S&C 2000 Series Installation & Operation Manual
Circuit-switchers with vertical interrupters and side-break power-operated disconnect
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Also See for 2000 Series:
- Installation and operations (40 pages) ,
- Installation and operation manual (37 pages) ,
- Instruction sheet (35 pages)
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S&C Series 2000 Circuit-Switchers
Outdoor Transmission, 69 kV through 138 kV
Table of Contents
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August 5, 2024
© S&C Electric Company 1989-2024, all rights reserved
Installation and Operation
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Model 2020 - With Vertical Interrupters
and Side-Break Power-Operated Disconnect
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High-Speed Power Train
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Instruction Sheet 716-504
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Table of Contents
Related Manuals for S&C 2000 Series
Summary of Contents for S&C 2000 Series
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Page 1: Table Of Contents
S&C Series 2000 Circuit-Switchers Model 2020 — With Vertical Interrupters Outdoor Transmission, 69 kV through 138 kV and Side-Break Power-Operated Disconnect Installation and Operation Table of Contents Introduction Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -
Page 2: Introduction
Introduction Qualified Persons WARNING Only qualified persons knowledgeable in the installation, operation, and maintenance of overhead and underground electric distribution equipment, along with all associated hazards, may install, operate, and maintain the equipment covered by this publication . A qualified person is someone trained and competent in: ●... -
Page 3: Special Warranty Provisions
Introduction Special Warranty The standard warranty contained in the seller’s standard conditions of sale, as set forth in Price Sheet 150, applies to S&C Series 2000 Circuit-Switchers and associated options, Provisions except that the first paragraph of said warranty is replaced by the following: (1) General: The seller warrants to the purchaser for a period of five years from the date of shipment that the equipment delivered will be of the kind and quality specified in the contract description and will be free of defects of workmanship and material. -
Page 4: Safety Information
Safety Information Safety Information Understanding Several types of safety-alert messages may appear throughout this instruction sheet and on labels and tags attached to the product. Become familiar with these types of messages and Safety-Alert the importance of these various signal words: Messages DANGER “DANGER”... -
Page 5: Location Of Safety Labels
Safety Information Location of Safety Labels ÇCAUTION Transition box contains a stop bracket and spacer Ç CAUTION which must be removed during installation, in the manner described in the S&C instruction sheet Do not attempt to close furnished with this Circuit-Switcher. Failure to do so Circuit-Switcher using can result in damage to the Circuit-Switcher when manual trip lever. - Page 6 Safety Information Reorder Information for Safety Labels Location Safety Alert Message Description Part Number CAUTION Transition box contains a stop bracket and spacer . . . G-5807 ● CAUTION Remove the interrupter operating-rod holding bracket and spacer . . . G-5951 ●...
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Page 7: Safety Precautions
Safety Precautions DANGER Series 2000 Circuit-Switchers operate at high voltage . Failure to observe the precautions below will result in serious personal injury or death . Some of these precautions may differ from your company’s operating procedures and rules . Where a discrepancy exists, follow your company’s operating procedures and rules . -
Page 8: Shipping And Handling
Shipping and Handling Inspection Examine the shipment for damage as soon after receipt as possible, preferably before removal from the carrier’s conveyance. Check the bill of lading to make sure all shipping skids, crates, and containers listed are present. If there is visible loss and/or damage: Notify the delivering carrier immediately. -
Page 9: Storage
Shipping and Handling ● A high-speed base enclosing the high-speed power train ● The appropriate number of mounting pedestals: ○ A single pedestal is used for circuit-switchers rated 69 kV (with 48-inch [122-cm] phase spacing). ○ Two pedestals are used for circuit-switchers rated 69 kV (with 84-inch [213-cm] phase spacing), 115 kV and 138 kV ●... -
Page 10: Installation
Installation Pressure-relief device and LOW GAS PRESSURE indicator Interrupter Disconnect blade Insulating support column Disconnect power train Support brace SWITCH POSITION indicator High-speed base — contains Support arm interrupter power train Operator Operator support plate Figure 1 . A Model 202 Series 2000 Circuit-Switcher rating 138 kV . S&C Instruction Sheet 716-504... -
Page 11: Before Starting
Installation Before Starting WARNING Do not remove the containers from the interrupters Pole-unit or the plastic bubble wrap from the insulating support columns until the installation is complete . Equipment damage or personal injury may result . Support Interrupter NOTICE arms (inside container) -
Page 12: Installing The Mounting Pedestals And High-Speed Base
Installation Installing the Mounting Pedestals and High-Speed Base Two nuts and two flat washers provide Install each pedestal as follows: Pedestal leveling means Anchor bolts Install the lower set of anchor-bolt nuts and STEP 1 . flat washers onto the pre-installed anchor Concrete pad bolts. - Page 13 Installation Unbolt the high-speed base from the shipping skids and lift the high-speed base, with interrupters attached, atop the support arm gussets, as shown on the catalog drawing. Avoid sudden starts and stops. Verify the SWITCH POSITION indicator on the base is visible on the desired side (this is also the side on which the operator door will open.) On the 69-kV circuit-switchers with...
