Eaton COOPER POWER Series Manual
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Eaton COOPER POWER Series Manual

Eaton COOPER POWER Series Manual

Pad-mounted voltage regulator with quik-drive tap-changer installation, operation, and maintenance instructions
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Voltage Regulators
MN225014EN
Pad-mounted voltage regulator with Quik-Drive™ tap-changer
installation, operation, and maintenance instructions
Effective January 2016
Supersedes S225-10-10PSVR May 2004
COOPER POWER
SERIES

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Summary of Contents for Eaton COOPER POWER Series

  • Page 1 COOPER POWER Voltage Regulators SERIES Effective January 2016 MN225014EN Supersedes S225-10-10PSVR May 2004 Pad-mounted voltage regulator with Quik-Drive™ tap-changer installation, operation, and maintenance instructions...
  • Page 2 CONTENTS OF THIS DOCUMENT SHALL NOT BECOME PART OF OR MODIFY ANY CONTRACT BETWEEN THE PARTIES. In no event will Eaton be responsible to the purchaser or user in contract, in tort (including negligence), strict liability or other-wise for any special, indirect, incidental or consequential damage or loss whatsoever, including but not limited to...

  • Page 3: Table Of Contents

    Contents SAFETY INFORMATION Safety Information ................iv PRODUCT INFORMATION Introduction .

  • Page 4: Safety Information

    FOR LIFE FOR LIFE Eaton meets or exceeds all applicable industry standards relating to product safety in its Cooper Power™ series products. We actively promote safe practices in the use and maintenance of our products through our service literature, instructional training programs, and the continuous efforts of all Eaton employees involved in product design, manufacture, marketing, and service.

  • Page 5: Product Information

    Cooper Power™ series pad-mounted voltage regulator incorporating its Cooper Power series Quik-Drive™ tap- changer. Moving regulator shipped on pallets Regulators shipped on pallets may be lifted or moved using Read this manual first forklift trucks of proper capacity.

  • Page 6: Description

    IEC 610255-5 Quality standards ISO 9001 Certified Quality Management System Description Pad-mounted voltage regulators from Eaton operate to keep voltage levels within programmed limits to improve power quality and are compatible with SCADA and automation distribution systems. Figure 1. Quick connect/disconnect cable.

  • Page 7: Available Options

    Full metal barrier separating the Automatic pressure relief device two compartments Bolted oil tank cover Oil level gauge Parking stand (2) Tap-changer position indicator Lifting lugs (2) and junction box Bushing wells & inserts or Laser engraved 600 A terminations nameplates (2) 1"...

  • Page 8: Installation Instructions

    Installation instructions Check position indicator for damage. When cleaning the faceplate, do NOT use solvent or fuel. If the regulator has been stored for some time, test the Mounting the voltage regulator dielectric strength of the insulating fluid according to Tables 4 and 5.
  • Page 9 Single-phase pad-mounted regulator system WARNING connections Personal injury. For closed delta connected voltage regulators, when using a bypass module without a WARNING separate SL disconnect switch, all three regulators must be bypassed in order to de-energize any single voltage Hazardous Voltage. Connect the "S" bushing to regulator.
  • Page 10 Figure 3. Regulating a single phase circuit with a neu- Figure 4. Regulating a single phase circuit with a tral or any one phase of a wye connected 3-phase circuit neutral or any one phase of a wye connected 3-phase when using a bypass module.
  • Page 11 Figure 7. Regulating a three-phase, three-wire circuit with three regulators (closed delta) when not using bypass modules. Figure 8. Regulating a three-phase, four-wire circuit (wye) with a 3-in-1 voltage regulator. PAD-MOUNTED VOLTAGE REGULATOR WITH QUIK-DRIVE TAP-CHANGER INSTRUCTIONS MN225014EN...
  • Page 12 Figure 9. Regulating a three-phase, three-wire circuit using a 2-in-1 voltage regulator (open delta). Figure 10. Regulating a three-phase, three-wire circuit with a 3-in-1 regulator (closed delta). PAD-MOUNTED VOLTAGE REGULATOR WITH QUIK-DRIVE TAP-CHANGER INSTRUCTIONS MN225014EN...

