Single-phase Step Voltage Regulators Cooper Power Series Voltage Regulators

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Voltage Regulators Catalog Data CA225001EN Effective February 2015 Supersedes 225-10 February 2014 COOPER POWER SERIES Single-phase step voltage regulators General Eaton's Cooper Power™ series VR-32 singlephase step voltage regulators are tap-changing autotransformers. They regulate distribution line voltages from 10% raise (boost) to 10% lower (buck) in thirty-two steps of approximately 5/8% each. Voltage ratings are available from 2400 volts (60 kV BIL) to 34,500 volts (200 kV BIL) for 60 Hz and 50 Hz systems. Internal potential winding taps and an external ratio correction transformer are provided on all ratings so that each regulator may be applied to more than one system voltage. Voltage is maintained within desired limits by controls that feature superior accuracy, reliability, and serviceability. Continuity of service is assured by rugged, service-proven tap-changers and coreand-coil assemblies functioning with the control. Eaton's Cooper Power series voltage regulators are available with a full complement of standard features for routine applications, as well as a full line of optional accessories for unique applications. In addition, the regulator offers desirable features that enhance operation and service. Smaller kVA sizes are supplied with support lugs for pole mounting and with substation or platform tie down provisions. Larger sizes are provided with substation bases with pad-mounting provisions. CA225001EN-1 Catalog Data CA225001EN Single-phase step voltage regulators Effective February 2015 MOV-Type Series Arrester Junction Box Bushing Connectors Threaded-Stud Bushing Terminals Bushings Hand-Hole Cover Internal Assembly Lifting Eyes Cover Upper Filter Press Connection Regulator Lifting Lugs Position Indicator Ball-Type Insulating Fluid Level Sight Gauge Shunt-Arrester Mounting Bosses Control Cable with QuickDisconnect Plug Laser-Etched Nameplates (2) (second nameplate on control enclosure door) Lockable Control Enclosure Control Tap-Changer Motor Capacitor Automatic Pressure-Relief Device (not shown) Bolt-Down Provisions (4) Pole-Mounting Bracket (Units up to 250 kVA.) (not shown) Substation Base (available in units 167 kVA and above) Ground Pad Control Ground Boss Figure 1. External features on the VR-32 voltage regulator. CA225001EN-2 www.eaton.com/cooperpowerseries Drain Valve and Insulating Fluid Sampling Device Catalog Data CA225001EN Single-phase step voltage regulators Effective February 2015 Standard features –– IEC 61850 A sealed-tank construction allows the use of 65 °C rise insulation system in 55 °C rise rated designs to provide an additional 12% capacity above the nameplate rating without loss of normal insulation life. Additional load capacity is stated on the nameplate, this ADD-AMP™ feature is available as long as the tap-changer’s maximum current rating is not exceeded. –– IEC 60870-5 –– 2179 –– MODBUS The unit construction cover suspends the internal assembly consisting of the core-and-coil assembly, tap-changer, and the reactor for ease of inspection and maintenance. All Eaton's Cooper Power series voltage regulators are manufactured and tested to the IEEE Std C57.15™-2009 standard. •• 8input/8output universal contacts •• 13.5 Vdc radio power supply •• 13A-Hr control power battery backup •• 48/125 Vdc substation battery power •• 240 V external source • CL-7 control Arresters • Tap changer with motor and power supply Series surge arresters • Position indicator with ADD-AMP adjustment • Two laser-etched nameplates • Lifting lugs • Oil drain valve and sampling device • Upper filter press connection All VR-32 voltage regulators are equipped with a bypass arrester connected across the series winding between the source (S) and load (L) bushings. This bypass arrester limits the voltage developed across the series winding during lightning strikes, switching surges and line faults. A MOV type series surge arrester of 3 