Eaton Cutler-Hammer SPB Instructions Manual

Eaton Cutler-Hammer SPB Instructions Manual

Closed transition fixed mount transfer switch

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Cutler-Hammer
I.B. ATS-CP01
Instructions for Cutler-Hammer Closed Transition
Fixed Mount SPB Transfer Switch
Effective 5/98

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Summary of Contents for Eaton Cutler-Hammer SPB

  • Page 1 Cutler-Hammer I.B. ATS-CP01 Instructions for Cutler-Hammer Closed Transition Fixed Mount SPB Transfer Switch Effective 5/98...
  • Page 3 I.B. ATS-CP01 Page iii TRANSFER SWITCH EQUIPMENT COVERED BY WARNING THIS INSTRUCTION BOOK IS DESIGNED AND TEST- ED TO OPERATE WITHIN ITS NAMEPLATE RAT- INGS. OPERATION OUTSIDE OF THESE RATINGS MAY CAUSE THE EQUIPMENT TO FAIL RESULTING READ AND UNDERSTAND THE INSTRUCTIONS IN DEATH, SERIOUS BODILY INJURY AND/OR CONTAINED HEREINAFTER BEFORE ATTEMPTING PROPERTY DAMAGE.
  • Page 4: Table Of Contents

    I.B. ATS-CP01 Page iv TABLE OF CONTENTS PAGE SECTION 1: INTRODUCTION Preliminary Comments and Safety Precautions....................1 1.1.1 Warranty and Liability Information ......................1 1.1.2 Safety Precautions ..........................1 General Information.............................1 1.2.1 Transfer Switch Types..........................2 1.2.2 Design Configuration ..........................2 Transfer Switch Catalog Number Identification ....................4 SECTION 2: RECEIVING, HANDLING AND STORAGE Receiving................................5 Handling ................................5...
  • Page 5 I.B. ATS-CP01 Page v PAGE SECTION 6: TESTING AND PROBLEM SOLVING Testing ................................20 Problem Solving ..............................20 6.2.1 Transfer Switch Appears Inoperative ....................21 6.2.2 Transfer Switch will not Automatically Transfer to Normal ..............21 6.2.3 Transfer Switch will not Automatically Transfer to Emergency ............21 6.2.4 Transfer Switch will not Automatically Recharge Switches ..............21 SECTION 7: MAINTENANCE...
  • Page 6 I.B. ATS-CP01 Page vi LIST OF FIGURES Figure Title Page Typical Load Transfer Switch (circuit breaker type) Schematic..............2 Typical Mini Transfer Switch with Dead Front Attached ................3 Typical Mini Transfer Switch with Dead Front Removed ................3 Typical Power Panel ..........................6 Insulated Case Switch ..........................6 Insulated Case Circuit Breaker ........................7 Side View and Rear View of Power Panel (terminal connections for...
  • Page 7: Section 1: Introduction

    I.B. ATS-CP01 Page 1 SECTION 1: INTRODUCTION NEL WITH THE STYLE OF PRESENTATION. THIS WILL HELP TO INSURE THAT PERSONNEL ARE ALERT TO WARNINGS, WHICH APPEAR THROUGH- 1.1 PRELIMINARY COMMENTS AND SAFETY OUT THE DOCUMENT. IN ADDITION, CAUTIONS PRECAUTIONS ARE ALL UPPER CASE AND BOLDFACE. This technical document is intended to cover most aspects associated with the installation, application, operation and maintenance of transfer switch equipment...
  • Page 8: Transfer Switch Types

    I.B. ATS-CP01 Page 2 emergency power source when sufficient generator volt- (3) A transfer mechanism to effect the transfer of the age is available. When normal power is restored, the main contacts from source to source. transfer switch automatically transfers back and initiates engine shutdown.
  • Page 9: Typical Mini Transfer Switch With Dead Front Attached

    I.B. ATS-CP01 Page 3 Figure 1-2 Typical Mini Transfer Switch with Dead Front Figure 1-3 Typical Mini Transfer Switch with Dead Front Attached Removed Table 1.1 Withstand Ratings Rating When Used with Upstream Circuit Breker Rating When Used with Upstream Fuse Transfer Switch Option 17C 240V...
  • Page 10: Transfer Switch Catalog Number Identification

