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GE prolec VR-1 Installation, Operation And Maintenance Manual
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GE prolec VR-1 Installation, Operation And Maintenance Manual

Single-phase, step type regulators
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Installation, Operation and Maintenance
Manual for Type VR-1™ Single-Phase,
Step Type Regulators

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  • Page 1 Installation, Operation and Maintenance Manual for Type VR-1™ Single-Phase, Step Type Regulators...
  • Page 2 Type VR1™ Single-Phase, Step Type Regulators ATTENTION! Read and understand the information contained in this Instruction Manual before installing/operating/ maintaining your Prolec GE Voltage Regulator. The product covered by this manual must be installed, operated and maintained exclusively by specialized and qualified personnel.
  • Page 3 Type VR1™ Single-Phase, Step Type Regulators LETTER OF GUARANTEE Prolec GE USA, LLC guarantees the apparatus specified herein against any defect of Design, Construction, Material and Workmanship. By this Warranty, we undertake to repair or replace, as necessary, L.A.B. manufactures, all equipment...

  • Page 4: Table Of Contents

    GEH-7299A: Installation, Operation and Maintenance Manual for Type VR1™ Single-Phase, Step Type Regulators INDEX 1. INTRODUCTION .........................6 2. RECEIVING ..........................6 2.1 Shipping Damage ........................6 2.2 Storage ..........................6 2.3 Warranty ..........................6 3. INSTALLATION .........................6 3.1 Inspecting ..........................6 3.1.1 General ........................6 3.1.2 Sealed Tank Regulator ....................7 3.2 Checking Regulator Controls and Control Settings Prior to Energization ....8 3.3 Exciting the Regulator High Voltage Windings from an External Supply ......9 3.4 Mounting ..........................9...
  • Page 5 GEH-7299A: Installation, Operation and Maintenance Manual for Type VR1™ Single-Phase, Step Type Regulators FIGURES & TABLES Figure 1............................7 Figure 2............................9 Figure 3............................10 Figure 4............................10 Figure 5............................11 Figure 6............................13 Figure 7............................15 Figure 8............................17 Figure 9.

  • Page 6: Introduction

    If the regulator is not installed immediately, store in a clean, dry place. 2.3 Warranty Your Prolec GE VR-1 regulator warranty shall expire twelve (12) months from the date of energization or eighteen (18) months from date of shipment, whichever occurs first and provided written notice upon discovery of defect.

  • Page 7: Sealed Tank Regulator

    Note: The control cabinet is non-removable if the regulator is energized. The GE-2011 control and approved third party controls are designed to be removed from the cabinet for service. The current transformer (CT) shorting switch is mounted in the control cabinet and shorts the current transformer when closed.

  • Page 8: Checking Regulator Controls And Control Settings Prior To Energization

    Warning: Short circuit and ground the high voltage terminals of the regulator as a safeguard against dangerous voltage from accidental excitation of the high voltage windings. All VR-1 regulators equipped with a GE-2011 control are programmed at the factory with the following settings listed in the table below prior to shipment, unless otherwise specified by the customer: Table 1.

  • Page 9: Exciting The Regulator High Voltage Windings From An External Supply

    A kit is available for mounting the control cabinet at the base of the pole. For information, consult your Prolec GE representative or GE account manager. Regulators can be connected into a live circuit if suitable devices, as indicated in Fig. 5, are in the circuit. If they are not provided, de-energize the line before proceeding with the installation.

  • Page 10: Surge Protection

    GEH-7299A: Installation, Operation and Maintenance Manual for Type VR1™ Single-Phase, Step Type Regulators 3.5 Surge Protection Prolec distribution surge arresters (Figure 4.) should be mounted on the source and load side of the regulator to provide the clearance values listed in Table 1. The chart indicates the minimum suggested strike clearance from the line clamp of the arrester to the nearest ground metal.

  • Page 11: Three-Phase Connections

    GEH-7299A: Installation, Operation and Maintenance Manual for Type VR1™ Single-Phase, Step Type Regulators 3.6 Three-Phase Connections The line connections for three-phase operations are shown in Figure 4. Note the Type VR-1 regulator cannot be operated in Y connection with the bank-neutral isolated.

