Vanguard CT-7000 S3 User Manual

CT-7000 S3

DIGITAL CIRCUIT BREAKER ANALYZER

USER’S MANUAL

Vanguard Instruments Company, Inc.

1520 S. Hellman Ave. Ontario, California 91761, USA

TEL: (909) 923-9390 FAX: (909) 923-9391

August 2013

Revision 1

CT-7000 S3 USER’S MANUAL REV 1

SAFETY SUMMARY

FOLLOW EXACT OPERATING PROCEDURES

Any deviation from the procedures described in this User’s Manual may create one or more safety hazards, may damage the CT-7000 S3, or cause errors in the test results. Vanguard Instruments Company, Inc. assumes no liability for unsafe or improper use of the CT-7000 S3.

All safety precautions provided in this manual must be observed during all phases of testing including test preparation, test lead connection, actual testing, and test lead disconnection.

SAFETY WARNINGS AND CAUTIONS

Only trained operators shall use the CT-7000 S3. All devices under test shall be off-line and fully isolated. Do not perform test procedures or service unless another person is also present who

is capable of rendering aid and resuscitation.

DO NOT MODIFY TEST EQUIPMENT

To avoid the risk of introducing additional or unknown hazards, do not install substitute parts or perform any unauthorized modification to any CT-7000 S3 test unit. To ensure that all designed safety features are maintained, it is highly recommended that repairs be performed only by Vanguard Instruments Company factory personnel or by an authorized repair service provider. Unauthorized modifications can cause safety hazards and will void the manufacturer’s warranty.

WARNING

Do not remove test leads during a test. Failure to heed this warning can result in electrical shock to personnel and damage to the equipment.

REV 1 CT-7000 S3 USER’S MANUAL

TABLE OF CONTENTS

CONVENTIONS USED IN THIS DOCUMENT ..................................................................................... 1

1.0 INTRODUCTION .................................................................................................................. .. 2

1.1 General Description and Features ................................................................................... 2

1.2 Optional Features ............................................................................................................ 4

1.3 Technical Specifications ................................................................................................... 5

1.4 CT-7000 S3 Controls and Indicators ................................................................................. 6

2.0 PRE-TEST SETUP ................................................................................................................... 8

2.1 LCD Screen Contrast Control ............................................................................................ 8

2.2 Printer Paper Control ....................................................................................................... 8

2.3 Printer Paper .................................................................................................................... 8

3.0 OPERATING PROCEDURES ................................................................................................. 10

3.1 Cable Connections ......................................................................................................... 10

3.1.1. Contact Cable Connections .................................................................................... 10

3.1.2. Initiate Cable Connections ..................................................................................... 12

3.1.3. Online Timing Connections (with optional Online Timing feature) ....................... 14

3.1.4. Dual Ground Connections (with optional Dual Ground feature) ........................... 16

3.1.5. Analog and Digital Voltage Monitoring Connections ............................................. 17

3.1.6. External Trigger Input Connections ........................................................................ 18

3.1.7. Digital Transducer Connection ............................................................................... 19

3.1.8. Resistor Type Transducer Connection .................................................................... 20

3.2 Changing Setup Parameters ........................................................................................... 21

3.2.1. Entering Test Record Header Information ............................................................. 21

3.2.2. Setting the Clock ..................................................................................................... 24

3.2.3. Configuring Automatic or Manual Printing of Test Results .................................... 25

3.2.4. Setting the Units of Measure ................................................................................. 26

3.2.5. Setting the OPEN Timing Analysis Points ............................................................... 27

3.2.6. Selecting the Contact Cycle Reading Frequency .................................................... 30

3.2.7. Configuring the Channel Settings ........................................................................... 34

3.2.8. Configuring the Contact Filter Settings .................................................................. 36

3.2.9. Configuring the Transducer Encoder Filter Setting ................................................ 38

3.2.10. Configuring the Digital Rotary Transducer Settings ............................................... 40

3.2.11. Configuring the Resister Type Transducer Settings ............................................... 42

3.3 Performing Circuit Breaker Timing Tests ....................................................................... 50

3.3.1. Timing an OPEN Operation ..................................................................................... 51

3.3.2. Timing a CLOSE-OPEN Operation Using Contact Channel #1 ................................. 54

3.3.3. Timing an OPEN-CLOSE-OPEN Operation ............................................................... 58

3.3.5. Printing or Viewing Timing Results ......................................................................... 67

3.4 Working with Test Records ............................................................................................ 77