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Page 14: Installing The Switch Operator
Installation Examine the bottom of the high-speed base STEP 10 . where it comes in contact with the support arms. If necessary, install shims between Bolts the high-speed base and the support arms to compensate for any gaps greater than ⅛-inch Shims (if required) (3 mm) between the mating surfaces. - Page 15 Installation Wrap a lifting sling around the stored-energy STEP 2 . housing of the operator, as shown in Figure 9. Carefully raise the operator to the upright Stored-energy housing Packing position so it rests on its skid. CAUTION Do not remove the lifting sling around the stored-energy housing .
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Page 16: Installing The Disconnect Pole-Units
Installation Attach the operator support angle to the STEP 6 . appropriate mounting pedestal using two ⅝–11×14-inch hex-head galvanized steel cap screws, four flat washers, and two self-locking hex nuts. Refer to the catalog drawing for exact placement. See Figure 10 on page 15. Attach the operator support plate to the angle on the operator and the angle on the mounting pedestal using four ½–13×1½-inch... - Page 17 Installation Complete the following steps to install the disconnect pole-units: Insulating For 69-kV circuit-switchers with 48-inch STEP 1 . Support (122-cm) phase spacing: Level the support Column brace to the same elevation as the high-speed base. If necessary, loosen the cap screws used Eyebolts to attach the outboard pole-unit channel bases (not furnished)
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Page 18: Installing The Interrupters
Installation (f) Attach the pole-unit base to the high-speed base using the ½–12×1¾-inch hex-head galvanized steel cap screws, flat washers, Shipping bracket and self-locking hex nuts furnished. Lubri- cate the cap screws to facilitate tightening. (g) Attach the pole-unit channel base to the support brace using the ½–13×1½-inch hex-head galvanized steel cap screws, flat washers, and self-locking hex nuts... - Page 19 Installation Prepare the interrupter for attachment to its STEP 3 . insulating support column as follows: Operating rod in the Operating rod in the Shipping position fully Open position (a) Remove and discard the two #10–32 screws that connect the operating-rod holding bracket (marked with a black/ yellow-striped label) for shipment.
- Page 20 Installation (e) Lower the interrupter onto the transition box. One of the ½–13-inch stainless steel Insulated operating rod end links studs on the interrupter is longer than the other three to aid in aligning the inter- rupter with the transition box. (f) Reattach a ½-inch Belleville washer and a ½–12-inch stainless steel hex nut, retained from Step 1 on page 18, to each of the...
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Page 21: Connecting The Operator And Pole-Units To The
Installation Attach the upper terminal pad using three STEP 7 . End casting ½–13×1¼-inch hex-head stainless steel cap screws and Belleville washers. See Figure 20. Repeat Step 1 on page 18 through Step 7 for STEP 8 . the other two interrupters. Connecting the Operator and Pole- Units to the High-Speed Power Train Complete the following steps to connect operator and pole-units to the high-speed power train:... - Page 22 Installation Open the disconnect blade on each pole-unit. STEP 3 . When the disconnect-blade corona-ball contact Top View is clear of its jaw contact fingers as indicated in Figure 22 (top view), make sure the blade centerline has not shifted up or down by more than ¼-inch (6 mm), as measured to the center- line of the jaw contact.
- Page 23 Installation Close the disconnect blade on each pole-unit. STEP 4 . The disconnect-blade corona-ball contact must be centered on its jaw-contact fingers, and the blade must touch its stop as indicated in Figure 24. Connect the factory-adjusted interphase pipe assembly to the center pole-unit insu- lating support column drive lever using the ½-inch stainless steel pin, two galvanized steel spacers, and two stainless steel “X”...