  • Page 12: Connecting Into Service

    2. Close load (SL) disconnect switch “D” first. 3. Close source (S) disconnect switch “B”. 4. GE-2011 Control Instructions (see GEH-7298 for detailed operation instructions): a. Place the power supply switch to INTERNAL (see Note 1, Fig. 6). b. Place the motor control switch to MANUAL.
  • Page 13 GEH-7299A: Installation, Operation and Maintenance Manual for Type VR1™ Single-Phase, Step Type Regulators Figure 6. Regulator Connections (6A & 6B) Notes: 1. The control power and Internal-Off-External, function (not shown) is located on the regulator control adapter panel. Refer to the control instruction book for location of the switches detailed in the placing into service and removing from service procedures.

  • Page 14: Test For Phase Sequence

    GEH-7299A: Installation, Operation and Maintenance Manual for Type VR1™ Single-Phase, Step Type Regulators Figure 6. Regulator Connections (6C & 6D) continued 3.12 Test for Phase Sequence For a known system of phase rotation, the regulators carrying the leading or lagging currents can be determined as shown in Figs.
  • Page 15 GEH-7299A: Installation, Operation and Maintenance Manual for Type VR1™ Single-Phase, Step Type Regulators For two regulators in an open delta system: 1. Connect the regulators for normal open delta operation. See Figure 6B. 2. Set the motor control switch to AUTO. 3.

  • Page 16: Voltage Regulator For Grounded-Y Circuits

    GEH-7299A: Installation, Operation and Maintenance Manual for Type VR1™ Single-Phase, Step Type Regulators 3.13 Voltage Regulator for Grounded-Y Circuits The step voltage regulator rated 19920/34500 volts is designed for use on 34500 grounded-Y circuits. This regulator is designed with two 150 kV BIL class line bushings (S and L). The neutral is brought to a 95 kV BIL bushing (SL). Regulators rated 14400/24940 volts are designed for use on either 14400 delta or 24940 grounded-Y circuits.

  • Page 17: Voltage Regulator Pt Ratio

    GEH-7299A: Installation, Operation and Maintenance Manual for Type VR1™ Single-Phase, Step Type Regulators When it becomes necessary to change potential transformer connections inside the tank, this can be accomplished by reaching through the handhole and changing the connection at the potential-transformer terminal board (see Fig. 8). The lead connection is of the quick-disconnect bayonet type, and reconnection can be easily made by pulling the lead off the terminal board terminal and pushing the lead receptacle onto...

  • Page 18: Load Pt Ratio Test

    GEH-7299A: Installation, Operation and Maintenance Manual for Type VR1™ Single-Phase, Step Type Regulators 3.15.2 Load PT Ratio Test Regulator must be de-energized and in the Neutral position prior to performing ratio test. Instructions are written for DTR Model 8510 single-phase tester (3-Phase TTR can also be used however, the test lead color will vary). •...

  • Page 19: Handhole Cover Removal

    GEH-7299A: Installation, Operation and Maintenance Manual for Type VR1™ Single-Phase, Step Type Regulators 3.16 Handhole Cover Removal Regulator must be de-energized prior to removing the handhole cover. Make sure the cover is dry and free of dirt or debris. • Release the internal pressure using the pull-ring on pressure relief device located on the position indicator support.
  • Page 20 GEH-7299A: Installation, Operation and Maintenance Manual for Type VR1™ Single-Phase, Step Type Regulators Figure 9. Nameplate - Step Voltage Regulator Type A prolec.energy/prolecge...

  • Page 21: Operation

    GEH-7299A: Installation, Operation and Maintenance Manual for Type VR1™ Single-Phase, Step Type Regulators 4. OPERATION 4.1 Control Interface Instructions Warning: High Voltage – Current Transformer circuitry. Do not disconnect the electrical connections inside the housing at the bottom of the position indicator unless the voltage regulator is de-energized.

