Related Manuals for Southern States EC-1
Summary of Contents for Southern States EC-1
- Page 1 TYPE EC-1 Aluminum Center Side Break Disconnect Switch For 38 – 362 kV Ratings INSTALLATION & INSTRUCTION MANUAL...
- Page 2 Page II The Quality Name in High Voltage Switching...
- Page 3 If you do not understand any part of these instructions or need assistance, contact Southern States Service Division at 770-946-4562 during normal business hours (EST) or 770-946-4565 after normal business hours.
- Page 4 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.
- Page 5 Page V The Quality Name in High Voltage Switching Southern States, LLC Equipment Receipt, Installation, Use, Operation and Maintenance Terms (“Terms of Use”)
- Page 6 Page VI The Quality Name in High Voltage Switching...
- Page 7 Page VII The Quality Name in High Voltage Switching Type EC-1...
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Page 8: Table Of Contents
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 ......................1 Summary ..........................1 Important ..........................1 Introduction ..........................2 Introduction .......................... -
Page 9: List Of Tables And Figures
Table 4: Recommended Installation and Maintenance Table ............. 26 Figures Page Figure 1: Typical EC-1 Switch Pole Assembled & Common Terminology ........4 Figure 2: Match-Marked Components (69kV bearing) ..............7 Figure 3: Match-Marked Components (69kV bearing) ..............8 Figure 4: Insulator Stack Alignment (72.5kV Bearing) ..............9 Figure 5: Insulator Stack Alignment (230kV Bearing) .............. -
Page 10: Summary & Introduction
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. -
Page 11: Introduction
Page 2 of 29 Summary & Introduction Introduction Southern States Type EC-1 is a three phase, group operated, center side break air disconnect switch constructed primarily of high strength aluminum. Applications for these switches included disconnecting and sectionalizing of lines, and isolating or bypassing other electrical equipment. Poles can be mounted in a horizontal “upright,”... -
Page 12: Ratings
Page 3 of 29 Summary & Introduction Ratings Table 1: Ratings Table RATINGS Maximum Voltage Rating (kV) 48.3 72.5 BIL (kV) 900/1050 1050/1300 ADDITIONAL RATINGS Rated Power Frequency 60 Hz 2000 A – Continuous Current 1200 A 4000 A 5000 A 3000 A Short-Time Symmetrical 38 kA RMS... -
Page 13: Product Description
I – Male Blade Assembly N – Locking Mechanism E – Jacking Bolts J – Contact Fingers O – Contact Bar Figure 1: Typical EC-1 Switch Pole Assembled & Common Terminology (Corona Rings are for 245kV and above and are not shown.) -
Page 14: Receiving, Handling & Storage
If damage or a shortage is noted, file a claim immediately with the carrier and contact the factory. Storage All components of the EC-1 aluminum center side break disconnect switch are suitable for outdoor use and do not have any special storage requirements. Keep bearings out of standing water. Keep upright and support live parts with base. -
Page 15: Installation & Adjustment Procedures
Contact your local representative or the factory if questions should arise. Southern States Service Department is available for field installation assistance along with providing parts support for all Southern States products. -
Page 16: Preferred Switch Assembly Method
Page 7 of 29 Installation & Adjustment Procedures Preferred Switch Assembly Method 1. If Disconnect switch is shipped assembled on insulators Skip this section and continue to next section (Error! No bookmark name given.). 2. Assemble the switch pole on the ground and hoist it to the structure as a complete unit. CAUTION: To prevent overturning during assembly, the switch base must be securely attached to a level, stable platform. - Page 17 Page 8 of 29 Installation & Adjustment Procedures Figure 3: Match-Marked Components (Extra Heavy Duty bearing) A = Inter-pole Arm B = Bearing Hub C = Bearing 1.1. Rotate the insulator to the closed position stop on the bearing. 1.2. Use a plumb bob or other straight line tool (e.g. laser level) to verify that the insulator is level.
- Page 18 Page 9 of 29 Installation & Adjustment Procedures Figure 4: Insulator Stack Alignment (Heavy Duty Bearing) Figure 5: Insulator Stack Alignment (Extra Heavy Duty Bearing) (A = Jacking Bolt, B = Jacking Nut, C = Adjustment Bolt)
- Page 19 Page 10 of 29 Installation & Adjustment Procedures 6.5. When installing insulators on high capacity bearings, the insulators require special attention to ensure good switch operation. It may be necessary that the insulators rotate about their axis uniformly; that is, they do not WOBBLE as they rotate. This may become important due to irregularities in insulator‘s mounting faces.
- Page 20 Page 11 of 29 Installation & Adjustment Procedures Figure 7a: Insulator Adjustment (1) Insulator rotates away • If insulator wobbles, leave it at the same position in previous step. Use the jacking screws, and tilt the insulator one-half the distance toward the reference point.