- Page 24 Installation Attach the clevis end of the interphase drive STEP 5 . link to the longer arm of the bell-crank on the high-speed base using a ½-inch stainless steel pin and cotter pin furnished. See Figure 26. Connect the interphase drive to the switch STEP 6 .
- Page 25 Installation Check for proper blade closure at the center STEP 7 . pole-unit marked “Pole 2.” With a pull-out force of approximately 40 pounds applied at the position indicated in Figure 24 on page 23, the blade deflection should be no more than ½-inch (13 mm).
- Page 26 Installation Side access door for user’s external connections (to terminal blocks at bottom of enclosure) Manual TRIP lever TRIP and CLOSE pushbuttons POSITION INDICATING lamps (catalog number suffix “-M”) Non-reset electric Operation counter Instruction CHARGED and manual DISCHARGED holder indicators for stored- energy mechanism Access shutter Spare fuses...
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Page 27: Connecting Conductors
Installation Connecting Conductors DANGER Conductors must be de-energized and grounded in accordance with standard system operating practice . Failure to do so will result in serious injury or death . Complete the following steps to connect the conductors: Attach the high-voltage conductors to the STEP 1 . -
Page 28: Setting Up The Operator And Checkout
Installation Pry the container halves apart with a flat- STEP 4 . head screwdriver or other pry tool. One of the container halves can now be removed and discarded. Slotted holes are provided so a rope or lifting sling can be attached and the container safely lowered to the ground. - Page 29 Installation Remove the plate and cut out the necessary STEP 3 . opening. Apply the sealant furnished and replace the plate. Install the entrance fittings. Verify the entrance fittings are properly sealed to prevent water ingress. NOTICE Make sure the polarity of the control circuit is correct on dc-control voltage models .
- Page 30 Installation Perform final checkout as detailed below: STEP 5 . Operating rod Stop bracket NOTICE holding bracket Spacer Check the following . Failure to do so can result in damage to the circuit-switcher when operated . (a) At each transition box, make sure: ●...
- Page 31 Installation Replace the access cover on the side of each STEP 6 . transition box and securely tighten the asso- Interphase ciated 5⁄16–18×¾-inch hex-head stainless steel Adjustable Drive lever cap screws. locking rod (marked with Replace the bottom plates to the underside of STEP 7 .
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Page 32: Adjusting Auxiliary-Switch Contacts
Installation When the circuit-switcher is ready to be placed STEP 10 . in service, the motor and closing-circuit fuses can—at the user’s option—be replaced with the slugs furnished. S&C recommends this practice for increased reliability because low-voltage fuses can be damaged by the repeated inrush Relay current experienced during normal opening retaining... -
Page 33: Operation
Operation Understanding Trip-Free Operation The stored-energy mechanism has an instantaneous trip-free capability. If the Series 2000 Circuit-Switcher is closed into a fault sensed by the user-furnished relaying, the mechanism will immediately trip. To accomplish trip-free operation, the stored-energy mechanism uses two spring assemblies: one for closing and one for opening. -
Page 34: Manual Operation
Operation When the disconnect has closed, the closing latch will release, discharging the closing spring and closing the interrupters. The SWITCH POSITION indicator on the high-speed base will move to the Closed position. See Figure 41 on page 33. (The window will continue to show the CHARGED indicator. -
Page 35: Decoupling
Operation If operator control voltage is not available: The opening and closing springs can be charged and the disconnect opened using the manual charging handle. Figure 43. Manual operating To manually open the disconnect: shaft Open the access shutter and place the manual STEP 1 . -
Page 36: Understanding The Gas Pressure Indicator And Safety Relief Device
Operation Understanding the GAS PRESSURE Indicator and Safety Relief Device GAS PRESSURE Safety relief indicator device Series 2000 Circuit-Switchers have sealed interrupters containing gas under pressure. Loss of gas pressure may result in improper interrupting action. Low gas pressure is signaled by a red target in the GAS PRESSURE indi- cator at the upper terminal end of the interrupter. -
Page 37: Inspection Recommendations
Operation Inspection Recommendations To ensure the continued proper performance, Series 2000 Circuit-Switcher should be inspected in accordance with the S&C-recommended schedule and procedures contained in S&C Instruction Sheet 716-590. S&C Instruction Sheet 716-504...
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