Installation / Operation / Maintenance Instructions 21-115532-001 PR4018-06 JFR Distribution Step Voltage Regulator SUPERCEDES 21-115532-001 PR4018-05 October 08
TABLE OF CONTENTS Page INTRODUCTION Inspection for Damage in Shipment ................... 2 Storage Prior To Installation ............................. 2 Physical Considerations ................................... 3 Line Terminals and Connections ....................... 3 Electrical Considerations .................................. 3 Installation Diagrams........................................ 4 Protective Measures ........................................ 5 Control Connections .............................
INTRODUCTION Page 1 Type JFR single-phase step-voltage regulators are designed to give dependable service and to make installation, operation and maintenance as simple as possible. Technology advances, especially in the realm of the control apparatus, make it efficient to provide a separate instruction manual for the Accu/StatTM control provided with this JFR Regulator. For specific control information, refer to the Accu/StatTM control manual included with the regulator.
INTRODUCTION Page 2 INSPECTION FOR DAMAGE IN SHIPMENT STORAGE PRIOR TO INSTALLATION Check each item with the shipping manifest immediately upon receipt of the regulator. Make a thorough visual inspection of the regulator. Check for evidence of damage attributable to mishandling in shipment. Should any shortage or damage be found, notify the local agent of the carrier making the delivery and make appropriate notation on the freight bill.
INTRODUCTION Page 3 PHYSICAL CONSIDERATIONS • Handling. Type JFR regulators are designed to be lifted either by a forklift at the base or by use of lifting hooks on the side of each tank. Each JFR regulator is provided with either 2 or 4 lifting hooks on the side of each tank. The number of hooks has been established to provide a margin of safety. Use all supplied lifting hooks when lifting.
INTRODUCTION Page 4 INSTALLATION DIAGRAMS Open Delta Single Phase Connection of one single phase JFR regulator on single phase line. Closed Delta 4C) Connection of three JFR regulators in closed delta on three phase, ungrounded system. Connection of two single phase JFR regulators in open delta on a three phase, ungrounded line. Wye Connected Connection of three single phase JFR regulators in wye on a three phase, grounded neutral system.
INTRODUCTION Page 5 PROTECTIVE MEASURES Bypass Arrester. All JFR regulators are equipped with a properly sized arrester, connected externally between the 'S' and 'L' line terminals. The arrester is provided to protect the series winding of the regulator from line surges. By itself, the bypass arrester does not provide lightning protection for the regulator. Lightning Protection.
CONNECTION DIAGRAMS Page 6 STRAIGHT DESIGN (ANSI TYPE A) Wiring diagram of a typical Type “A” regulator showing both internal and external connections without fan power. SOURCE S L LOAD SL Schematic diagram of a typical Type “A” JFR regulator with fan power circuit U3-U5. Typical arrangement of windings and connections of Type “A” JFR regulators. Note: Other typical motor supply configurations below. Note: Straight design units may or may not be equiped with a balance winding.
CONNECTION DIAGRAMS Page 7 INVERTED DESIGN (ANSI TYPE B) S L SL Wiring diagram of a typical Type “B” regulator showing both internal and external connections. SOURCE S L LOAD SL Typical arrangement of windings and connections of Type “B” JFR regulators. Schematic diagram of a typical Type “B” JFR regulator utilizing single potential source for motor and control circuit. Note: Inverted design units may or may not be equiped with a balance winding. Refer to regulator nameplate.
CONNECTION DIAGRAMS Page 8 SERIES TRANSFORMER DESIGN S L SL Wiring diagram of a typical regulator with series transformer showing both internal and external connections. SOURCE S L LOAD SL Schematic diagram of a typical regulator with series transformer with fan power U3-U5. Typical arrangement of windings and connections of Series JFR regulators, without fan power. *Note: Exciting Winding may not be fully tapped. Refer to regulator nameplate.