  • Page 22: Load Bonus Feature

    Note: The regulator does not need to be de-energized when making regulation adjustments. To reset the drag hands on the load-bonus position indicator, press the drag-hand reset button on the drag- hand reset button on the lower left corner of the GE-2994 Adapter Panel. Drag hands will reset automatically. prolec.energy/prolecge...

  • Page 23: Removing The Indicator Dial Assembly

    GEH-7299A: Installation, Operation and Maintenance Manual for Type VR1™ Single-Phase, Step Type Regulators 1. Limit Switch Adjusting Knob (Lower) 2. Limit Switch Adjusting Knob (Raise) Figure 12. Load-Bonus Position Indicator 4.3 Removing the Indicator Dial Assembly Warning: Do not remove the indicator dial before deenergizing the regulator. With the regulator on Neutral, loosen the three screws and open the indicator-glass assembly.

  • Page 24: Untanking

    GEH-7299A: Installation, Operation and Maintenance Manual for Type VR1™ Single-Phase, Step Type Regulators 5.2 Untanking Warning: De-energize the regulator before untanking. Warning: To avoid possible injury, pull ring on pressure relief to equalize internal tank pressure before attempting to remove tank cover or handhole cover. To untank the regulator, proceed as follows: 1.

  • Page 25: Replacing The Internal Clamp Bushing

    GEH-7299A: Installation, Operation and Maintenance Manual for Type VR1™ Single-Phase, Step Type Regulators To operate the mechanism, move the power supply switch to the "OFF" position. This will automatically disconnect the internal power to the control. Then connect an external power source of 120 volts, 60 HZ to the VOLTAGE IN terminals and move the power supply switch to the EXTERNAL position.

  • Page 26: Contact Inspection

    GEH-7299A: Installation, Operation and Maintenance Manual for Type VR1™ Single-Phase, Step Type Regulators 5.4 Contact Inspection Table 7 is given as a guide for inspecting the contacts of the regulator based on minimum life. It should be used for the first inspection.
  • Page 27 GEH-7299A: Installation, Operation and Maintenance Manual for Type VR1™ Single-Phase, Step Type Regulators Table 7. Expected Minimum Number of Operations VOLTS LIFE INSPECT SWITCH SIZE 2500 1950000 1450000 5000 2000000 1500000 19920 2000000 1500000 114.3 7620 600000 450000 2500 1100000 840000 5000 2000000...

  • Page 28: Trouble Shooting

    GEH-7299A: Installation, Operation and Maintenance Manual for Type VR1™ Single-Phase, Step Type Regulators 6. TROUBLE SHOOTING 6.1 Control Interface Test Points Besides the general precautions to be taken when troubleshooting electrical apparatus, there are also the following precautions which are particular to the static control. Warning: 1.
  • Page 29 GEH-7299A: Installation, Operation and Maintenance Manual for Type VR1™ Single-Phase, Step Type Regulators Table 8. Trouble Shooting Chart Trouble Cause Remedy Check for control sensing voltage at the voltage test terminals on the front of the control panel with an AC voltmeter. If no voltage occurs at this point, either the external power supply switch or the circuit breaker is defective.
  • Page 30 GEH-7299A: Installation, Operation and Maintenance Manual for Type VR1™ Single-Phase, Step Type Regulators Trouble Cause Remedy If the sensing circuits are functioning properly, check for sticking relays. Replace Defective relays relays if they are defective. Place the line drop compensation On/Off switch to OFF. Check the balance point Defective of the sensing circuit.
  • Page 31 GEH-7299A: Installation, Operation and Maintenance Manual for Type VR1™ Single-Phase, Step Type Regulators Trouble Cause Remedy Place the Control Switch on the TEST position. Connect an AC voltmeter to the output test terminals. Adjust and check the desired bandwidth by rotating the Bandwidth knob on the control panel.
  • Page 32 GEH-7299A: Installation, Operation and Maintenance Manual for Type VR1™ Single-Phase, Step Type Regulators Trouble Cause Remedy Reverse the current transformer leads in the control cabinet by disconnecting Reversed leads NN24 and NN23 (at the terminal board) and reversing the connections. Regulator polarity in either bucks...
  • Page 33 GEH-7299A: Installation, Operation and Maintenance Manual for Type VR1™ Single-Phase, Step Type Regulators Without Resistor Mod NN-20 NN-21 NN-22 Selection Jumper NOTE: Nameplate Connection With Resistor Mod NN-20 NN-21 NN-22 0.75 Ohm 5 Watt Resistor Selection Jumper NOTE: Nameplate Connection Figure 15.