3.4.1. Saving a Timing Record in Flash EEPROM .............................................................. 77

3.4.2. Printing a Directory of Test Records Stored in the CT-7000 S3's Memory ............ 78

3.4.3. Printing a Directory of Test Records Stored in a USB Flash Drive .......................... 80

3.4.4. Recalling a Test Record from the Flash EEPROM ................................................... 81

CT-7000 S3 USER’S MANUAL REV 1

3.4.5. Restoring a Test Record from a USB Flash Drive .................................................... 83

3.4.6. Copying Test Records to a USB Flash Drive ............................................................ 85

3.4.7. Deleting Test Records from the Flash EEPROM ..................................................... 87

3.4.8. Deleting Test Records from a USB Flash Drive ....................................................... 90

3.5 Working With Test Plans ................................................................................................ 93

3.5.1. Recalling a Breaker Test Plan for Use ..................................................................... 93

3.5.2. Printing a Directory of Test Plans Stored in the CT-7000 S3’s Memory ................. 96

3.5.3. Printing a Directory of Test Plans Stored in a USB Flash Drive .............................. 98

3.5.4. Printing a Breaker Test Plan Stored in the CT-7000's Memory ............................ 100

3.5.5. Printing a Breaker Test Plan Stored in a USB Flash Drive ..................................... 102

3.5.6. Copying a Test Plan to a USB Flash drive ............................................................. 104

4.0 DIAGNOSTICS, VERIFICATION, AND TROUBLESHOOTING ............................................... 109

4.1 Performing a Slow-Close Test ...................................................................................... 109

4.2 Performing a Transducer Self-Test .............................................................................. 111

4.3 Testing the Cable Hookups .......................................................................................... 113

4.4 Printing Raw Test Record Data .................................................................................... 115

4.5 Troubleshooting Guide ................................................................................................ 117

5.0 APPENDICES ..................................................................................................................... 119

5.1 APPENDIX A – ITE Model 14.4K Circuit Breaker Timing Charts and Reports ............... 119

5.2 APPENDIX B – Siemens TCP Breaker Velocity Calculation ........................................... 124

5.3 APPENDIX C – Siemens SPS2 Breaker Velocity Calculation ......................................... 125

5.4 APPENDIX D – CT-7000 S3 Test Plan for Siemens SPS2 ............................................... 126

5.5 APPENDIX E – CT-7000 S3 Transducer Illustrations ..................................................... 127

5.6 APPENDIX F – CT-7000 S3 Accessories ......................................................................... 130

LIST OF TABLES

Table 1. CT-7000 S3 Technical Specifications ................................................................................. 5

Table 2. Functional Descriptions of CT-7000 S3 Controls and Indicators ....................................... 7

Table 3. Descriptions of Tabulated Test Results Elements ........................................................... 70

iii

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LIST OF FIGURES

Figure 1. CT-7000 S3 Controls and Indicators ................................................................................. 6

Figure 2. Typical 3-Phase Circuit Breaker Connections ................................................................ 10

Figure 3. Typical Connections for Series Contact Circuit Breaker ................................................ 11

Figure 4. Typical DC Trip and DC Close Control Circuit Connection ............................................. 12

Figure 5. Typical DC Trip and AC Close Control Circuit Connection .............................................. 13

Figure 6. On-line Timing Probe Set (Part No. 9021-OT) ................................................................ 14

Figure 7. Typical Connections for Optional On-line Timing Mode ............................................... 15

Figure 8. Typical Connections for Optional Dual Ground Testing Mode ...................................... 16

Figure 9. Typical Analog and Digital Voltage Monitoring Connections ........................................ 17

Figure 10. Typical External Trigger Input Cable Connections ....................................................... 18

Figure 11. Typical Digital Transducer Connection ........................................................................ 19

Figure 12. Typical Resistor Type Transducer Connection ............................................................. 20

Figure 13. Typical 50 Hz Tabulated Test Results ........................................................................... 33

Figure 14. Typical 60 Hz Tabulated Test Results ........................................................................... 33

Figure 15. Contact Filter Setting Illustrations ............................................................................... 37

Figure 16. Sample Resistor Type Transducer Setup Directory ..................................................... 48

Figure 17. Sample Timing Report Using a Resistor Type Transducer ........................................... 49

Figure 18. Typical O-C-O Test Results Graph ................................................................................ 63

Figure 19. Typical Tabulated Test Results Printout for an O-C-O Operation ................................ 64

Figure 20. Typical On-Line Timing Test Graph Printout ................................................................ 65

Figure 21. Typical On-Line Timing Test Results Printout .............................................................. 66

Figure 22. Typical Tabulated Test Results Printout for a CLOSE Operation ................................. 69

Figure 23. Typical Test Results Graph (CB CLOSE Test) ................................................................ 71

Figure 24. Expansion Graph from 0ms to 200ms (CB CLOSE Test) ............................................... 72

Figure 25. Typical O-C-O Test Results Graph ................................................................................ 73