PLACING THE REGULATOR IN SERVICE Page 9 The following checks will be useful in assuring the regulator is ready for use. The list cannot be all inclusive; careful attention on the part of a qualified operator remains imperative. Improper By-Pass operation will result in explosion and fire hazard. Will cause serious injury, death or equipment damage. BEFORE CONNECTING • Check oil level at oil sight window. If low, add sufficient oil (ASTM D-3487 Type II) to bring to desired level.
REMOVING THE REGULATOR FROM SERVICE Page 10 SWITCHING “OFF LINE” • Improper by-pass operation will result in explosion and fire hazard. Will cause serious injury, death or equipment damage. • Do NOT remove from service unless tap-changer is in neutral position AND control panel is properly disabled. • If the regulator being removed is in a closed delta bank, it is necessary to bypass and isolate all regulators in the bank. Improper By-Pass operation will result in explosion and fire hazard.
MAINTENANCE Page 11 GENERAL INSTRUCTIONS OPERATIONAL CHECKS This manual does not represent an exhaustive survey of maintenance steps necessary to ensure safe operation of the regulator. Particular applications may require further procedures. Should further information be desired or should particular problems arise which are not covered sufficiently for the purchaser’s purposes, the matter should be referred to the local Siemens sales representative.
MAINTENANCE Page 12 PERIODIC INSPECTION A sample of oil from the regulator should be subjected to dielectric breakdown test, per ASTM D-877. If found below 25kV, the oil should be changed or reconditioned. Refer to ANSI C57.106-2002. Other tests, especially Neutralization Number, Interfacial Tension and Power Factor are also useful and may be preferred by particular users. The oxidation inhibitor in the oil will be depleted over a period of a few years and should be replaced.
SPECIAL FEATURES POLARIZED DISCONNECT SWITCH (JACK PLUG) AND HINGED CONTROL PANEL The Accu/StatTM control panel is hinged and may be removed completely from the regulator control box by removing the wing nuts on the polarized jack plug and pulling the jack from its fixed position. This will automatically de-energize the control. It is not necessary to bypass or de-energize the regulator to remove the control.
SPECIAL FEATURES Page 14 OPERATION AT LESS THAN RATED VOLTAGE JFR regulators may be operated at less than the voltage for which they were designed. All system voltages for which control system taps have been provided are shown on the nameplate. When this is to be accomplished it may be necessary to reconnect particular leads at the upper 19-pin terminal block as illustrated on page 5.
SPECIAL FEATURES Page 15 FORCED AIR COOLING SUBBASE ASSEMBLY Certain regulators may be equipped for forced-air cooling and include fans mounted on the radiators. The fans are usually automatically controlled by means of the change in oil temperature (see Connection Diagram). The thermometer located in the top transformer oil contains two identical switches which control fan operation when fan control switch is in “Auto” position.
PARTS LIST Page 16 MAJOR COMPONENTS PARTS LIST Instructions For Ordering Part When ordering parts give the quantity of parts required, the regulator serial number, parts list item number, complete description, and method of shipping. State whether for emergency repair, maintenance, spare part, etc. All shipments will be made F.O.
PARTS LIST Page 17 TYPE TLG DIAL SWITCH Item 01-11 5320 5317A 5321 5322 5323 5324 5325 5326 5327 Description Panel Reversing Main Shaft Main Stationary Contacts Reversing Stationary Contact R Reversing Stationary Contact L Neutral Stationary Contact Collector Ring Collector Hub Reversing Switch Arm Item 01-11 5328A 5328B 5329 5330 5331 5332 5333 5334 5336 Description Reversing Switch Finger Assembly Reversing Switch Hub Finger Assembly Drive Arm Hub Finger Support Ring Finger Support Main Moving Fing
PARTS LIST Page 18 TYPE TLG QUICK BREAK MECHANISM Item 01-11 Description Item 01-11 5201G 5202 5207 5212 5213 5214 *5216A *5216B *5216C 5217 5229 5231 5233A 5234 5237 Mounting Frame Assembly Motor Drive Spring Assembly Latch Assembly Latch Spring (not shown) Latch Pin (not shown) Reversing Switch Drive Arm - Phenolic Reversing Switch Drive Arm - Phenolic Rev.
