Upload
terezkam
View
410
Download
15
Embed Size (px)
DESCRIPTION
testing of alstom kbch differential relay
Citation preview
Knowledge Is PowerSM
Apparatus Maintenance and Power Management for Energy Delivery
Brief Introduction for Automated Relay Testing
Kamin DaveApplication Engineer (Protective Relaying)
DOBLE ENGINEERING COMPANY
Knowledge Is PowerSM
Apparatus Maintenance and Power Management for Energy Delivery
Protection Relay Testing:
Testing of Differential Protection Relay type KBCH120
Knowledge Is PowerSM
Apparatus Maintenance and Power Management for Energy Delivery
Relay Details: KBCH120
Two Differential Protection relaysAutomatic calculation for TAP values based on CTRSettings for Transformer & CT vector group compensations 2nd Harmonic Blocking during inrush period due to point on wave switching
Inrush Gap Detection Criterion
5th Harmonic Blocking for Over excitation phenomenaInverse Time Over Excitation Trip Characteristic
Knowledge Is PowerSM
Apparatus Maintenance and Power Management for Energy Delivery
Relay Details: KBCH120MAKE : AREVAMODEL : KBCH120Relay Settings:Differential Element:
Rated MVA = 100HV = 220KVLV = 66KVTR VECTOR GROUP = YY0.CT CONNECTION = YYID> = 0.2PUTurn Point1 = 1.0PUID>> = 5.0PUSLP1 = 20% SLP2 = 80%In = 1A
Knowledge Is PowerSM
Apparatus Maintenance and Power Management for Energy Delivery
Relay Details: KBCH120MAKE : AREVAMODEL : KBCH120Relay Settings:Differential Element:
HV CT Ratio = 300/1ALV CT Ratio = 1200/1ACF1 = 1.14CF2 = 1.37HV Vector Correction = YY0LV Vector Correction = YY0
Knowledge Is PowerSM
Apparatus Maintenance and Power Management for Energy Delivery
Relay Details: KBCH120
FLC on TR Primary side:IFLC = (100*1000) / (1.7325*220)
= 262.36 AmpereFLC on TR Secondary side:
IFLC = (100*1000) / (1.7325*66)= 874.54 Ampere
CF1 = (1*300) / (262.36*1) = 1.14
CF2 = (1*1200) / (874.54*1) = 1.37
Knowledge Is PowerSM
Apparatus Maintenance and Power Management for Energy Delivery
Relay Characteristic: Dual Slope
Knowledge Is PowerSM
Apparatus Maintenance and Power Management for Energy Delivery
Relay Characteristic: Dual Slope
Idiff@SLP1 = (IBIAS)*(0.2) + (IS)
Idiff@SLP2 = (IS) + 0.2 + (Ibias - 1)*0.8
Knowledge Is PowerSM
Apparatus Maintenance and Power Management for Energy Delivery
Test Equipment
• Make : DOBLE
• Model : F6150
Software
• F6TesT Version 2.18-1028
Knowledge Is PowerSM
Apparatus Maintenance and Power Management for Energy Delivery
Knowledge Is PowerSM
Apparatus Maintenance and Power Management for Energy Delivery
IA
IB
IC
I1
I2
I3
KBCH
Test Circuit:
Source Configurations:Six current sources
Winding 1 currents
Winding 2 currents
Knowledge Is PowerSM
Apparatus Maintenance and Power Management for Energy Delivery
• Pickup test for Winding1
• Pickup test for winding2
• Slope Characteristic test
Tests conducted:
Knowledge Is PowerSM
Apparatus Maintenance and Power Management for Energy Delivery
Winding Pickup Test
Use “RAMP” Module
Knowledge Is PowerSM
Apparatus Maintenance and Power Management for Energy Delivery
Winding Pickup Test:Pickup Test for Winding1 (WDG1):-Ipickup = (IS)*(1/CF1)
= (0.2)*0.8745= 0.1749A
Pickup Test for Winding2 (WDG2):-Ipickup = (IS)*(1/CF2)
= (0.2)*0.7287 = 0.1457A
Knowledge Is PowerSM
Apparatus Maintenance and Power Management for Energy Delivery
Winding Pickup Test:
How to Create Test Plan???