  • Page 13: Nameplates

    When nameplate is placed on the regulator tank in the right-side calling Eaton for service or support-related issues, have the compartment. The other is placed on the control box door. catalog number and serial number from the nameplate for Nameplates provide information necessary for proper reference.
  • Page 14 THE INFORMATION ON THIS DOCUMENT WAS COOPER POWER SERIES ---- DESC: CREATED BY EATON. IT WAS DISCLOSED IN CONFIDENCE AND IS ONLY TO BE USED FOR Figure 12. Typical nameplate, 3-in-1 multi-phase, wye connected. THE PURPOSE IN WHICH IT WAS SUPPLIED.

  • Page 15: Placing Regulator Into Service

    Placing regulator into service DANGER Explosion Hazard. During bypass switching, the regulator must be in the neutral position. Prior to bypass switching: 1) The regulator must be placed in the neutral position; 2) Tap-changer operation must be disabled. If the regulator is not in the neutral position, part of the series winding will be shorted when the bypass switch is closed, resulting in high circulating current.
  • Page 16 Operational check and the switching operations Setting the manual (hard) limit switches procedure Refer to the Construction and operation: Position This procedure requires the use of a bypass switch and two Indicator and ADD-AMP Capability section of this manual disconnect switches as would be found in a bypass module. for a complete discussion of these features.
  • Page 17 Removal from service differential PT, measure the voltage between the V6 switch and ground. This voltage should be zero or millivolts. Also compare the source Determining neutral position voltage and load voltage by viewing FC 6 and Before removing from service, return the regulator to FC 7;...

  • Page 18: Construction And Operation

    Construction and operation Pressure Relief Device. A pressure-relief device vents at approximately 10 psig with a flow rate of 35 SCFM. Eaton pad-mounted voltage regulators are designed, Tank and Cover. The sealed-tank construction permits manufactured, and tested in accordance with IEEE Std operation at 65 °C AWR without increasing the oxidation...

  • Page 19: Position Indicator And Add-Amp Capability

    Position indicator and ADD-AMP capability When using the limit switches, a detent stop at each setting provides positive adjustment. Settings other than Regulators rated below 668 A include an ADD-AMP those stops are not recommended. The raise and lower feature which permits additional current-carrying capacity limits need not be the same value unless reverse power is at reduced voltage regulation range, as shown in Table 1, possible.

  • Page 20: Internal Construction And Wiring

    Internal construction and wiring This interlacing of the two coils lowers the interwinding leakage reactance to a very low value. The reactor is In order to access the internal voltage regulator apparatus completely isolated from ground by stand-off insulators and wiring, the cover must be removed. After removing since the reactor coil is at line voltage above ground.
  • Page 21 Source Load C2 C1 CONTROL ® Figure 16. Power circuit—series winding located on the source-side, ANSI Type B. Source Load C2 C1 CONTROL ® Figure 17. Power circuit—series winding located on the load-side, ANSI Type A. PAD-MOUNTED VOLTAGE REGULATOR WITH QUIK-DRIVE TAP-CHANGER INSTRUCTIONS MN225014EN...
  • Page 22 To operate a regulator on a system voltage other than its nominal rating, the appropriate selection must be made for Eaton's pad-mounted voltage regulators have provisions for the PT and RCT taps and the control must be programmed operation at system voltages other than the nominal rating, properly at Function Code (FC) 43 (System Line Voltage), as listed in Tables 7 and 8 (see Appendix).
  • Page 23 Table 3 provides the application information for the various CTs used on Eaton's regulators. These CTs provide 200 mA output for the rated CT primary current. The current developed by the CT is brought through the control cable and junction box, into the control box and terminates at the knife switch labeled C.