kV offers series winding protection on all regulators except those rated 22 kV and above, which have a 6 kV MOV-type series surge arrester. • Oil sight gauge Shunt arresters • Mounting provisions for shunt arresters • High-creep bushings with clamp-type connectors • Bolt-down provisions (overhead units) • Pole-type mounting brackets (overhead units) • Substation base (substation units) • External series arrester A shunt arrester is a recommended accessory on the VR-32 voltage regulator for protection of the shunt winding. The shunt arrester is a direct connected arrester mounted on the tank and is connected between the load bushing and ground. For additional protection, a shunt arrester may also be installed between the source bushing and ground. It is recommended that arresters be applied to all nongrounded bushings. Shunt arrester application data is listed in Table 1. • Automatic pressure relief device • Handhole • Control cabinet with removable front panel • Ratio correction transformer • Conformally coated circuit boards Optional Accessories Table 1.  Shunt Arrester Application Data Regulator Voltage Rating 2500/4330Y Nominal System Voltages (volts) Delta or Single-phase Multi-grounded Wye 2400 2400/4160 2500 2500/4300 • Shunt arresters 4160 4160/7200 • Extra-length control cables 4330 4330/7500 • Elevating structure 4800/8320 • 4-hole NEMA® H-spades 4800 5000 5000/8660 • Cooling fans 6900 6900/11950 • Nameplates in alternate languages or metric units 7200 7200/12470 • Internal differential potential transformer for complete reverse power flow w/metering 7620 7620/13200 • CL-7 control accessories •• Multi-phase functionality 7970 7970/13800 •• Front panel overlays in alternate languages •• Serial communications interfaces: •• –– RS232 –– Fiber Optic - ST –– RS485 7620/13200Y 11000 11000 –– 6 10 15 13800 12470 15 13200 13800 13800/23900 14400/24940Y 14400/24940 19920/34500 18 Fiber Optic - LC, MTRJ, ST, and SC 19920/34500GrdY Copper - RJ45 22000 22000 27 33000 33000 36 Communications protocols: –– 3 12000 Ethernet communications interfaces: –– •• 5000/8660Y Recommended MOV Shunt Arrester Ratings (kV) 27 DNP www.eaton.com/cooperpowerseries CA225001EN-3 Catalog Data CA225001EN Single-phase step voltage regulators Effective February 2015 CL-7 control • Configurable data alarms Source-side voltage calculated from tap position • Event record Internal-external voltage source switch • Histograms • Automatic/manual control switch • Local data retrieval (USB Front Port) • Manual raise/lower toggle switch • USB data port Position indicator drag hand reset switch • Resident communications protocol (DNP 3.0 and IEC 61850) Supervisory ON-OFF switch (for use with SCADA) • CL-5D or CL-5E communications emulation Cell phone-style full numeric keypad • Programmable I/P (Using logical equations) • 4x20 character display • Alternate configuration settings • Multilingual display • Multi-phase operation • Three date formats Six-digit operations counter Construction • • Voltage test terminals • External voltage source terminals • Neutral indicating dual LEDS • Panel-mounted motor fuse • Metering-PLUS™ one-touch,grouped-data display feature • Tap-position tracking • Voltage limiting ("First House Protection") • Line drop compensation settings • SOFT-ADD-AMP feature with adaptive functionality • Duty Cycle Monitor (DCM) • TIME-ON-TAP™ tap position tracking feature • PMT™ Preventative Maintenance Tapping feature • Tap-to-Neutral With sealed-tank construction, the external oxygen supply is eliminated from the tank environment. With the use of a 65 °C rise insulation system and designs with a nameplate rating of 55 °C, an additional 12% capacity is available from Eaton's Cooper Power series 32-step regulator without any loss of insulation life. • Security override Quik-Drive™ tap-changers • Voltage reduction with three modes • Digital metering package (including instantaneous, demand and time-tagged demand) • Data profiler • Configurable status alarms The load tap-changer product offering from