1 / 9

1 st PCC issues for discussion

1 st PCC issues for discussion. Kudumkulam SPS Talcher –Kolar SPS Modification to Talcher inter trip scheme Talcher Islanding Grid incident 25 th March Talcher units tripping 5 th Jan Karnataka Islanding Other issues. KKPS SPS. KKPS Islanding proposal one. KKPS Islanding

lou
Download Presentation

1 st PCC issues for discussion

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. 1st PCC issues for discussion • Kudumkulam SPS • Talcher –Kolar SPS • Modification to Talcher inter trip scheme • Talcher Islanding • Grid incident • 25th March Talcher units tripping • 5th Jan Karnataka Islanding • Other issues

  2. KKPS SPS KKPS Islanding proposal one KKPS Islanding proposal one Logic Diag \kkps proposal proposal Two KKPS Islanding proposal Two Logic Diag KKPS Islanding Frequency Spinner UFR presentation RTN to Slide 1

  3. Talcher Kolar inter trip scheme RTN to Slide 1

  4. Talcher inter trip suggestions & Islanding issues Talcher inter trip Present Scheme Talcher inter trip Scheme Suggestion Talcher inter trip suggestion Table Talcher Islanding issues Slide 1

  5. Grid Incidents Kar Disturbance 05/07/2006.Network Kar Disturbance 05/07/2006.Network Kar Disturbance 5th July Report on Islanding in Issues of concern DF/DT and UFR Operation Talcher 25th March incident RTN to SLIDE1

  6. LINKS Other issues Rtn to slide 1

  7. Talcher Islanding • Considering the present operating condition Ramping of 300 to 500MW of power through HVDC required during Islanding • If SR’s Bilateral to /through ER increase then quantum of power to be ramped through HVDC will still increase during Islanding • What is the ramp rate at which the flow throw the HVDC link will raise • Co ordination with • turbine over speed protection may be required • controllers of HVDC • Sub synchronous resonance tuning • Capability of SR grid to suddenly absorb extra generation • Any tripping of generator at Talcher required if the quantum of Power to be ramped up, if islanded, is more • Can one unit of Talcher Stage II taken out to meet the auxiliary requirement • Should the units at Talcher un load to match the Pole Set point RTN

  8. Karnataka disturbance 05/07/2006 • Issues of concern : • Protection Issues • Non availability of digital data of 220KV stations of Karnataka has blurred the visibility to the operators in LDC’s • Non availability of time sequenced events from the substations is hampering the analysis of the incident. • Non survival of Kaiga unit 2 after it went in to House load. • Non availability of on line data from Kaiga generating station • Operational issues • Non regulation of generation in depleted network condition • Opening out the lines to control the voltage instead of generators supporting the grid by absorbing the VAR • Switching of 400KV elements with out Knowledge of RLDC Link page

  9. Other issues • Checking of healthiness of Inter trip scheme • Checking Time Synchronisation of RTU’s • Extending Digital Inputs to RTU’s • Configuring Database for Sequence of events • Reporting of disturbance in time • Reporting of DF/DT and UFR relay operations

More Related