  • Page 24: Quik-Drive Tap-Changers

    Quik-Drive tap-changers Eaton offers three Quik-Drive tap-changer models (see Figures 19 through 21). Each device is sized for a specific range of current and voltage applications and share many similarities in their construction.
  • Page 25 Quik-Drive tap-changer mechanism A tap change is initiated by the control. After some rotation of the drive gear connected to the motor, a holding switch energizes the motor through a separate circuit until the indexing motion is completed. The indexing occurs very quickly.
  • Page 26 Contacts Operating sequence Several connection conditions are satisfied by the variety When the tap-changer is in the neutral position and the of contact structures. They are divided into arcing and non- control calls for a tap-change operation, the following events arcing.

  • Page 27: Maintenance

    Maintenance Table 4. Envirotemp™ FR3™ Fluid Characteristics (natural ester*) Used Periodic inspections Dielectric Strength (kV) Step voltage regulators are designed to provide many ASTM D1816 years of trouble-free operation. The usable life of a regulator is affected by application; periodic inspections are 2 mm gap ≥...

  • Page 28: Exterior Maintenance

    If the operations check does not complete successfully, WARNING review the troubleshooting section of this manual and refer to Service Information MN225003EN CL-7 Hazardous voltage. Severe injury, death, or damage to Voltage Regulator Control Installation, Operation, and equipment can result. Bypass the pad-mounted voltage Maintenance for more instructions.
  • Page 29 Bolt-on tank cover removal upstream source. Connect all bushings and terminals to ground before removing the cover. Pad-mounted voltage regulator tanks are factory-sealed to prevent ingress of ambient air and moisture. Do not open Open the tank by removing the tank cover as outlined under any precipitation conditions.
  • Page 30 Install a new bushing and gasket. Center the bushing Slide cabinet assembly away from tank. and gasket to obtain an effective seal. Install exterior bushing clamp and clamp hardware. Tighten clamp nuts Cabinet installation to a torque of 40-60 in-lbs. Reverse the removal procedure to re-install the cabinet.

  • Page 31: Spare Parts

    • Part number if known • Description of each part • Quantity of each part required Refer to the following Service Information documents for information on Eaton's tap-changer maintenance and replacement parts: • S225-12-1 (MN225031EN), QD3 Quik-Drive Voltage Regulator Tap-Changer Manual •...

  • Page 32: Troubleshooting

    For additional assistance, call the Voltage Regulator Support line at 866-975-7347 (calls from outside the U.S.:262-896- Using the manual Raise/Lower switch, place the 2591) or e-mail questions to RES-VRSupport@Eaton.com. regulator on the 3 Raise position. CAUTION Troubleshooting procedures and tests Equipment Damage.
  • Page 33 16 lower. This is normal and inherent in the design of the type B regulator. Questions about the described procedure may be directed to your Eaton representative. PAD-MOUNTED VOLTAGE REGULATOR WITH QUIK-DRIVE TAP-CHANGER INSTRUCTIONS MN225014EN...
  • Page 34 Voltage regulator potential transformer ratio test Voltage regulator dry-out procedure Purpose Purpose The purpose of this test is to verify proper potential The purpose of this procedure is to remove moisture transformer ratio. from the paper insulation, coil, and other components of a voltage regulator.
  • Page 35 Purpose voltage values may be obtained from the factory. The purpose of this test is to confirm operation of the Contact your Eaton representative for assistance. current transformer (CT) and voltage regulator control current measurement. Let the regulator set in this condition for approximately 24 hours.
  • Page 36 Remove the jumper from between the C2 and C3 terminals to the left of the V1 switch on the TB3 terminal board, on the back panel. See Figure 23. Place a milli-ampere meter between these terminals. See Figure 24. CAUTION Equipment Damage.
  • Page 37 Voltage regulator insulation resistance test Compare the reading with the baseline reading. When a lower reading is obtained, further testing Purpose and evaluation of the insulation is recommended. No The purpose of this procedure is to describe the proper further testing is indicated when the reading is the connections and procedure when performing an insulation same or higher than the baseline reading.
  • Page 38 10. Jog the RAISE/LOWER switch in the direction the capacitive (higher) voltage was observed. This should allow the tap-changer to free itself. Using the RAISE/ LOWER switch, run the tap-changer one or two steps. Inspect the position indicator to verify that the indicating pointer is directly over a tap position mark.

