Protective Elements
Commissioning: f< and DF/DT – Underfrequency and DF/DT
Object to be tested:
All frequency protection stages that are projected as f< and Df/Dt.
Necessary means:
Three-phase voltage source and
Frequency generator that can generate and measure a defined frequency change.
Procedure:
Testing the threshold values
Feed nominal voltage and nominal frequency to the device:
Decrease the frequency below the f< threshold and
Apply a defined frequency change (step change) that is above the setting value (example: apply a frequency
change of 1 Hz during the set time interval DT if the setting value DF is 0.8 Hz). The relay has to trip
immediately.
Successful test result
Permissible deviations/tolerances and dropout ratios can be taken from the Technical Data.
Commissioning: f> and DF/DT – Overfrequency and DF/DT
Object to be tested:
All frequency protection stages that are projected as f> and Df/Dt.
Necessary means:
Three-phase voltage source and.
Frequency generator that can generate and measure a defined frequency change.
Procedure:
Testing the threshold values
Feed nominal voltage and nominal frequency to the device:
Increase the frequency above the f> threshold and
Apply a defined frequency change (step change) that is above the setting value (example: apply a frequency
change of 1 Hz during the set time interval DT if the setting value DF is 0.8 Hz). The relay has to trip
immediately.
Successful test result:
Permissible deviations/tolerances and dropout ratios can be taken from the Technical Data.
870
MCDLV4
DOK-HB-MCDLV4-2E
Содержание HighPROtec MCDLV4
Страница 1: ...Manual Line Differential Protection MCDLV4 Software Version 3 4 a DOK HB MCDLV4 2E Revision A English...
Страница 3: ...Order Code Order Code 3 MCDLV4 DOK HB MCDLV4 2E...
Страница 47: ...Installation and Connection 47 MCDLV4 DOK HB MCDLV4 2E...
Страница 164: ...Input Output and LED Settings 164 MCDLV4 DOK HB MCDLV4 2E...
Страница 433: ...Parameters 433 MCDLV4 DOK HB MCDLV4 2E...
Страница 457: ...Device Parameters 457 MCDLV4 DOK HB MCDLV4 2E...
Страница 473: ...Blockings 473 MCDLV4 DOK HB MCDLV4 2E...
Страница 822: ...Protective Elements Name Description Profibus Scada Cmd 16 Scada Command 822 MCDLV4 DOK HB MCDLV4 2E...
Страница 988: ...Protective Elements 988 MCDLV4 DOK HB MCDLV4 2E P P Q P Q P Q Q Q P S S...
Страница 989: ...Protective Elements 989 MCDLV4 DOK HB MCDLV4 2E Pr Q P Q P Qr...
Страница 1023: ...Protective Elements 1023 MCDLV4 DOK HB MCDLV4 2E...
Страница 1070: ...Supervision 1070 MCDLV4 DOK HB MCDLV4 2E...