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TYPE CBL-T Copper Center Break “V” Disconnect Switch 15.5 – 72.5 kV, 1200A INSTALLATION & INSTRUCTION MANUAL...
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Page II The Quality Name in High Voltage Switching...
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Page III The Quality Name in High Voltage Switching Safety Information...
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The Quality Name in High Voltage Switching LIMITED WARRANTY Southern States, LLC (“SSLLC”) warrants only to the Warranty Holder (hereinafter defined as the “End User” or the “Immediate Purchaser”, as applicable, pursuant to the terms and conditions of this Limited Warranty as set forth below), that the Product identified below will, upon shipment, be free of defects in workmanship and material for the applicable Warranty Period.
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Page V The Quality Name in High Voltage Switching Southern States, LLC Equipment Receipt, Installation, Use, Operation and Maintenance Terms (“Terms of Use”)
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Page VI The Quality Name in High Voltage Switching...
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Page VII The Quality Name in High Voltage Switching Type CBL-T...
Page VIII The Quality Name in High Voltage Switching Table of Contents Chapter Page Table of Contents ........................... VIII List of Tables and Figures ........................ IX Summary & Introduction ........................6 Summary ............................6 Important ............................6 Introduction ............................ 7 Ratings ............................
The contents of this instruction manual should not become part of or modify any prior or existing agreement, commitment or relationship. The sales contract contains the entire obligations of Southern States. The Warranty contained in the contract between the parties is the sole warranty of Southern States. Any statements contained herein do not create new warranties or modify the existing warranty.
All switches, including 69kV, are normally shipped factory assembled with insulators, and fully adjusted. The CBL-T switch may be operated with either a manual operator (swing handle or worm gear) or a Southern States Type VM-1 Motor Operator The instructions contained within this manual are necessary for the safe installation, maintenance, and operation of the Type CBL-T switch.
Page 8 of 26 Summary & Introduction Ratings Table 1: Ratings Table RATINGS MAXIMUM VOLTAGE (kV) 15.5 48.3 72.5 BIL (kV) Rated Power Frequency 60 Hz Continuous Current 1200 A Short-Time Symmetrical Withstand (3 Sec.) 38 kA RMS Peak Withstand 99 kA -40°C to +50°C Standard Ambient Temperature Rating...
Bearings – The bearings on the CBL-T switch are stainless steel balls and races. They are rugged, maintenance freee, life time bearings. All ratings are supplied with insulator leveling bolts.
Receiving, Handling & Storage Receiving, Handling & Storage Unpacking The CBL-T switch consists of: Live parts – blades with hinges, terminal pads and contacts; base housing with mounting angles attached; insulators; interphase and control pipes with hardware; and outboard bearing and operator.
Page 12 of 26 Installation & Adjustment Procedures Preferred Switch Assembly Method: 1.3 When insulators are shipped installed on the switch and the switch has been adjusted at the factory, proceed to Mounting Switch on Structure 1. Set up bearing housing with clip angles installed at ground level. Make sure clip angles are level and secured so that the switch does not tip over when insulators are installed.
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Page 13 of 26 Installation & Adjustment Procedures 4. With male blade in closed position, adjust and level male blade plug to be centered over bearing housing. Use jacking bolts (Figure 3) to make these adjustments. Figure 3: Rotating Insulator Bearing Housing 5.
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Page 14 of 26 Installation & Adjustment Procedures Figure 4: Blades Shown Fully Open 7. Adjustment of contact pressure – Rotate the blade assemblies into the closed position. The pressure adjusting bolt should be left loose so as not to apply any pressure during this first closing position.
Page 15 of 26 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.
Page 16 of 26 Installation & Adjustment Procedures Figure 6: Optional Arcing Horn in Closed Position Operating Mechanism 1. Lay out all parts and check each one against the bill of materials on the Operating Mechanism Drawing (Op-Mech). 2. Use the Op-Mech Drawing to install mounting brackets, bearings, bushings, pipe clevises, manual operating device, Adjustable Arm, and other components - Figure 7 and Figure 8.
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Page 17 of 26 Installation & Adjustment Procedures Figure 7: Typical Operating Pipe Arrangement Figure 8: Typical Operating Arrangement 3. Tighten all setscrews to securely grip the pipe. Do not drive any screws through the pipe wall at this time.
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Page 18 of 26 Installation & Adjustment Procedures 4. If furnished with a Counterweight, refer to the Grounding switch Unit Assembly and Figure 9 for installation details. Figure 9: Counterweight Assembled 5. After mounting all operating mechanism components, use any convenient means to match-mark all clevis connections, Adjustable Arm, and manual operator attachments to check for slippage during trial operations.
Page 19 of 26 Installation & Adjustment Procedures Operating Mechanism Adjustment (Three Phase Installation) Position all Grounding Switch poles closed and all Disconnect Switch poles open. The Adjustable Arm setting on the Op-Mech Drawing is a calculated dimension. Adjust as required for exact setting. The Adjustable Arm radius is too short if the Grounding Switch does not open fully (Blade in horizontal position).
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Page 20 of 26 Installation & Adjustment Procedures • Re-tighten the Adjustable Arm and Clevis Clamping Bolts. • Test Operate. Re-adjust as necessary. All poles of the fully adjusted switch should close completely and operate together. Slight adjustment of the Hinge Assembly Clamping Bolts may be necessary to coordinate all three poles.
Page 22 of 26 Installation & Adjustment Procedures Final Switch Adjustments (Tuning) 1. The operating mechanism is intended to fully open and fully close the disconnect switch by rotating the vertical operating pipe about 180 using an operator (manual or electrical).
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Page 23 of 26 Installation & Adjustment Procedures 3.1. Worm gear operator (SEGO – Safety Enhanced Gear Operator) (Optional) 3.1.1. The weight of the vertical operating pipe should be supported by pipe collar by maintaining the 1/4”-3/8” gap. 3.1.2. When the switch is properly adjusted the operator handle should hang freely in both the open and closed positions to permit the use of the customer supplied padlock.
Page 24 of 26 General Instructions for Threaded Clevises General Instructions for Threaded Clevises When threaded clevises are specified, one is generally attached to the adjustable arm, and two more to the center phase switch arm (refer to the plan view of the operating mechanism drawing and the illustration below).
Recommended Inspection Maintenance Recommended Inspection Maintenance Southern States’ disconnect switches are designed to operate with minimum maintenance. While disconnecting switches are not readily serviced at frequent intervals, periodic inspection is important for satisfactory operation and maximized overall life. Frequency of inspection and maintenance depends on the installation site, weather, atmospheric conditions, experience of operating personnel, and any special operation requirements.
Page 26 of 26 Recommended Inspection Maintenance Patrolling Inspection (6 Months) The patrolling inspection is a largely visual inspection on an energized unit in service. The frequency of the inspection is determined by the local conditions and policies of the owner of the equipment. Inspect the insulators for breaks, cracks, burns, or cement deterioration.
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