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Southern States EV-2 Installation Instructions Manual

Aluminum vertical break disconnect switch, all ratings
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Type EV-2
Aluminum Vertical
Break Disconnect Switch
All Ratings
INSTALLATION &
INSTRUCTION
MANUAL

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Summary of Contents for Southern States EV-2

  • Page 1 Type EV-2 Aluminum Vertical Break Disconnect Switch All Ratings INSTALLATION & INSTRUCTION MANUAL...
  • Page 2 Page I The Quality Name in High Voltage Switching...
  • Page 3 Please ensure that you are using the latest installation and maintenance instructions. 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 (8:00am – 4:30pm EST, M-F) or 770-...
  • Page 4 The purchaser (“Purchaser”) of certain Equipment (the “Equipment”) identified in the Instruction Manual accompanying these Terms of Use sold by Southern States, LLC (“Southern States”), by Purchaser’s acceptance or Use of Equipment in any way, agrees to the Terms of Use set forth below (the word “Use” herein means receipt, testing, inspection, installation, operation, maintenance and otherwise handling the Equipment): •...
  • Page 5 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 6 Page V The Quality Name in High Voltage Switching...
  • Page 7 Page VI The Quality Name in High Voltage Switching Type EV-2 Aluminum Vertical Break Disconnect Switch All Ratings...

  • Page 8: Table Of Contents

    Page VII The Quality Name in High Voltage Switching Table of Contents Chapter Page Summary & Introduction ........................1 Important ............................1 Summary ............................1 Introduction ............................ 2 Recommended Tools & Values ...................... 3 Product Description ........................... 4 Typical Disconnect Switch ......................4 Receiving, Handling &...
  • Page 9 Table 2: Recommended Installation & Maintenance Table .............. 20 Figures Page Figure 1: Typical EV-2 disconnect switch & Common Terminology ........... 4 Figure 2: Match-Marked Components ....................6 Figure 3: Insulator Stack Alignment ....................7 Figure 4: Contact Blade Centered Among Contact Fingers ............... 8 Figure 5: Evenly Distributed Contact at All Points, on Both Sides ............

  • Page 10: Summary & Introduction

    Southern States Representative. The contents of this instruction manual should not become part of or modify any prior or existing agreement, commitment or relationship.

  • Page 11: Introduction

    The instructions contained within this manual are necessary for the safe installation, maintenance, and operation of the EV-2 switch. A qualified person, familiar with this of type equipment, should carefully read and follow the instructions.

  • Page 12: Recommended Tools & Values

    Page 3 of 21 Summary & Introduction Recommended Tools & Values Table 1: Recommended Tools & Torque Values Recommended Tools Recommended Torque Values Type Sizes Bolt/Nut size Torque (Ft-lb) Hand Wrenches and/or 15/16”, 3/4", 1/2” Sockets 5/8”, 9/16” Drill Bit 1/4”...

  • Page 13: Product Description

    Mounting the switch base to the structure • Installing operating components • Final adjustment or tuning is then completed. Figure 1: Typical EV-2 disconnect switch & Common Terminology A – Terminal Pad Assembly G – Blade M – Bearing B – Crank Arm H –...

  • Page 14: Receiving, Handling & Storage

    Storage All components of the EV-2 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.

  • Page 15: Installation & Adjustment Procedures

    Page 6 of 21 Installation & Adjustment Procedures Installation & Adjustment Procedures 1. Preferred Switch Assembly Method 1.1. If Disconnect Switch is shipped assembled on insulators, Skip 1 and continue to Section 2. 1.2. Switches rated 72.5 KV and above are normally shipped assembled separately from their insulators, with the live parts of each unit bolted to their own base.
  • Page 16 Page 7 of 21 Installation & Adjustment Procedures 1.6.1. Always be sure to tighten the bottom hex nuts securely after jackscrew adjustments are complete (Figure 3). 1.6.2. After making sure that the rotating insulator is perpendicular to the base, use the jackscrews on the rigid hinge insulator to line up the mounting holes (do not force the parts), and bolt the hinge assembly into position.

  • Page 17: Contact Adjustment

    Page 8 of 21 Installation & Adjustment Procedures 2. Contact Adjustment 2.1. There are five conditions that determine proper contact adjustment. All conditions must be checked after conductor attachment to both ends of the switch pole 2.1.1. The jaw contact leaves (fingers) must be centered on the silver of the blade tip as shown in Figure 4.
  • Page 18 Page 9 of 21 Installation & Adjustment Procedures 2.1.3. The blade tip must come down into the jaw in its center, without dragging on either side as shown in Figure 6. Use the jack screws that support the jaw insulator to tilt the insulator sideways, if necessary to ensure this condition.