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Page 21: Live Part Installation & Contact Adjustment
Page 12 of 29 Installation & Adjustment Procedures Live Part Installation & Contact Adjustment 1. Rotate bearing slightly to open, mount the male and female blade assemblies on top of the insulators using the hardware indicated on the Unit Assembly drawing (see Table 2). Confirm that switch is oriented properly, per the unit assembly drawing. - Page 22 Page 13 of 29 Installation & Adjustment Procedures use the bolt hole tolerances to adjust the spacing. If a gap is still present (Figure 9), utilize the insulator stack adjusting bolts to adjust further (Refer to Figure 4 and Figure 5). Torque all bolts to the recommended value(s) shown in Table 2.
- Page 23 Page 14 of 29 Installation & Adjustment Procedures 9. Special adjustments have been built into 4000 & 5000 ampere switches. When assembled, CL of insulator and CL of rotating hinge shaft should be collinear (Figure 13). Blade closing can be adjusted by increasing or decreasing blade penetration, if needed. The following steps should be followed on both male and female blades: 8.1.
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Page 24: Mounting Disconnect Switch Onto The Structure
Page 15 of 29 Installation & Adjustment Procedures Mounting disconnect switch onto the structure 1. Recheck the Operating Mechanism drawing to confirm the correct position of the disconnect switch pole on the structure. 2. With the switch closed, secure the male and female blade assemblies using rope or other type of strap, to avoid movement during lifting. -
Page 25: Optional Accessories
Page 16 of 29 Installation & Adjustment Procedures Figure 16: Sling Attachment Optional Accessories 1. Seismic Blade Lock (if equipped): In the closed position the seismic blade lock hook should engage the locking post without touching it. There should be a ½” clearance between the locking hook and locking post. Refer to Figure 17. - Page 26 Page 17 of 29 Installation & Adjustment Procedures Figure 17: Seismic Blade Lock...
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Page 27: Operating Mechanism
Page 18 of 29 Installation & Adjustment Procedures Operating Mechanism (See Operating mechanism drawings provided for details) 1. Lay out all Operating Mechanism parts and check them against the Op-Mech drawing bill-of- material. 2. To ensure that the bearing stops do not interfere with switch adjustments, loosen all open/close bearing stops, and slide them out of the way. -
Page 28: Final Switch Adjustments (Tuning)
Page 19 of 29 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). The interphase pipe controls the individual operation of each switch pole, using a push/pull control. - Page 29 Page 20 of 29 2.2. Worm gear operator (SEGO – Safety Enhanced Gear Operator) (Optional) 2.2.1. The weight of the vertical operating pipe should be supported by pipe collar (Figure 20) by maintaining the ¼”-3/8” gap. 2.2.2. 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 30 Page 21 of 29 3. Preliminary Switch Settings: 3.1. Start with the disconnect switch and operating mechanism in the closed position. Refer to Figure 21. 3.1.1. The switch is in the fully closed position when the centerline of the male blade assembly is aligned with the centerline of the Female Blade Assembly.
- Page 31 Page 22 of 29 fully close. Minor adjustments of the inter-phase pipe clevises may be necessary for pole coordination. Figure 22: Switch – Fully Open Position (Top View) Recommended Minimum Distance Switch Rating (kV) between any metal parts 72.5 32” 245 (900) 245 / 362 (1050) 362 (1300)
- Page 32 Page 23 of 29 closed position, because this will help to prevent the disconnect switch from trying to open during a fault condition. Loosen Bolts for Adjustment Figure 23: Adjustable Arm Assembly 4.8. Final Check: 4.8.1. Once all final adjustments are complete, be sure that all nuts are tightened to their specified torque (Refer to 4.8.2.
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Page 33: Changing Disconnect Opening Direction
The following are instructions for making field modifications to the opening direction of the disconnect switch if it is determined that it is necessary. If parts or assistance are required please contact your Local Representative or Southern States Service Division, contact information provide on the back page. - Page 34 PULL to OPEN and vice versa. 3. Horizontally mounted disconnect switches with EVG-1 ground switch – PARTIAL DISASSEMBLY WILL BE REQUIRED. Please contact Local Representative or Southern States Service Division immediately. New brackets for the ground switch and a new main switch operator will be required to make this change.
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Page 35: Recommended Inspection Maintenance
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 36: Patrolling Inspection (6 Months)
Page 27 of 29 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. -
Page 37: Inspection Checklist
Page 28 of 29 Recommended Inspection Maintenance Inspection Checklist EC-1 TYPE DISCONNECT SWITCHES SUBSTATION NAME POSITION SITE REP: DATE: ACCEPTED BY QC: DATE: INSTALLER: SAP NUMBER: KV RATING: S.S. # AMP RATING: INSTALLATION PER SOUTHERN STATES MANUAL Installer Site Rep... - Page 38 Page 29 of 29 Recommended Inspection Maintenance Comments:...
- Page 40 30 Georgia Avenue Hampton, Georgia 30228 Phone: 770-946-4562 Fax: 770-946-8106 E-mail: support@southernstatesllc.com http://www.southernstatesllc.com ©2021 Southern States, LLC IB-136-EC-1 245-R7 02182021 Printed U.S.A.
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