  • Page 34: Typical Diagrams

    GEH-7299A: Installation, Operation and Maintenance Manual for Type VR1™ Single-Phase, Step Type Regulators 6.2 Typical Diagrams Figure 16. Diagram - Control Interface prolec.energy/prolecge...
  • Page 35 GEH-7299A: Installation, Operation and Maintenance Manual for Type VR1™ Single-Phase, Step Type Regulators Figure 17. Diagram - Voltage Regulator prolec.energy/prolecge...
  • Page 36 GEH-7299A: Installation, Operation and Maintenance Manual for Type VR1™ Single-Phase, Step Type Regulators Figure 18. Diagram - Control Cabinet prolec.energy/prolecge...
  • Page 37 GEH-7299A: Installation, Operation and Maintenance Manual for Type VR1™ Single-Phase, Step Type Regulators Figure 19. Diagram - Position Indicator prolec.energy/prolecge...

  • Page 38: Parts List

    Type VR1™ Single-Phase, Step Type Regulators 7. PARTS LIST Provide your Prolec GE sales representative or your GE account manager with ALL of the following information: REGULATOR SERIAL NUMBER (found on the regulator nameplate) TYPE OF REGULATOR (All parts of this book are for type VR-1, single phase step voltage regulators of standard design.)
  • Page 39 GEH-7299A: Installation, Operation and Maintenance Manual for Type VR1™ Single-Phase, Step Type Regulators R2002 R2001 R2003 R2007A 2000 R2004 R2005 R2013 Control Cable R2006 Figure 21. Cover and Accessories 2010 Reference Figure No. Description 2000 High voltage bushing assembly complete R2001 Bushing porcelain Figure 20.
  • Page 40 GEH-7299A: Installation, Operation and Maintenance Manual for Type VR1™ Single-Phase, Step Type Regulators Figure 23. Type VR-1, Reactor Side Figure 24. Type VR-1, Mechanism Side with Control Cabinet Removed Figure No. Reference No. Description 23, 24 2014 Core 23, 24 2015 Coil 23, 24...
  • Page 41 GEH-7299A: Installation, Operation and Maintenance Manual for Type VR1™ Single-Phase, Step Type Regulators Figure 25. High-Current Switching Mechanism Figure 26. Mid-Current Switching Mechanism Figure 27. High-Current Switching Mechanism Figure 28. Mid-Current Switching Mechanism prolec.energy/prolecge...
  • Page 42 GEH-7299A: Installation, Operation and Maintenance Manual for Type VR1™ Single-Phase, Step Type Regulators Figure 29. Mid-Current Switching Mechanism Figure 30. High-Current Switching Mechanism prolec.energy/prolecge...
  • Page 43 GEH-7299A: Installation, Operation and Maintenance Manual for Type VR1™ Single-Phase, Step Type Regulators Unit and Cover Part References Figure No. Ref. No. Description 25, 26, 29, 30 R1903 Neutral Light Switch Assembly 25, 26, 27, 28, 29, 30 2026 Contact Panel Assembly 22, 27 R2027 Slip RIng Assembly...
  • Page 44 LOCATIONS MEXICO APODACA Blvd. Carlos Salinas de Gortari km. 9.25 Apodaca, NL 66600 MX +52 (81) 8030 2000 SHREVEPORT 7000 W Bert Kouns Industrial Loop Shreveport, LA 71129 +1 (318) 687 6600 WAUKESHA 400 S Prairie Ave. Waukesha, WI 53186 +1 (262) 547 0121 GOLDSBORO 2701 US Highway 117 South...

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