Aluminum double end break disconnect switch (34 pages)
Summary of Contents for Southern States EV
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Type EV Aluminum Vertical Break Disconnect Switch Volt: 500kV & Above Amp: All INSTALLATION & INSTRUCTION MANUAL...
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Page I The Quality Name in High Voltage Switching...
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The user takes full responsibility and warrants they have the expertise in handling this equipment and fully indemnifies Southern States LLC for any incidents related to the handling and installation of this equipment by the user, their employees, contractors or any other third parties.
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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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Equipment. • The Purchaser will, within seven (7) days after receipt of the Equipment, inspect the Equipment and identify and notify Southern States in writing of any missing parts, damage or defects observed in the Equipment.
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Southern States consent. • In the event that Southern States is found by a court of competent jurisdiction or a properly empaneled arbitral body to be liable to the Purchaser for any reason, Southern States shall be entitled to a reduction in the liability by taking into account the exceptions provided by statute, law, and any counterclaims Southern States may have against Purchaser.
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Page VI The Quality Name in High Voltage Switching Type EV Aluminum Vertical Break Disconnect Switch Volt: 500 and Above Amp: All...
Page VII The Quality Name in High Voltage Switching Table of Contents Table of Contents ............................... VII List of Tables and Figures ..........................VIII Summary & Introduction ............................1 Summary ................................1 Important ................................1 Introduction ................................ 1 Recommended Tools & Values ......................... 2 Product Description ...............................
Page VIII The Quality Name in High Voltage Switching List of Tables and Figures Tables Page Table 1: Recommended Tools and Torque Values ..................... 2 Table 2: Recommended Installation and Maintenance Table ................18 Figures Page Figure 1: Identification of Parts ..........................3 Figure 2: Switch Arm Detail ..........................
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.
Summary & Introduction Introduction The EV is a three insulator, vertical break switch that is opened and closed by rotation of the inside, hinge, insulator. The EV can be used for any conventional air break switch application, including disconnecting and sectionalizing lines and isolating or by-passing equipment. Upright mounted EV’s are equipped with arcing horns to protect the jaw contacts from pitting or metal...
Page 3 of 19 Product Description Product Description Typical Disconnect Switch Installation of this type switch consists of partial disassembly: • Removal of live parts from base • Mounting the insulators to the base Mounting the live parts to the insulators •...
Storage All components of the EV vertical break disconnect switch are suitable for outdoor use and do not have any special storage requirements. If a motor operator is furnished be sure to connect the heater circuit, using the provided external wiring, while the unit is in storage. Discard the wiring upon installation.
Page 5 of 19 Installation & Adjustment Procedures Installation & Adjustment Procedures Assembly 1. Preferred Switch Assembly Method 1.1. When convenient, but before opening the switch, screw the corona ball into the blade tip securely. 1.1.1. Place a few drops of LOCTITE, or equivalent, on the stem of the corona ball before attachment.
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Page 6 of 19 Installation & Adjustment Procedures 1.1.3. Make reference marks on the parts shown in Figure 3 to ensure correct reassembly. Figure 3: Reference Marks Location 1.2. Remove the jaw. Discard the steel channel shipping spacer, but retain the ½” circular spacer for later use.
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Page 7 of 19 Installation & Adjustment Procedures 1.3. With the switch fully open, carefully remove the hinge and yoke assembly as shown in Figure 5. Discard the steel channel shipping spacers. Figure 5: Live Parts Removal...
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Page 8 of 19 Installation & Adjustment Procedures 1.4. Place the base on a firm, level surface. It may be necessary to construct saw horses for this purpose. Additionally, the temporary mounting should be stable and well- anchored to prevent overturn of the switch. Figure 6: Insulator Mounting 1.4.1.
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Page 9 of 19 Installation & Adjustment Procedures 1.4.1.1. The best method to mount the end insulators is to remove the top nuts from the jack screws and remove the mounting adaptors. The adaptors can then be bolted directly to the bottom of the insulators without interference problems with a socket wrench.
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Page 10 of 19 Installation & Adjustment Procedures TIMESAVING TIP for mounting live parts when hardware must be placed between the insulator and the live parts: Use two studs of sufficient length to allow later removal (easily made by cutting the heads off two bolts) to align the parts.
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Page 11 of 19 Installation & Adjustment Procedures 1.5. Lift the hinge and yoke assembly to a convenient height using the same sling attachment shown in Figure 5 and mount the corona rings into the position shown in Figure 10. Note the geometry of these rings, the short end goes toward the open gap of the switch.
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Page 12 of 19 Installation & Adjustment Procedures 1.8. Mount the jaw. If the switch is equipped with a ground switch, discard the ½” spacer and mount the ground switch jaw. See Figure 12. Figure 12: Corona Ring 1.9. At this time, mount the switch on the structure. Before doing this, close the switch blade until it rotates into the jaw.
Page 13 of 19 Installation & Adjustment Procedures 2. Contact Adjustment 2.1. Upon closing, the switch should enter the jaw centrally with equal clearance on either side as shown in Figure 13. Additionally, the silver of the blade tip should be centered in the jaw contacts as shown in Figure 14.
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Page 14 of 19 Installation & Adjustment Procedures 1.5. The switch is fully closed and will have adequate contact pressure when the blade has rotated to within plus or minus 5° of a horizontal plane as shown in . However, Figure 15 an attempt should be made to get all blades to rotate to a completely horizontal position.
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Page 15 of 19 Installation & Adjustment Procedures 1.7. Most importantly, even contact must be maintained all along the silver of the blade tip with the silver of all the contact fingers. If even contact is not observed, loosen the bolts that mount the jaw to the insulators and shift the jaw assembly around until proper, even contact with all fingers firmly against the blade silver is achieved.
Page 16 of 19 Installation & Adjustment Procedures 3. Operating Mechanism Installation 3.1. Included with every switch is an Operating Mechanism Drawing (Op. Mech. Drawing). Study this drawing carefully, and with the switch closed, install the mounting brackets, bushings, manual gear box, vertical pipe*, adjustable crank arm, and reach rod. Be sure that the pipe collar above the vertical bearing supports the full weight of the vertical pipe.
Page 17 of 19 Installation & Adjustment Procedures 4. Operating Mechanism Adjustment 4.1. The adjustable arm should travel 180° from toggle closed to toggle open. Manually test operate. 4.2. If the switch does not fully open, the radius of the arm is too short. To correct: 4.2.1.
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 19 of 19 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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