Figure 26. Typical Tabulated Test Results Printout for an O-C-O Operation ................................ 74

Figure 27. Graphical Interpretation of an OPEN Timing Shot ....................................................... 75

Figure 28. Graphical Interpretation of a CLOSE Timing Shot ........................................................ 75

Figure 29. Graphical Interpretations of an OPEN-CLOSE and CLOSE-OPEN Timing Shot ............. 76

Figure 30. Sample Test Record Directory Printout ....................................................................... 79

Figure 31. Typical Test Results Printout with Pass/Fail Indicators ............................................... 95

Figure 32. Typical Test Plan Directory Printout ............................................................................ 97

Figure 33. Typical Breaker Test Plan Printout ............................................................................. 106

Figure 34. Siemens SPS2 121 CLOSE Timing Illustration ............................................................. 107

Figure 35. Siemens SPS2 121 OPEN Timing Illustration .............................................................. 108

Figure 36. Typical Slow-Close Test Results Printout ................................................................... 110

Figure 37. Partial Data Points Printout ....................................................................................... 116

CONVENTIONS USED IN THIS DOCUMENT

This document uses the following conventions:

•

A key or switch on the CT-7000 S3 is indicated as

CT-7000 S3 USER’S MANUAL REV 1

[KEY]

and

[SWITCH]

Menu options are referenced as (MENU OPTION).

•

Screen and menu names are referenced as “SCREEN/MENU NAME”.

•

The terms “test record” and “test shot” are used interchangeably.

•

• CT-7000 S3 LCD screen output is shown as:

1. OPTION 1

2. OPTION 2

3. OPTION 3

4. OPTION 4

5. OPTION 5

• When instructions are provided, the menu item that should be selected is shown in bold as

shown below (option 3 should be selected):

1. OPTION 1

2. OPTION 2

3. OPTION 3

4. OPTION 4

5. OPTION 5

• Warning messages are indicated as:

Warning message

WARNING

• Important notes are indicated as:

Note details

NOTE

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1.0 INTRODUCTION

1.1 General Description and Features

The CT-7000 S3 is Vanguard's fourth generation EHV circuit breaker analyzer. The CT-7000 S3 is available with 3 (part number 9021-UC) or 6 contact timing channels (part number 9100UC).The CT-7000 S3 can fully analyze a circuit breaker's performance by measuring the main contact and resistor contact time, stroke, velocity, over-travel, bounce back and contact wipes. Both contact and motion analysis can be performed on all circuit breaker operations (OPEN, CLOSE, OPEN-CLOSE, CLOSE-OPEN, and OPEN-CLOSE-OPEN). The CT-7000 S3's timing window is selectable between 1 second, 10 seconds, and 20 seconds.

Contact Timing Input Channels

The CT-7000 S3's dry contact timing channels (up to 6 channels) are used to time the circuit breaker main contacts. Each main contact timing channel is capable of detecting the main contact and insertion resistor contact time. Timing results are displayed in milliseconds and cycles.

Breaker Stroke and Velocity

Three dedicated digital travel transducer channels are available on the CT-7000 S3 for measuring circuit-breaker contact stroke, velocity, over-travel, and bounce back. With the use of the Vanguard digital travel transducers, neither calibration nor setting is required. Circuit breaker contact velocity is calculated based on contact’s travel distance over a period of time. Special formulas to calculate velocity is also accommodated by the CT-7000 S3. Special feature is also available to “Slow-Close” test the circuit breaker and obtain a test result report.

Resistor Type Transducer Inputs

The CT-7000 S3 offers 3 resistor type transducer input channels. These input channels are used to interface with any resistor-type transducer to monitor the circuit breaker motion. Transducer resistance ranges from 200 Ohms to 10K Ohms.

Voltage Monitoring Channels

The CT-7000 S3 features three voltage monitoring input channels (V1, V2, and V3). The V1 voltage channel is dedicated to monitoring the substation DC supply or coil voltage (0-255 V, DC or peak AC). The nominal and minimum DC supply voltage levels are recorded and printed on the tabulated report. An analog waveform showing the DC power supply is plotted on the graphical report. The two digital voltage input channels, V2 and V3, are dedicated to monitoring voltage on/off status presence or absence of the circuit breaker auxiliary switches. Digital waveforms showing V2 and V3 activity are plotted on the graphical report. Three timing events of the V2 and V3 activities are recorded and printed on the tabulated report.

CT-7000 S3 USER’S MANUAL REV 1

Breaker Initiate Features

A built-in solid-state initiate device is used to operate a breaker from the CT-7000 S3. Operational modes include OPEN, CLOSE, OPEN-CLOSE, CLOSE-OPEN, and OPEN-CLOSE-OPEN. Multiple operation like OPEN-CLOSE, CLOSE-OPEN, and OPEN-CLOSE-OPEN can be initiated by using a programmable delay time (in milliseconds) or by sensing a specific breaker contact condition.