Eaton's Cooper Power series consists of three Quik-Drive™ tap-changers, the most advanced tap-changers in the industry. Each device is sized for a specific range of current and voltage applications and share many similarities in their construction. The primary benefits of Quik-Drive tap-changers are: direct motor drive for simplicity and reliability; highspeed tap selection for quicker serviceability; and proven mechanical life (one million operations). Common Quik-Drive tap-changer features include: neutral light switch; position indicator drive; safety switches; and logic switches (back-off switches). Quik-Drive load tapchangers meet IEEE® and IEC standards for mechanical, electrical and thermal performance. • • • • • Figure 2. CL-7 Control. CA225001EN-4 www.eaton.com/cooperpowerseries Core and coil assembly Ease of service is provided by the design of the core-and-coil, tap-changer, and reactor assembly. The entire assembly is cover suspended for ease of removal from the tank for inspection or maintenance. The coil assembly features an aluminum strip in the series winding that achieves the optimum in ampere turn balance for exceptional strength under through-fault conditions. Grain-oriented steel is used in the core, with a low reluctance lap joint. The rugged core clamp assembly secures the coil effectively and positions the core for the optimum in quiet operation and low core loss. Figure 3. QD3 Quik-Drive tap-changer Catalog Data CA225001EN Single-phase step voltage regulators Effective February 2015 Position indicator and ADD-AMP capability Exclusive to Eaton, the uniquely designed position indicator offers corrosion resistant materials, an oversized viewing area and a reset solenoid that is replaceable using a single thumbscrew. It is mounted on a junction box on the cover of the regulator, and is directly connected to the tap-changer by a flexible drive shaft passing through the junction box and terminal board via a sealing gland. The indicator face is graduated in steps, numbered 1 through 16 on each side of zero. Zero designates neutral. Drag hands indicate the maximum and minimum positions attained during raise and lower operations. The drag hands are reset around the position indicator hand by operating the drag hand reset switch on the control front panel. Figure 4. QD5 Quik-Drive tap-changer The ADD-AMP feature of VR-32 regulators allows increased current capacity by reducing the regulation range. This is accomplished by either setting limit switches in the position indicator (HARD-ADDAMP feature) or enabling the SOFT-ADD-AMP feature to prevent the tap-changer from traveling beyond a set position in either raise or lower directions. The limit switches have scales graduated in percent regulation, and are adjustable to specific values of 5, 6-1/4, 7-1/2, 8-3/4, and 10% regulation to alter the regulation range. The CL-7 control also allows for an Adaptive ADD-AMP feature which will automatically change the SOFT ADD-AMP setting based upon the current readings of the control. The five possible load current ratings associated with the reduced regulation ranges are summarized in Tables 4 and 5. At each setting, a detent stop provides positive adjustment. Settings other than those with stops are not recommended. The raise and lower limits need not be the same value except for locations where reverse power flow is possible. Figure 5. QD8 Quik-Drive tap-changer Figure 6. Position Indicator. www.eaton.com/cooperpowerseries CA225001EN-5 Catalog Data CA225001EN Single-phase step voltage regulators Effective February 2015 Table 2.  