  • Page 19: Optional Accessories

    Page 10 of 21 Installation & Adjustment Procedures 3. Optional Accessories Arcing Horns (if equipped): 3.1. 3.1.1. Refer to the Unit Assembly drawing for necessary hardware and installation location. 3.1.2. Arcing horns should rub lightly together with sufficient pressure to maintain contact, but not to cause binding.
  • Page 20 Figure 10: Proper Mounting Positions 4.6.1. Conventional blade open positions are shown in Figure 10. The EV-2 switch will be shipped with one of these blade open angles unless another angle is specified. Slight changes to the blade fully open angles are easily made in the field. Simply adjust the open position stop bolt on the blade carrier assembly shown in Figure 11, and then readjust the stop located at the bottom of the rotating insulator to match the blade angle.
  • Page 21 Page 12 of 21 Installation & Adjustment Procedures 4.7. GENERAL INSTALLATION NOTE: Live part stops (the blade open and closed position stop bolts located on the parts above the insulators) are correctly engaged when touching lightly. The over travel bearing stops at the bottom of the insulator are correctly adjusted when there is a 1/16”...

  • Page 22: Operating Mechanism

    14 shows alternate operating mechanism designs, each of which is employed as being the simplest arrangement for a given structure. In all cases, however, the operating principle remains the same, and the methods of installation and adjustment are virtually identical. Figure 13: Typical Operating Mechanism for EV-2 Figure 14: Alternate Operating Mechanism Designs...
  • Page 23 Page 14 of 21 Installation & Adjustment Procedures 5.3 Lay out all the operating mechanism parts and check them against the Operating Mechanism drawing bill-of-material. 5.4 To aid switch inspection from the ground, there will be at least one threader bolt (piercing bolt) on every Operating Mechanism.

  • Page 24: Switch Adjustments (Tuning)

    Page 15 of 21 Installation & Adjustment Procedures 6. Switch Adjustments (Tuning) 6.1. The operating mechanism is intended to fully open and fully close the disconnect switch by rotating the vertical operating pipe 180 o ± using an operator (manual or electrical). The interphase pipe controls the individual operation of each switch pole, using a push/pull control.
  • Page 25 Page 16 of 21 Installation & Adjustment Procedures 6.2.2. Worm gear operator (SEGO – Safety Enhanced Gear Operator) (Optional) 6.2.2.1. The weight of the vertical operating pipe should be supported by pipe collar by maintaining the ¼”-3/8” gap. 6.2.2.2. 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 26 Page 17 of 21 Installation & Adjustment Procedures Preliminary Switch Settings: 6.3. 6.3.1. Start with the disconnect switch and operating mechanism in the closed position. Refer Figure 18 6.3.2. Set the adjustable arm to the preliminary setting specified on the Operating Mechanism drawing, adjustment may be necessary to achieve proper operation.
  • Page 27 Page 18 of 21 Installation & Adjustment Procedures Figure 19: Adjustable Arm Assembly 6.4.4. If the switch is fully open before the operator reaches the fully open position, the adjustable arm radius is too long. To correct: 6.4.4.1. Check to see that nothing has slipped. 6.4.4.2.
  • Page 28 In these cases, the areas of adjustment are clearly identified in yellow below. Before making adjustments in these areas, please contact Southern States Field Service for assistance. Refer to Figures 20, 21, and 22 for examples of these critical factory adjustments.

  • Page 29: Recommended Inspection & Maintenance

    Recommended Inspection & Maintenance Recommended Inspection & Maintenance The EV-2 has been designed to operate with minimal maintenance. Periodic inspection is important for satisfactory operation. Frequency of inspection and maintenance depends on the installation site, weather and atmospheric conditions, experience of operating personnel and special operation requirements.

  • Page 30: Patrolling Inspection (6 Months)

    Page 21 of 21 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.
  • Page 32 30 Georgia Avenue Hampton, Georgia 30228 Phone: 770-946-4562 Fax: 770-946-8106 E-mail: support@southernstatesllc.com http://www.southernstatesllc.com ©2018 Southern States IB-101-EV2-R9 021518 Printed U.S.A.

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