OPEN/CLOSE Coil Current Monitoring

One built-in, hall-effect sensor records the OPEN/CLOSE coil current amplitude and waveform. The circuit breaker’s coil current waveform, effectively, a coil performance “fingerprint” or “current profile”, can be used as a diagnostic tool for analyzing the circuit breaker’s performance.

Computer Interface

The CT-7000 S3 can be computer-controlled via the USB or optional Bluetooth interface. Windows-based Circuit Breaker Analysis Software is provided with each unit. Using this software, circuit breakers can be timed from the PC. Test records can be retrieved from the CT7000 S3 and then stored on the PC for future analysis and report generation. Circuit breaker test plans can also be created on the PC and transferred to the CT-7000 S3. Additionally, test records can be automatically exported in Excel, PDF, and XML formats.

Internal Test Record and Test Plan Storage

The CT-7000 S3 uses Flash memory to store up to 200 test records internally. Test records can be recalled and printed on the unit's built-in 4.5" wide thermal printer. Test records can also be transferred to a USB Flash drive or exported to a PC via the USB port or Bluetooth (optional) with the included Windows-based software. Up to 100 circuit breaker test plans can be stored in the CT-7000 S3's Flash memory. A test plan is comprised of all circuit breaker performance specifications (contact time, stroke, velocity, etc.). When a test plan is used with a timing test, a Pass/Fail report is generated by comparing the actual performance with the specifications in the stored test plan. Test plans can be transferred to the CT-7000 S3 from a USB Flash drive, or from a PC via the USB port or Bluetooth (optional).

External Test Record and Test Plan Storage

A USB Flash drive can be used to store and transfer test plans and up to 999 test records.

Built-in Thermal Printer

The CT-7000 S3's built-in 4.5" wide thermal printer can print the breaker contact analysis results in both tabular and graphic formats.

User Interface

The CT-7000 S3 features a back-lit graphic LCD screen (240 x 128 pixels) that is viewable in direct sunlight and low-light levels. A rugged 44-key "QWERTY"-style membrane keypad is used to control the unit and input information.

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Diagnostic Capabilities

The CT-7000 S3 can perform diagnostics on its internal electronics. Diagnostics can be performed to verify contact cable connections and to test the travel transducer’s electronics.

1.2 Optional Features “On-line” Timing Mode

In addition to the conventional off-line timing mode, the CT-7000 S3 also offers an optional three-phase “on-line” timing mode. In this mode, the CT-7000 S3 captures the breaker’s trip or close time, the trip/close coil current “fingerprint”, and the battery supply voltage while the breaker is still in service. The trip/close time is derived from the time of trip, or close coil initiation, to the breaker’s bushing current breaker-make as detected by a AC clamp-on current sensing probes. Trip/Close current waveforms are also captured by an external clamp-on DC current probe.

The “on-line” timing mode can detect a breaker’s operating conditions with little or no down time. In this mode, the first trip operation time of the breaker is captured. If a breaker has been in service for a long period of time and sitting in close position, the first trip time of the breaker may be slow possibly due to a sticky mechanism. The “on-line” mode is very useful in such cases because traditional breaker timing may not detect this condition since several operations may have occurred before the first timing test is conducted.

Dual Ground Testing Mode

With the optional dual ground testing mode, the CT-7000 S3 can measure a CB contact time with ground being applied to both sides of the bushings. The clamp-on probe is connected to one side of the CB safety ground straps, and an AC signal is coupled to this strap. A sensor on the probe will detect a change in the induced AC signal when the CB contact is opened or closed.

Bluetooth Interface

The optional Bluetooth interface can be used to wirelessly connect the CT-7000 S3 with a PC.

1.3 Technical Specifications

Table 1. CT-7000 S3 Technical Specifications

TYPE

Portable circuit-breaker analyzer

PHYSICAL SPECIFICATIONS

INPUT POWER

DRY-CONTACT INPUTS

TIMING WINDOWS

TIMING RESOLUTIONS

TIMING ACCURACY

DRY-CONTACT CHANNEL PROTECTION

DRY-CONTACT DETECTION RANGE

INSERTION RESISTOR DETECTION

RANGE

TRIGGER INPUT VOLTAGE

VOLTAGE SENSING INPUT RANGE

BREAKER OPERATIONS

BREAKER INITIATE CAPACITY

INITIATE CURRENT READING RANGE

DIGITAL TRAVEL TRANSDUCER

INPUTS RESISTOR TYPE TRANSDUCER INPUTS CONTACT TRAVEL POINT DIFFERENCE

DISPLAY PRINTER

INTERNAL TEST RECORD STORAGE

EXTERNAL TEST RECORD STORAGE

COMPUTER INTERFACES

PC SOFTWARE

CABLES

OPTIONS

SAFETY

ENVIRONMENT

HUMIDITY

ALTITUDE

WARRANTY

14”W x 21 K” L x 8” D (35 cm x 53 cm x 20 cm); 15 lbs (6.8 Kg) 100-240Vac, 3A, 50/60Hz 3 channels (9021-UC) or 6 channels (9100-UC). Channel can detect the main contact

and resistor contact time. 1 second, 10 seconds, or 20 seconds ±50 micro-seconds @ 1 sec. duration