    I.B. ATS-CP01 Page 4 Example: Catalog number (circled numbers correspond The switching devices have a high withstand to position headings in Table 1.2): rating (Table 1.1). The high-speed, stored-energy switch- The catalog number CTVISPA31000XSU describes a ing mechanism guarantees a transfer time of less than 5 cycles.
  • Page 11: Section 2: Receiving, Handling And Storage

    I.B. ATS-CP01 Page 5 SECTION 2: RECEIVING, HANDLING AND A plastic bag of documents will be found within the enclosure, usually attached to the inside of the door. STORAGE Important documents, such as test reports, wiring dia- grams, appropriate instruction leaflets and a warranty 2.1 RECEIVING registration card, are enclosed within the bag and should be filed in a safe place.
  • Page 12: Section 3: Equipment Description

    I.B. ATS-CP01 Page 6 SECTION 3: EQUIPMENT DESCRIPTION The enclosed automatic transfer switch consists of three basic panels interconnected through connector plugs and mounted in an enclosure: 3.1 GENERAL • Power Panel This Cutler-Hammer transfer switch equipment is avail- • Voltage Selection Panel able in one configuration: •...
  • Page 13: Load

    (Figure 3-4). 3.2.3 TRANSFER MECHANISM The transfer switch uses Cutler-Hammer SPB Type insu- lated case circuit breakers and insulated case switches with a stored-energy mechanism. An electrical operator automatically recharges the mechanism after the switch- ing device has been closed.
  • Page 14: Voltage Selection Panel

    I.B. ATS-CP01 Page 8 The switching device is closed by energizing a spring 3.6 OPTIONS (NON-LOGIC PANEL) released solenoid that releases the spring mechanism. A shunt trip will open the switching device if energized. Switch options, which are not part of the logic scheme, are available to meet a variety of other application requirements.
  • Page 15: Neutral Connection

    I.B. ATS-CP01 Page 9 16. Power Switch with Integral Overcurrent Protection Use of this option can, in many cases, eliminate the need for separate upstream overcurrent/short circuit protec- tion, thus enabling code requirements to be met with a device that takes up less space and requires less wiring. Both Normal and Emergency Sides Emergency side only Normal side only...
  • Page 16: Enclosure

    I.B. ATS-CP01 Page 10 B. Same as A except includes ground fault protection. 41. Space Heater with Thermostat 6.13 (156) A. 100 Watts B. 200 Watts C. 400 Watts 42. Seismic Withstand Capability Provides transfer switch with seismic capability exceeding the worst case Zone 4 required levels per both the Uni- 9.50 (241) 7.38 (187)
  • Page 17: Standards

    I.B. ATS-CP01 Page 11 The door is used to mount a variety of lights, switches by Underwriters Laboratories, Inc. under Standard UL and pushbuttons, depending upon the options required 1008. This standard covers requirements for automatic for a particular switch. All switch doors are supplied with transfer switches intended for use in ordinary locations a heavy duty plastic accessory panel in place, whether to provide for lighting and power as follows:...
  • Page 18: Section 4: Installation And Wiring

    I.B. ATS-CP01 Page 12 SECTION 4: INSTALLATION AND WIRING Dimensions of the transfer switch are an important con- sideration in determining proper location selection (Figure 4-1and 4-2). 4.1 GENERAL Transfer switches are factory wired and tested. 4.3 MOUNTING PROCEDURE Installation requires solidly mounting the enclosed unit and connecting power cables and auxiliary pilot circuits.
  • Page 19: Enclosed Fixed Mount Transfer Switch, 600-4000 Amperes

    I.B. ATS-CP01 Page 13 AUTOMATIC, NON-AUTOMATIC AND MANUAL TRANSFER SWITCHES Enclosures meet all current applicable NEMA and UL standards for con- 28.0 (71) 3P duit entry, cable bending, gutter space and shielding of live components. 34.0 (86) 4P NEMA 1 Enclosures 26.5 (67) 3P 50.0 (127) 9.75...
  • Page 20: Enclosed Fixed Mount Transfer Switch, 600-1200 Ampere Without Option 17C