PARTS LIST Page 19 TYPE TLF DIAL SWITCH FIGURE 20A Item 01-11 5351 5352 5353 5354 5355 5356 5357 5358A 5359 5360A Description Panel Stationary Contact Neutral Stationary Contact Stationary Contact - LH Stationary Contact - RH Collector Ring Shaft Assembly Main Finger Assembly (each) Contact Finger Assembly Collector Ring Contact Finger Assembly Collector Hub Item 01-11 Description 5363 5364 5365 5366 5367 5368 5369 5370 5373 Drive Plate Contact Finger Assembly - Rev.
PARTS LIST Page 20 TYPE TLF QUICK BREAK MECHANISM Figure 21A Item 01-11 5233A 5243B 5251 5252 5256 5257 5259 5260 5262 5263 5264 5265 Description Counter Switch Assembly Neutral Switch Mounting Frame Motor Drive Spring Tube Drive Spring Spacer Notched Index Plate Latch Latch Spring Latch Pin Reversing Switch Drive Arm Item 01-11 Description 5266 5267 5275 5276 5278 5285 5286 5287 5288 5289 5290 5291 5600 Interlock Disc and Drive Sprocket Assembly Quick Break Mechanism Shaft Actuating Arm Assembly Spa
PARTS LIST Page 21 BYPASS ARRESTERS Item 01-11 Description Volts 5423 5425 Bypass Arrester Assembly 3 kV MOV Mounting Bracket Assembly 2,500, 5,000, 7,620 5423 5425 Bypass Arrester Assembly, 3 kV MOV 12,000-13,800-14,400 5428 5429 Bypass Arrester Assembly, 6 kV MOV Mounting Bracket Assembly Mounting Bracket Assembly 19,920 Include regulator serial number when ordering replacement parts Figure 22B Polymer arresters now used on voltage regulators. Supersedes previous porcelain arresters.
PARTS LIST Page 22 BUSHINGS Item 01-11 5400P 5400R 5400S 5401P 5401R 5401S 5410 5419 5411 5418 5426 5430 5427 4034 Description kVA Volts Bushing Assembly for 15 kV 50 5000 38.1 thru 76.2 7620 69 thru 138 13,800 Bushing Assembly for 15 kV 50 2500 100 5000 114.3 thru 167 7620 Bushing Assembly for 15 kV 75 2500 414 13,800 Bushing Porcelain for 15 kV 50 5000 38.1 thru 76.2 7620 69 thru 138 13,800 Bushing Porcelain for 15 kV 50 2500 100 5000 Bushing Porcelain for 15 kV 114.
PARTS LIST Page 23 BUSHINGS z Item 01-11 Description 5400T Bushing Assembly 15 kV 5400U 5400V Bushing Assembly, 15 kV Bushing Assembly, 23 kV 5400W Bushing Assembly 15 kV 5400X 5400Y Bushing Assembly, 23 kV Bushing Assembly, 23 kV 5400YY 5400Z 5400AB 5400AC 5401T Bushing Assembly, 15 kV Bushing Assembly, 23 kV Bushing Assembly, 23 kV Bushing Assembly, 15 kV Bushing Porcelain, 15 kV 5401U 5401V Bushing Porcelain, 15 kV Bushing Porcelain, 23 kV 5401W Bushing Porcelain, 15 kV 5401X 5401Y Bush
s Siemens Energy, Inc. P.O. Box 6289 Jackson, MS 39288-6289 Phone: 601-939-0550 Fax: 601-939-3606 ACCU/STAT, DATA/PAK, NEUTRALITE and VARIAMP are trademarks of Siemens Energy, Inc. PR4018-06 PR4018-05 PR4018-04 October 08 PRINTED IN U.S.A.