±500 micro-seconds @ 10 sec. duration ±1.0 milli-seconds @ 20 sec. duration

0.05% of reading ±0.05 ms @ 1 second duration All contact inputs are grounded until test. Input channels are also protected against

static discharge. Closed: Less than 20 Ohm.

Opened: greater than 5000 ohm 50 – 5,000 ohms

Open/Close trigger voltage: 24 V – 300V DC or peak AC V1: analog input; 0 – 250 V DC or peak AC; sensitivity ±1 V; record and print voltage

level V2 and V3: voltage presence/absence detector input; 24 – 255 V DC or peak AC; record and print 3 timing events

Initiate Open, Close, Open-Close, Close-Open, Open-Close-Open 30A, 250 Vac/dc max one, non-contact, Hall-effect sensor, 0 – 20 amp range, dc to 5 Khz AC 3 digital travel transducer channels; linear range: 0.0 – 60.0 in (±0.01 in)

rotary range: 0 – 360 degrees (±0.36 degrees) 3 channels, 200 ohms – 10K ohms measures “slow-close” contact-point distances; results can be printed back-lit LCD screen (128 x 240 pixels); viewable in bright sunlight and low light built-in 4.5” wide thermal printer that can print both graphic contact travel waveforms

and tabulated test results Store up to 200 test records and 100 test plans USB Flash drive interface for external storage of test records (999 max) and test plans One USB port, optional Bluetooth wireless interface Windows® based Breaker Analysis software included with purchase price furnished with full set of test leads transportation cases (available for the CT-7000 S3 and travel transducers), on-line

timing mode, dual ground testing mode, bluetooth interface

designed to meet UL 6101A-1 and CAN/CSA C22.2 No 1010.1-92 standards Operating: -10°C to +50°C (+15°F to +122°F)

Storage: -30°C to +70°C (-22°F to +158°F)

90% RH @ 40°C (104°F) non-condensing 2,000 m (6,562 ft) to full safety specifications one year on parts and labor

CT-7000 S3 USER’S MANUAL REV 1

The above specifications are valid at nominal operating voltage and at a temperature of 25°C (77°F). Specifications may change without prior notice.

NOTE

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1.4 CT-7000 S3 Controls and Indicators

The CT-7000 S3’s controls and indicators are shown in Figure 1 below. A leader line with an index number points to each control and indicator, which is cross-referenced to a functional description in Table 2. The table describes the function of each item on the control panel. The purpose of the controls and indicators may seem obvious, but users should become familiar with them before using the CT-7000 S3. Accidental misuse of the controls will usually cause no serious harm. Users should also be familiar with the safety summary found on the front page of this User’s Manual.

Figure 1. CT-7000 S3 Controls and Indicators

CT-7000 S3 USER’S MANUAL REV 1

Table 2. Functional Descriptions of CT-7000 S3 Controls and Indicators

Item

Number

2 3 4

7 8

9 10

14 15 16 17 18 19

Panel Markings Functional Description

CONTACT INPUT

(C1-C6)

T1, T2, T3 Digital travel transducer channels (16-p in conne ctor s).

R1, R2, R3 Resistor type transducer inputs (5-pin).

V1 V1 voltage input channel dedicated to monitoring circuit breaker DC power

V2, V3 V2 and V3 voltage input channels dedicated to detecting voltage ab sence or

EXT. TRIGGER Triggers voltage input for external trigger application. Voltage level ranges from

DC CURRENT External DC current probe connector.

INITIATE 4-pin connector used for the switching circuit for operating the circuit breaker

GROUND Safety ground terminal.

120-240Vac, 3A

50-60Hz

OPEN

250V/5A

"PUSH TO ARM" Spring-loaded pushbutton switch. Press and hold to co mpl ete the Trip or Close

Built-in 4.5" wide thermal printer.

BLUETOOTH Bluetooth status indicator (optional).

Rugged "QWERTY" style membrane keypad. Back-lit LCD screen (128 x 240 pixels); viewable in bright sunlight and low light.

USB PC USB computer interface port.

USB MEM USB Flash drive interface port.

