the container-halves at the indicator end of the
interrupter using one of the cables furnished. See
Figure 3 (right). Thread the cable through adjacent
holes in the container-halves, as shown. Position the
cable around the indicator end casting, then thread the
cable through adjacent holes in the container-halves,
on the other side.
Do not attach clamps to the cable at
this time.
(f) Attach the container-halves at the coupling end of the
interrupter in a similar manner, using the other cable
furnished. See Figure 3 (left). Slide the container-
halves back or forth as necessary to allow the cable to
be threaded through the holes.
(g) Pull the cable taut at the indicator end of the inter-
rupter and attach two of the clamps furnished. See
Figure 3 (right). Securely tighten the clamp nuts.
(h) Pull the cable taut at the coupling end of the inter-
rupter and attach the other two clamps furnished. See
Figure 3 (left). Securely tighten the clamp nuts.
(i) Securely tighten the
³⁄₈
—16 zinc-plated serrated hex
nuts that run the length of the container-halves.
Step 3
For Model 2020 and Model 2025 Circuit-Switchers:
Remove the high-voltage conductor from the upper
terminal pad.
For Model 2030 Circuit-Switchers:
Remove the high-voltage conductors from the upper and
lower terminal pads. Then remove the three
¹⁄₂
—13 1
¹⁄₄
hex-head stainless-steel cap screws and Belleville washers
which are used to attach the upper terminal pad to the
interrupter. Retain the upper terminal pad for re-use in
Step 12. Now attach the spare interrupter lifting bracket,
furnished with the replacement interrupter (in a separate
box), using the hardware just removed. See Figure 4.
Securely tighten the cap screws.
Figure 3. Attaching spare interrupter container on interrupter being replaced. Model 2030 Circuit-Switcher illustrated; Models
2020 and 2025 are similar. Model 2010, 2015, and 2040 interrupter is horizontal.