ADD-AMP Capabilities of 50 Hz Ratings Load Current Ratings (Amperes)1 Rated Volts 6600 11000 15000 22000 33000 Rated kVA 33 66 99 132 198 264 330 396 55 110 165 220 330 440 550 660 75 150 225 300 450 600 750 110 220 330 440 660 165 330 495 660 Regulation Range ±10%1 ±8 3/4% ±7 1/2% ±6 1/4% ±5% 50 100 150 200 300 400 500 600 50 100 150 200 300 400 500 600 50 100 150 200 300 400 500 50 100 150 200 300 50 100 150 200 55 110 165 220 330 440 550 660 55 110 165 220 330 440 550 660 55 110 165 220 330 440 550 55 110 165 220 330 55 110 165 220 60 120 180 240 360 480 600 668 60 120 180 240 360 480 600 668 60 120 180 240 360 480 600 60 120 180 240 360 60 120 180 240 68 135 203 270 405 540 668 668 68 135 203 270 405 540 668 668 68 135 203 270 405 540 668 68 135 203 270 405 68 135 203 270 80 160 240 320 480 640 668 668 80 160 240 320 480 640 668 668 80 160 240 320 480 640 668 80 160 240 320 480 80 160 240 320 1 Additional 12% increase in capacity is available due to the use of 65 °C winding rise insulation if the tap-changer’s maximum current rating has not been exceeded. For loading in excess of the above values please your Eaton representative. CA225001EN-6 www.eaton.com/cooperpowerseries Catalog Data CA225001EN Single-phase step voltage regulators Effective February 2015 Table 3.  ADD-AMP Capabilities of 60 Hz Ratings Rated Volts 2500 5000 7620 13800 14400 19920 34500 Rated kVA Load Current Ratings (Amperes)1 Regulation Range ±10% ±8 3/4% ±7 1/2% ±6 1/4% ±5% 25 50 75 100 125 167 250 333 416.3 25 50 100 125 167 250 333 416.3 38.1 57.2 100 200 300 400 500 668 1000 1332 1665 50 100 200 250 334 500 668 833 50 75 110 220 330 440 550 668 1000 1332 1665 55 110 220 275 367 550 668 833 55 83 120 240 360 480 600 668 1000 1332 1665 60 120 240 300 401 600 668 833 60 90 135 270 405 540 668 668 1000 1332 1665 68 135 270 336 451 668 668 833 68 101 160 320 480 640 668 668 1000 1332 1665 80 160 320 400 534 668 668 833 80 120 138 207 276 414 500 552 667 833 72 144 288 333 416 432 500 576 667 720 833 50 100 200 333 400 500 667 833 50 100 150 200 100 150 200 300 362 400 483 604 50 100 200 231 289 300 347 400 463 500 578 25.1 50.2 100.4 167 200.8 250 335 418 50 100 150 200 110 165 220 330 398 440 531 664 55 110 220 254 318 330 382 440 509 550 636 28 55 110 184 220 275 369 460 55 110 165 220 120 180 240 360 434 480 580 668 60 120 240 277 347 360 416 480 556 600 668 30 60 120 200 240 300 402 502 60 120 180 240 135 203 270 405 489 540 652 668 68 135 270 312 390 405 468 540 625 668 668 34 68 135 225 270 338 452 564 68 135 203 270 160 240 320 480 579 640 668 668 80 160 320 370 462 480 555 640 668 668 668 40 80 160 267 320 400 536 668 80 160 240 320 76.2 114.3 1672 2502 3332 416.32 5002 6672 8332 69 100 150 219/232 328/347 438/464 548/580 656/668 875 1093/1157 50 110 165 241/255 361/382 482/510 603/638 668 875 1093/1157 55 120 180 263/278 394/417 526/557 658/668 668 875 1093/1157 60 135 203 296/313 443/469 591/625 668 668 875 1093/1157 68 160 240 350/370 525/556 668 668 668 875 1093/1157 80 1 Additional 12% increase in capacity is available due to the use of 65 °C winding rise insulation if the tap-changer’s maximum current rating has not been exceeded. For loading in excess of the above values please contact your Eaton representative. 2 Regulators are capable of carrying current corresponding to rated kVA when operated at 7200 volts. www.eaton.com/cooperpowerseries CA225001EN-7 Catalog Data CA225001EN Single-phase step voltage regulators Effective February 2015 Eaton 1000 Eaton Boulevard Cleveland, OH 44122 United States Eaton.com Eaton’s Cooper Power Systems Division 2300 Badger Drive Waukesha, WI 53188 United States Eaton.com/cooperpowerseries © 2015 Eaton All Rights Reserved Printed in USA Publication No. CA225001EN CA225001EN-8 Eaton, Cooper Power, ADD-AMP, MeteringPLUS, PMT, TIME-ON-TAP, and Quik-Drive are valuable trademarks of Eaton in the U.S. and other countries. You are not permitted to use these trademarks without the prior written consent of Eaton. IEEE Std C57.15™-2009 standard is a trademark of the Institute of Electrical and Electronics Engineers, Inc., (IEEE). This publication is not endorsed or approved by the IEEE. IEEE® is a registered trademark of the Institute of Electrical and Electronics Engineers, Inc., (IEEE). NEMA® is a registered trademark of the National Electrical Manufacturers Association. For Eaton’s Cooper Power series step voltage regulator product information call 1-877-277-4636 or visit: www.eaton.com/cooperpowerseries.