Female connectors for the contact channels. The CT-7000-6 S3 is pictured with 6 channels.

supply or coil voltages. Voltage sensing range is from 0-250 V DC or peak AC.

presence. Voltage input ranges from 24-255 V DC or peak AC. Each voltage channel records 3 timing events (voltage on /off) and the re sults are printed on the tabulated report.

24 - 300 V DC or peak AC.

under test.

Power plug, power switch, line filter, and fuse holder

Open circuit fuse: 5 Ampere, 250V, Fast-Blow.

Close circuit fuse: 5 Ampere, 250V, Fast-Blow.

circuits for breaker tests.

REV 1 CT-7000 S3 USER’S MANUAL

2.0 PRE-TEST SETUP

2.1 LCD Screen Contrast Control

To increase the LCD screen contrast, press and hold the [] key for two seconds. Release the button when the desired contrast level has been reached.

To decrease the LCD screen contrast, press and hold the [] key for two seconds. Release the button when the desired contrast level has been reached.

2.2 Printer Paper Control

To advance the thermal printer paper, press and release the [] key.

To retract the thermal printer paper, press and release the [] key.

2.3 Printer Paper

The CT-7000 S3’s built-in thermal printer uses 4.5-inch wide thermal paper for printing test results. To maintain the highest print quality and to avoid paper jams, the use of thermal paper supplied by Vanguard Instruments Company is highly recommended. Additional paper can be ordered from the following sources:

Vanguard Instruments Co, Inc.

1520 S. Hellman Avenue Ontario, CA 91761 Tel: 909-923-9390 Fax: 909-923-9391 Part Number: VIC TP-4 paper

BG Instrument Co.

13607 E. Trent Avenue Spokane, WA 99216 Tel: 509-893-9881 Fax: 509-893-9803 Part Number: VIC TP-4 paper

CT-7000 S3 USER’S MANUAL REV 1

2.4 Replacing the Thermal Printer Paper

The roll of thermal paper is housed inside a dispenser underneath the printer cover. To replace the paper, follow the steps below:

• Unscrew the two large printer cover screws and remove the printer cover.

• Remove the leftover thermal paper roll from the paper holder.

• Unroll the new thermal paper roll.

• Feed the thermal paper into the slot between the paper pocket and the rubber roller.

The printer will automatically pull the paper under the thermal head.

• Place the paper roll into the paper holder.

• Lift the thermal head and align the thermal paper if necessary.

• Re-install the printer cover.

Thermal paper has a chemical coating on one side of the paper. This side should be facing the thermal print head. Incorrect paper loading may result in blank output on

NOTE

the thermal paper.

The thermal paper will show a red stripe to indicate that the roll is about to run out of paper.

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3.0 OPERATING PROCEDURES

3.1 Cable Connections

3.1.1. Contact Cable Connections

A typical contact cable connection to a circuit breaker is shown in Figure 2. Red and black clips are connected across the circuit contact phases A, B, and C. A typical circuit breaker with series contacts is shown in Figure 3.

It is advisable to ground one side of the contacts for most testing purposes. If a breaker is floating or un-grounded, ensure that the contact channel inputs are

NOTE

protected against static discharge.

Figure 2. Typical 3-Phase Circuit Breaker Connections

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Figure 3. Typical Connections for Series Contact Circuit Breaker

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3.1.2. Initiate Cable Connections

The CT-7000 S3 can trip or close breakers through a solid-state device operating on any AC or DC control voltage ranging from 10 to 300 Volts. Both the trip and close circuits are protected by 5 Ampere fuses. A typical DC trip and DC close control circuit connection is shown in Figure

4. A typical DC trip and AC close control circuit connection is shown in Figure 5.

Figure 4. Typical DC Trip and DC Close Control Circuit Connection

Auxiliary switches, in series with the OPEN and CLOSE coil control circuit, are used to interrupt the coil current.

NOTE

CT-7000 S3 USER’S MANUAL REV 1

Figure 5. Typical DC Trip and AC Close Control Circuit Connection

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3.1.3. Online Timing Connections (w it h optional Online Timing feature)

In addition to the conventional off-line timing mode, the CT-7000 S3 also offers an optional three-phase “on-line” timing mode. In this mode, the CT-7000 S3 captures the breaker’s trip or close time, the trip/close coil current “fingerprint”, the battery supply voltage, and auxiliary switch times while the breaker is still in service. The trip/close time is derived from the time of trip, or close coil initiation, to the breaker’s bushing current breaker make/break as detected by a AC clamp-on current sensing probes. Trip/Close current waveforms are also captured by an external clamp-on DC current probe.