    I.B. ATS-CP01 Page 14 13.1 (33) 16.5 36.5 (93) 12.3 (31) (42) (14) Normal Power Cutler-Hammer Operatio Digitrip 3000 High Time Overcurrent Commun Cable Curve Shape Pickup (x In) Time Multiplier Short Delay Time Connections Phase Phase Phase Phase Phase Ground Ground Program...
  • Page 21: Power Cable Connections

    I.B. ATS-CP01 Page 15 door and set it aside in a safe place until mounting is Proceed with the following steps: complete. Step 1: Verify that the line and load cables comply with Step 2: Gently maneuver the switch into its location applicable electrical codes.
  • Page 22: Voltage Selection Adjustment

    I.B. ATS-CP01 Page 16 4.5 VOLTAGE SELECTION ADJUSTMENT 4.6 WIRING Certain devices, such as the Voltage Selection Panel, CAUTION sensing relays and timers, need to be set and/or calibrated prior to placing the transfer switch equipment into service. Adjustments for logic devices are described in the separate POWER CONDUCTORS AND CONTROL WIRING instructional document dedicated to the specific logic being MAY HAVE VOLTAGE PRESENT THAT CAN CAUSE...
  • Page 23: Alarm Contacts

    I.B. ATS-CP01 Page 17 ALARM CONTACTS TDUP (Time Delay Utility Parallel) times out (preset by user). The TDUP timer starts timing when both sources Closed transition automatic transfer switches are provid- are paralleled. Refer to the IQ Transfer instruction book ed with 4 N.O.
  • Page 24: Section 5: Operation

    I.B. ATS-CP01 Page 18 SECTION 5: OPERATION logic panel. In the case of the automatic transfer switch design, any attempt to operate the manual handle without first isolating the control circuit 5.1 GENERAL causes an automatic transfer. WARNING 5.2 AUTOMATIC TRANSFER SWITCH The operating sequence of a closed transition automatic THIS PRODUCT CONTAINS A SPECIAL CONTACT transfer switch is dictated by the switch’s standard fea-...
  • Page 25: Switching Device Closing Precautions

    I.B. ATS-CP01 Page 19 · The normal relay closes certain contacts while Test Mode opening others. This starts the return to the normal A test begins when either the “TEST” button is used or power source and normal transfer switch operation. when the plant exerciser (if available) initiates a test.
  • Page 26 I.B. ATS-CP01 Page 20 SECTION 6: TESTING AND PROBLEM WARNING SOLVING 6.1 TESTING ONLY PROPERLY TRAINED PERSONNEL FAMILIAR WITH THE TRANSFER SWITCH EQUIPMENT AND After transfer switch equipment is initially installed or dur- ITS ASSOCIATED EQUIPMENT SHOULD BE PERMIT- ing planned outages, the installation should be tested to TED TO PERFORM THE PROBLEM SOLVING FUNC- insure that all equipment operates properly.
  • Page 27 I.B. ATS-CP01 Page 21 6.2.1 TRANSFER SWITCH APPEARS INOPERATIVE 10 volts? Record reading. If YES: Check spring release coil in normal Step 1: Verify that all plugs and sockets are properly switching device. interconnected. If NO: Check wiring to A1 and A2. Step 2: Verify that the correct system voltage appears at NORMAL switch.
  • Page 28 I.B. ATS-CP01 Page 22 SECTION 7: MAINTENANCE In general, transfer switch equipment is designed to be relatively maintenance free under normal usage. How- ever, because of the variability of application conditions 7.1 INTRODUCTION and the importance placed on dependable operation by this type of equipment, inspection and maintenance checks should be made on a regularly scheduled basis.
  • Page 29 I.B. ATS-CP01 Page 23 Table 7.1 Periodic Maintenance Procedures Step Action a. Make transfer switch equipment safe for Disconnect line power from equipment being serviced by inspection and/or maintenance. opening next highest disconnect device. Make certain that any accessory control power is switched off and logic plugs disconnected.
  • Page 30 I.B. ATS-CP01 Page 24 Effective 5/98...
  • Page 32 I.B. ATS-CP01 This instruction booklet is published solely for informa- tion purposes and should not be considered all inclu- sive. If further information is required, you should con- sult Cutler-Hammer. Sale of product shown in this literature is subject to terms and conditions outlined in appropriate Cutler- Hammer selling policies or other contractual agreement between the parties.

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