1 / 10

ZENSOL First Trip Monitoring

ZENSOL First Trip Monitoring. In addition to doing timing and motion on circuit breakers, our CBA-32P instruments are capable of doing on-line first trip monitoring. Here is an example of a real test in Alabama. BACK PAGE 1. NEXT. PREVIOUS. First Trip Monitoring.

levi-holland
Download Presentation

ZENSOL First Trip Monitoring

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. ZENSOLFirst Trip Monitoring In addition to doing timing and motion on circuit breakers, our CBA-32P instruments are capable of doing on-line first trip monitoring. Here is an example of a real test in Alabama. BACK PAGE 1 Zensol Automation Inc. NEXT PREVIOUS

  2. First Trip Monitoring • Real tests in Alabama (USA) Goal: To show that the CBA-32P is able to to do ON-LINE testing of breaker first trip. Control cabinet BACK PAGE 1 Zensol Automation Inc. NEXT PREVIOUS

  3. First Trip Monitoring • The challenge When doing first trip monitoring, the breaker is always « on line », which means that the breaker is not isolated during the test. Connecting the contacts is impossible because the current circulating is too high (thousands of amps). No need to open the sectionnor to isolate the breaker Contrary to classic timing tests, the trip test must be done without the help of the CBA-32P contacts. BACK PAGE 1 Zensol Automation Inc. NEXT PREVIOUS

  4. First Trip Monitoring • The solution The solution is to connect a current transducer directly on the output of the CTs. The principle is to measure the lowest current (5 amps) to know the evolution of the current and at the same time to guarantee the security of the operators. BACK PAGE 1 Zensol Automation Inc. NEXT PREVIOUS

  5. First Trip Monitoring • Test set-up To do on-line testing, To monitor the breaker first trip, the current transducer will be connected to the analog inputs of the CBA-32P. 0-10 Vcc analog inputs BACK PAGE 1 Zensol Automation Inc. NEXT PREVIOUS

  6. First Trip Monitoring • The first trip monitoring kit : KIT–Z-FT Interface Connected to one of the analog inputs of the CBA-32P Current transducer We use a current transducer working like a amperemetric clamp, but stronger. BACK PAGE 1 Zensol Automation Inc. NEXT PREVIOUS

  7. First Trip Monitoring • Installation of the current transducer Extension to connect the transducer to the CBA-32P Current transducers Interface BACK PAGE 1 Zensol Automation Inc. NEXT PREVIOUS

  8. First Trip Monitoring • Easy test procedure • Ground the CBA-32P • Connect the optic fiber link • Connect the command cable and the current transducer onto the control cabinet • Connect the current transducer to the analog inputs of the CBA-32P • turn on the CBA-32P and the CBA WIN software Command cable Fiber optic Power Ground Analog input BACK PAGE 1 Zensol Automation Inc. NEXT PREVIOUS

  9. First Trip Monitoring • Trip test 28,60 ms BACK PAGE 1 Zensol Automation Inc. NEXT PREVIOUS

  10. First Trip Monitoring In this example we only use 1 current transducer which measures 1 phase. You can measure the three phases simultaneously, in “one simple click of the mouse”, by connecting three current transducers. CBA-32P = On-line testing of breaker's first trip + Off-line testing (including timing & motion) All the tests are done according to the international standards IEC.56.3.105 Zensol Automation Inc.

More Related