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REV 1

 

CBCT USER’S MANUAL

 

 

4

 

 

 

 

 

 

1.3 

CBCT Controls and Indicators 

The CBCT’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 CBCT. 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. CBCT Controls and Indicators 

 

Содержание CBCT

Страница 1: ...CBCTTM CIRCUIT BREAKER COIL TESTER USER S MANUAL Vanguard Instruments Company Inc 1520 S Hellman Ave Ontario California 91761 USA TEL 909 923 9390 FAX 909 923 9391 August 2010 Revision 1 ...

Страница 2: ...BCT shall be used only by trained operators All devices under test shall be off line and fully isolated 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 CBCT test unit To ensure that all designed safety features are maintained it is highly recommended that repairs be performed...

Страница 3: ...8 2 3 CBCT Timer Start Input 9 2 4 CBCT Timer Stop Input 10 2 5 CBCT Timer Display 10 LIST OF FIGURES Figure 1 CBCT Controls and Indicators 4 Figure 2 CBCT Constant Output to CB Control Circuits 6 Figure 3 Direct Connection from CBCT Pulse Output to CB Trip Coil 7 Figure 4 Direct Connection from CBCT Pulse Output to CB Close Coil 7 Figure 5 Typical CBCT Timer Connection 9 LIST OF TABLES Table 1 CB...

Страница 4: ...lowing conventions A key switch or knob on the CBCT is indicated as KEY SWITCH and KNOB Menu names are referenced as MENU NAME CBCT LCD screen output is shown as Warning messages are indicated as WARNING Warning message Important notes are indicated as NOTE Note details MAIN MENU RUN TEST ...

Страница 5: ...The output voltage is programmable from 5 to 95 of the input voltage and is set using the dial on the front panel Output voltage regulation is better than 2 under load Two DC outputs are available on the CBCT The continuous DC output is capable of sourcing current up to 40 amperes The pulse DC output is capable of sourcing up to 80 amperes for up to 500 milli seconds Both outputs are protected aga...

Страница 6: ...99 999 seconds Accuracy 0 1 ms 1 digit TIMER START INPUT Internal coil initiation wet contact input 10 c 240 Vac dc or dry contact input 1 200 ohms TIMER STOP INPUT Wet contact 10 240 Vac dc or dry contact 1 200 ohms DISPLAY Back lit LCD screen 20 characters by 4 lines viewable in both bright sunlight and low light levels SAFETY Designed to meet UL 6101A 1 and CAN CSA C22 2 No 1010 1 92 standards ...

Страница 7: ...nctional 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 CBCT 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 ...

Страница 8: ...0 VDC DC voltage input 20 240 VDC 6 Fuse holder Use 200 Vdc 25A Littlefuse P N KLKR25 7 GROUND Ground stud Ground this terminal to sub station ground 8 RS 232C RS 232C PC interface for firmware upgrade and diagnostics 9 Back lit LCD screen 20 characters by 4 lines viewable in bright light and low light conditions 10 Timer Start mode selection switch 11 Timer Stop mode selection switch 12 Timer Sta...

Страница 9: ... below Figure 2 illustrates the CBCT Constant Output connection to the circuit breaker control circuit Figure 3 and Figure 4 illustrate the CBCT Pulse Output connection to the circuit breaker Trip and Close coil WARNING Always connect the CBCT ground stud to the sub station ground Figure 2 CBCT Constant Output to CB Control Circuits ...

Страница 10: ...CBCT USER S MANUAL REV 1 7 Figure 3 Direct Connection from CBCT Pulse Output to CB Trip Coil Figure 4 Direct Connection from CBCT Pulse Output to CB Close Coil ...

Страница 11: ...displayed on the LCD as shown below Output voltage is automatically set for 70 of the input voltage The constant output voltage indicator will be lit Turn the CONTROL KNOB to adjust the output voltage If the Constant output connection is being used the circuit breaker control circuit voltage is powered with the voltage displayed on the CBCT screen The circuit breaker is now ready to be operated by...

Страница 12: ...CBCT will output the preset voltage to the Pulse output terminals and start the timer Dry Contact Mode In this mode the timer will look for a change in the Start input terminals after the PULSE switch is pressed The CBCT will output a DC voltage to the Start input terminals to detect the dry contact status Wet Contact Mode In this mode the timer will look for a change in the Start input terminals ...

Страница 13: ...nput terminals to stop the timer The CBCT will output a DC voltage to the Stop Input terminals to detect the dry contact status Wet Contact Mode In this mode the timer will look for a change in the Stop Input terminals to stop the timer Under the wet contact mode the input is looking for a change in voltage or no voltage condition to stop the timer A voltage from 24 Vdc to 300 Vdc is considered as...

Страница 14: ...20 S Hellman Ave Ontario CA 91761 USA Phone 909 923 9390 Fax 909 923 9391 www vanguard instruments com Copyright 2009 by Vanguard Instruments Company Inc CBCT User s Manual Revision 1 0 August 18 2010 TA ...

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