The CT-7000 S3 On-Line timing mode requires the use of 3 AC current sensors (provided with the Online Timing Option, Part no. 9021-OT) to monitor the contact time phases A, B, and C. The Open and Close coil current is monitored by using the provided DC current sensor (provided with the Online Timing Option, Part no. 9021-OT). The On-Line timing mode requires the External trigger to be connected. Please see Figure 7 for the On-Line timing test connections.

Figure 6. On-line Timing Probe Set (Part No. 9021-OT)

CT-7000 S3 USER’S MANUAL REV 1

Figure 7. Typical Connections for Optional On-line Timing Mode

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3.1.4. Dual Ground Connections (w ith optional Dual Ground feature)

The CT-7000 S3 Dual Ground test mode requires the use of the Vanguard Dual Ground Current Probes (provided with the Dual Ground option, part no. 9021-DG). Up to 3 timing channels are available with the Dual Ground option. Only timing channels 1, 2, and 3 are used for this mode (see Figure 8).

Figure 8. Typical Connections for Optional Dual Ground Testing Mode

Transducer channels, voltage monitoring channels, and the initiate circuit are connected the same as the regular time travel test mode.

NOTE

CT-7000 S3 USER’S MANUAL REV 1

3.1.5. Analog and Digital Vo ltage Monitoring Connections

The analog voltage input “V1” can monitor a breaker’s DC control voltage during an operation. The analog voltage input records the nominal DC voltage at no load and the minimum DC voltage while the Trip or Close coil is energized. The nominal and minimal voltage readings are printed on a tabulated report, and the analog waveforms are plotted in graphical format. This allows the user to see the breaker’s DC control voltage “dip” under load conditions and helps detect problems such as a poor connection or an excessive voltage drop during operation. Please note that the maximum voltage that can be recorded is 250 Vdc.

The digital voltage input channels “V2” and “V3” can monitor the voltage status as “ON” or “OFF” states. The voltage “ON” or “OFF” states are plotted on the graphical report. Three voltage on/off events are also printed on the tabulated timing report. Typical analog (“V1”) and digital (“V2”) voltage monitoring connections are shown in Figure 9.

Figure 9. Typical Analog and Digital Voltage Monitoring Connections

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3.1.6. External Trigger Input Connections

The External Trigger Mode can be used to start recording data when the CT-7000 S3 senses a voltage. A typical application for the External Trigger Mode is to time a circuit breaker in a Close operation and to start timing only when the Close coil is energized, thus bypassing the 52X relay delay time.

Since the 52X relay carries the Close coil current, the CT-7000 S3’s initiate cable must be connected to the Close terminal as shown in Figure 4. The CT-7000 S3 will energize the 52X relay to start the Close operation, which will then start the timing when the CT-7000 S3 senses the voltage across the closing coil. Typical external trigger input connections are shown in Figure 10.

Another application for the External Trigger is to start timing the breaker when the user trips or closes the breaker remotely.

• The minimum trigger voltage is 30 Vac/dc. Maximum, continuous voltage is limited

to 300 Vac/dc. Different trigger voltages can be set at the factory by request.

NOTES

• The CT-7000 S3 will start looking for the external trigger voltage when the message

“AWAITING TRIGGER…” is displayed on the LCD screen. The external trigger voltage must be sensed by the CT-7000 S3 within 15 seconds after the initiate sequence has begun. The CT-7000 S3 will return to the “START-UP” menu if no voltage is sensed.

Figure 10. Typical External Trigger Input Cable Connections

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3.1.7. Digital Transducer Connection

A typical digital transducer connection is shown in Figure 11.

Figure 11. Typical Digital Transducer Connection

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3.1.8. Resistor Type Transducer Con nection

The CT-7000 S3 provides three channels for resistor type transducers. The transducer resistance input can range from 200 Ohms to 10K Ohms. The CT-7000 S3 supplies a 5 Vdc reference voltage to power the resistor type transducer. The sense voltage is translated into a travel distance based on the transducer calibration parameters. The user is required to setup the resistor transducer before performing a test. Up to nine transducer setups can be stored in the CT-7000 S3’s internal memory. Once a transducer setup is stored, it can be recalled quickly before running a test. A typical resistor type transducer connection is shown in Figure 12.

• When a resistor type transducer is selected, all three resistor transducer channels

(R1, R2, and R3) are active and will be shown on the test results (see Figure 17).

NOTES

• A 15-foot transducer cable with 3 quick disconnect clips is provided with each CT-

7000 S3. The 3 clips are labeled “+5V”, “Signal”, and “GND”.

• See section 3.2.11 for resistor type transducer calibration information.