  • Page 39: Appendix

    Appendix Table 8. Pad-mounted Voltage Regulator Tap Connections Table 7. Pad-mounted Voltage Regulator Tap Connections and Voltage Levels (60 Hz) and Voltage Levels (50 Hz) Nominal Ratio-Adjusting Data Test Overall Ratio-Adjusting Data Nominal Test Overall Regulator Regulator Single Terminal Potential Single- Terminal Potential...

  • Page 40: Add-Amp Capabilities

    7200 V. **These table contain standard ADD-Amp ratings. Not all of the rating are avail- able for pad-mounted voltage regulators. Consult you Eaton representative for available ratings. † 55/65 °C rise rating on VR-32 voltage regulators gives an additional 12% 50.2...
  • Page 41 Table 11. Pad-mounted Voltage Regulator Ratings and Corresponding Bushing Terminations Voltage Class (Ph-Ph) (Ph-Gnd) Bushing Type (kV) (kV) (kV) (kV) Well 16.2 Well 36.6 21.1 Integral Loadbreak 14.4 Integral Loadbreak 26.3 15.2 Integral Loadbreak 36.6 21.1 Integral Deadbreak 26.3 15.2 Integral Deadbreak 36.6 21.1...

  • Page 42: Wiring Diagrams

    Figure 25. Typical internal wiring of voltage regulators with a QD3 tap-changer. PAD-MOUNTED VOLTAGE REGULATOR WITH QUIK-DRIVE TAP-CHANGER INSTRUCTIONS MN225014EN...
  • Page 43 Figure 26. Typical internal wiring of voltage regulators with QD5 and QD8 tap-changers. PAD-MOUNTED VOLTAGE REGULATOR WITH QUIK-DRIVE TAP-CHANGER INSTRUCTIONS MN225014EN...
  • Page 44 POS-2 (BLK) POS-5 (ORG) POS-8 (WHT) POS-6 (RED/BLK) POS-7 (BLK) POS-4 (LT BLU/BLK) POS-3 (BLK/WHT) POS-10 (GRN/BLK) POS-9 (BLU) GROUND (WHT) A (GRN) CC (GRN) A (WHT/BLK) CC (WHT/BLK) A (BLK) CC (BLK) A (RED) CC (RED) A (BLK/WHT) CC (BLK/WHT) A (LT BLU/BLK) CC (LT BLU/BLK) A (ORG)
  • Page 45 RS-1 (ORG/BLK) CC (ORG/BLK) CC (RED) CC (BLK) RLS-2 (BLU) JUNCTION BOX POSITION INDICATOR TERMINAL BOARD CC (WHT/BLK) (JBB) JBB-L (GRN/BLK) LOWER LIMIT SWITCH (LLS) CC (GRN/BLK) (RED) JBB-R (BLU) RAISE LIMIT CC (BLU/BLK) SWITCH (RLS) (GREEN) CC (BLU) LLS-2 (GRN/BLK) CC (BLK/WHT) POSITION JBB-G (WHT)
  • Page 46 CONTROL CABLE (CC) MOTOR B (BLU/BLK) CAPACITOR B (BLK/WHT) (NOTE 1) 10 (BLK) NOTES 1. LEAD 20 (WHT/BRN) CONNECTS V6-4 TO V7 INSTEAD OF VS TO V7 WHEN A DIFFERENTIAL PT IS UTILIZED. Figure 29. Standard back panel signal circuit. PAD-MOUNTED VOLTAGE REGULATOR WITH QUIK-DRIVE TAP-CHANGER INSTRUCTIONS MN225014EN...
  • Page 47 This page is intentionally left blank. PAD-MOUNTED VOLTAGE REGULATOR WITH QUIK-DRIVE TAP-CHANGER INSTRUCTIONS MN225014EN...
  • Page 48 Waukesha, WI 53188 Eaton.com/cooperpowerseries © 2016 Eaton All Rights Reserved Eaton is a registered trademark. For Eaton's Cooper Power series product Printed in USA information call 1-877-277-4636 or visit: Publication No. MN225014EN / January 2016 All trademarks are property www.eaton.com/cooperpowerseries.

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