Siemens 21-115532-001 manual Physical Considerations

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INTRODUCTION

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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.

WARNING

Improper use of lifting provisions can cause death, serious injury, or equipment damage.

To prevent:

Do not use cover lifting eyes to lift complete unit. Cover lifting eyes are for untanking only.

•Location. Type JFR regulators are designed for outdoor installation. Any regulator may be platform or pedestal mounted. Regulators provided with hanger brackets are suitable for pole mounting. When the regulator is to be installed in a substation on a pedestal it is recom- mended that a minimum elevation to the live connection be established, as required by applicable codes.

Hazardous voltage present at the line terminals of the bushings on the cover of the regulator.

Will cause serious injury or death.

To prevent:

De-energize the regulator before servicing.

Elevation. When the regulator will be used at an elevation above 1000 meters (3300 feet) the kVA rating must be de- rated per ANSI C57.15 to assure operating temperature limits are not exceeded.

LINE TERMINALS AND

CONNECTIONS

Type JFR voltage regulators are routinely equipped with line bushing terminals per the following criteria.

Nameplate Line Current

Conductor Size Range

Rating

or Threaded Stud Size

50A to 300A

#2 to 477 MCM

301A to 668A

#2 to 800 MCM

669A to 1200A

1.125- 12 UNF-2A

1201 A to 2000A

1.500- 12 UNF-2A

Clamp type terminals for use through 668 ampere are capable of accepting an aluminum or copper conductor.

Tank grounding provision consists of a 0.5-13NC tapped hole in a steel pad for regulators rated to 300 amperes. Above 300 ampere ratings, a stainless steel pad with two 0.5-13NC tapped holes is provided.

ELECTRICAL CONSIDERATIONS

Type JFR regulators are commonly installed using any of four electrical configurations.

•One regulator in single-phase application. (Figure 4A)

•Three regulators in wye on a grounded-neutral three- phase system. (Figure 4D)

•Two regulators in open delta on a three-phase ungrounded system. (Figure 4B)

•Three regulators in closed delta on a three-phase ungrounded system. (Figure 4C)

Each of the four alternatives, when complete with switching provisions, will take the electrical configuration as shown on the next page.

The descriptions 'S', 'L', and 'SL' are embossed into the cover for user convenience at time of installation.

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Contents Instructions Page Table of Contents Page Qualified Person IntroductionIntroduction Physical Considerations Closed Delta Installation DiagramsControl Connections Protective MeasuresConnection Diagrams Inverted Design Ansi Type B Connection Diagrams Placing the Regulator in Service Removing the Regulator from Service General Instructions Operational Checks MaintenancePeriodic Inspection Special Features VARI-AMPTMRANGE and Current Ratings Available Operation AT Less than Rated VoltageForced AIR Cooling Subbase Assembly Major Components Parts List Parts ListType TLG Dial Switch Type TLG Quick Break Mechanism Type TLF Dial Switch Type TLF Quick Break Mechanism Bypass Arresters Bushings 5400W BushingsPR4018-06 PR4018-05 PR4018-04 October

21-115532-001 specifications

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