Figure 12. Typical Resistor Type Transducer Connection

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3.2 Changing Setup Parameters

3.2.1. Entering Test Record Header Information

You can enter the test record header information before performing tests. The record header includes identifying information such as the company, station, circuit, model number, etc. Once the header information has been entered, it will apply to all subsequent test records. To enter the header information:

a. When the unit is turned on and the firmware is loaded, you will be presented with the

“START-UP” menu as shown below:

1. TIME BREAKER 09/12/13

2. GET RESULTS 10:10:10

3. SAVE/RESTORE

4. SETUP

5. DIAGNOSTICS

Press the [4] key (SETUP).

b. The following screen will be displayed:

1. ANALYSIS POINTS

2. MEASUREMENT UNITS

3. SHOT DESCRIPTION

4. NUMBER OF CHANNELS

5. NEXT PAGE

Press the [3] key (SHOT DESCRIPTION).

c. The following screen will be displayed:

COMPANY:

↑↓ to position

"ENTER" TO ACCEPT

Type the company name using the keypad. To erase a character at the cursor position, press the [CLEAR] key. Press the [] key to move to the next character. Press the [] key to move to the previous character. Press the [ENTER] key when you are done typing the company name.

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d. The following screen will be displayed:

STATION:

↑↓ to position

"ENTER" TO ACCEPT

Type the station name using the keypad and then press the

e. The following screen will be displayed:

CIRCUIT:

↑↓ to position

"ENTER" TO ACCEPT

Type the circuit information using the keypad and then press the

f. The following screen will be displayed:

MANUFACTURER:

↑↓ to position

"ENTER" TO ACCEPT

[ENTER] key.

Type the circuit breaker manufacturer name using the keypad and then press the

[ENTER] key.

g. The following screen will be displayed:

MODEL:

↑↓ to position

"ENTER" TO ACCEPT

Type the circuit breaker model information using the keypad and then press the

[ENTER] key.

h. The following screen will be displayed:

SERIAL NUMBER:

↑↓ to position

"ENTER" TO ACCEPT

CT-7000 S3 USER’S MANUAL REV 1

Type the circuit breaker serial number using the keypad and then press the

[ENTER]

key.

i. The following screen will be displayed:

OPERATOR:

↑↓ to position

"ENTER" TO ACCEPT

Type the operator’s name using the keypad and then press the

[ENTER] key. All

header information will be saved, and you will be returned to the “START-UP” menu.

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3.2.2. Setting the Clock

Follow the steps below to set the CT-7000 S3’s internal clock:

a. Start from the “START-UP” menu:

1. TIME BREAKER 09/12/13

2. GET RESULTS 10:10:10

3. SAVE/RESTORE

4. SETUP

5. DIAGNOSTICS

Press the [4] key (SETUP).

b. The following screen will be displayed:

1. ANALYSIS POINTS

2. MEASUREMENT UNITS

3. SHOT DESCRIPTION

4. NUMBER OF CHANNELS

5. NEXT PAGE

Press the [5] key (NEXT PAGE).

c. The following screen will be displayed:

1. SET DATE & TIME

2. SET PRINT MODE

3. SET 50/60 HZ

4. SET LANGUAGE

5. BLUETOOTH DEV RESET

6. PREVIOUS PAGE

Press the

[1] key (SET DATE & TIME).

d. The following screen will be displayed:

ENTER

mm-dd-yy hh:mm:ss

Enter the month, date, time, hours, minutes, and seconds (in 24-hour format) using the alpha-numeric keypad. When the last digit is entered, the clock will be set and you will be returned to the “START-UP” menu.

CT-7000 S3 USER’S MANUAL REV 1

3.2.3. Configuring Automatic or Manual Printing of Test Results

The CT-7000 S3 can be configured to print graphs and tabulated results automatically or manually after each test. To configure the printing method:

a. Start from the “START-UP” menu:

1. TIME BREAKER 09/12/13

2. GET RESULTS 10:10:10

3. SAVE/RESTORE

4. SETUP

5. DIAGNOSTICS

Press the [4] key (SETUP).

b. The following screen will be displayed:

1. ANALYSIS POINTS

2. MEASUREMENT UNITS

3. SHOT DESCRIPTION

4. NUMBER OF CHANNELS

5. NEXT PAGE

Press the [5] key (NEXT PAGE).

c. The following screen will be displayed:

1. SET DATE & TIME

2. SET PRINT MODE

3. SET 50/60 HZ

4. SET LANGUAGE

5. BLUETOOTH DEV RESET

6. PREVIOUS PAGE

Press the

[2] key (SET PRINT MODE).

d. The following screen will be displayed:

SET PRINT MODE:

1. AUTOMATIC PRINT

2. BY REQUEST ONLY

Press the

[1] key (AUTOMATIC PRINT) to automatically print test results after each test.

[2] key (BY REQUEST ONLY) to manually print test results after each test.

Please see section 3.3.5 for instructions on how to manually print test results.

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Vanguard CT-7000 S3 User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual