Vanguard CT-7000 - Manual (Page 56)

CT-7000 Operating Instructions
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9.12 Circuit Breaker Test Plan
A circuit breaker test plan contains breaker maximum/minimum operating parameters. A
typical list of operating parameters is show as follows:
• Max/Min Contact/Resistor Trip Time.
• Max/Min Contact/Resistor Close Time.
• Max Contact Spread Time.
• Max Resistor Contact Spread Time.
• Max/min Contact Close-Open Time.
• Max/min Contact Open-Close Time.
• Max/min Resistor Close-Open Time.
• Max/min Resistor Open-Close Time.
•
Max/Min Breaker Stroke.
• Max/Min Breaker Trip Velocity.
• Max/Min Breaker Close Velocity.
• Max/Min Breaker Over Travel.
• Max/Min Breaker Bounce Back.
•
Trip Velocity Analysis Calculation Points.
• Close Velocity Analysis Calculation Points.
The user can create a circuit breaker test plan using the CT-7000 Breaker Analysis Software.
Up to 99 circuit breaker test plan can be downloaded into the CT-7000. A test plan can be
replaced by simply downloading a new test plan into the existing one.
If a timing test is executed with a breaker test plan, the timing report will also display a
Pass/Fail status for each of the parameters tested.
9.13 Recall a Breaker Test Plan
Recalling a test plan allows the user to bring the breaker Pass/Fail parameters or operating
limits to memory. Since the breaker test plan contains analysis points and any velocity calculation
formula, there is no setting required for the CT-7000.
After recalling the breaker test plan, the user can immediately test circuit breaker and view
timing report.
Table 17.0 Recalling a Test Plan
STEP OPERATION ACTION DISPLAY
1 SELECT SET UP MENU. PRESS # 3 KEY. 1. ANALYSIS POINT
2. MEASUREMENT UNITS
3. SAVE / RESTORE
4. NEXT PAGE
2 SELECT ANALYSIS POINT. PRESS # 1 KEY. 1. OPEN TIMING
2. CLOSE TIMING
3. PRINT SETTING
4. TEST PLAN
3 SELECT TEST PLAN. PRESS # 4 KEY. 1. LOAD TEST PLAN
2. PRINT TEST PLAN
3. PRINT DIRECTORY