Knowledge Is PowerSM
Apparatus Maintenance and Power Management for Energy Delivery
Location Level
Add new Location or Double click on Existing Location
Knowledge Is PowerSM
Apparatus Maintenance and Power Management for Energy Delivery
Relay Level
Add new Relay or Double click on Existing Relay
Knowledge Is PowerSM
Apparatus Maintenance and Power Management for Energy Delivery
Right click on Mouse & Press “Append”& create New Testplan
Knowledge Is PowerSM
Apparatus Maintenance and Power Management for Energy Delivery
Double click on “New test Plan”
Knowledge Is PowerSM
Apparatus Maintenance and Power Management for Energy Delivery
Right click on “Mouse” & Press on “Append”& Create new Test Module
Knowledge Is PowerSM
Apparatus Maintenance and Power Management for Energy Delivery
Select “RAMP” Module from list
Knowledge Is PowerSM
Apparatus Maintenance and Power Management for Energy Delivery
Press on “OK” & Create New Test Definition
Knowledge Is PowerSM
Apparatus Maintenance and Power Management for Energy Delivery
Select “6 Currents (Right bank)”
Knowledge Is PowerSM
Apparatus Maintenance and Power Management for Energy Delivery
Press on “Yes”
Knowledge Is PowerSM
Apparatus Maintenance and Power Management for Energy Delivery
WDG1 current sources
Enter Expected Value = 0.175A
Enter “Action”details
Select “Trigger”
Knowledge Is PowerSM
Apparatus Maintenance and Power Management for Energy Delivery
Pickup Test: WDG1
Actual Test value = 0.197A
Click on “RUN”
Knowledge Is PowerSM
Apparatus Maintenance and Power Management for Energy Delivery
WDG2 current sources
Enter Expected Value = 0.165A
Enter “Action”details
Select “Trigger”
Knowledge Is PowerSM
Apparatus Maintenance and Power Management for Energy Delivery
Pickup Test: WDG2
Actual Test value = 0.167A
WDG2 current sources
Knowledge Is PowerSM
Apparatus Maintenance and Power Management for Energy Delivery
Slope Characteristic Test
Use “DiffChar” Module
Knowledge Is PowerSM
Apparatus Maintenance and Power Management for Energy Delivery
Slope Characteristic Test:
Star conn. Star conn.
IP Is
Knowledge Is PowerSM
Apparatus Maintenance and Power Management for Energy Delivery
How to Create Slope Characteristic???
Knowledge Is PowerSM
Apparatus Maintenance and Power Management for Energy Delivery
Click on “Add” & select “Differential”
Knowledge Is PowerSM
Apparatus Maintenance and Power Management for Energy Delivery
Select Bias current (Ibias) formula from list
Bias current Formula:Ibias = (IP+IS) / 2
Knowledge Is PowerSM
Apparatus Maintenance and Power Management for Energy Delivery
R
YY0 YY0
Star conn. Star conn.YY0
SoftwareConfiguration
Amplitude Compensation
Knowledge Is PowerSM
Apparatus Maintenance and Power Management for Energy Delivery
Click on “Pickup” Column & then after Click on “Modify”
Knowledge Is PowerSM
Apparatus Maintenance and Power Management for Energy Delivery
Enter Pickup settingSay; 0.2
Select IBias Vs Idiff
Knowledge Is PowerSM
Apparatus Maintenance and Power Management for Energy Delivery
Enter Slope 20% & 80% based on relay setting
SLP1=20%
SLP2=80%
How to AdjustSlope?
Knowledge Is PowerSM
Apparatus Maintenance and Power Management for Energy Delivery
Click on “Close”
Knowledge Is PowerSM
Apparatus Maintenance and Power Management for Energy Delivery
Right click on “Mouse”& click on “Append”
How to create New Test Module?
Knowledge Is PowerSM
Apparatus Maintenance and Power Management for Energy Delivery
How to create New Test Module?
Select “DiffChar” Module from list
Knowledge Is PowerSM
Apparatus Maintenance and Power Management for Energy Delivery
Double Click on Test Module & create New Test Definition
Knowledge Is PowerSM
Apparatus Maintenance and Power Management for Energy Delivery
Select characteristic from list
Knowledge Is PowerSM
Apparatus Maintenance and Power Management for Energy Delivery
Select elements
Knowledge Is PowerSM
Apparatus Maintenance and Power Management for Energy Delivery
Enter Max. Test current (i.e. 12A)
Knowledge Is PowerSM
Apparatus Maintenance and Power Management for Energy Delivery
Select Trigger (i.e. Open to Close)
Knowledge Is PowerSM
Apparatus Maintenance and Power Management for Energy Delivery
Select test points on curve
Knowledge Is PowerSM
Apparatus Maintenance and Power Management for Energy Delivery
click on Add Point to List
Knowledge Is PowerSM
Apparatus Maintenance and Power Management for Energy Delivery
Test Points are added for Test
Knowledge Is PowerSM
Apparatus Maintenance and Power Management for Energy Delivery
Right click on check box
Right Click on check box
Knowledge Is PowerSM
Apparatus Maintenance and Power Management for Energy Delivery
Click on “RUN”
Knowledge Is PowerSM
Apparatus Maintenance and Power Management for Energy Delivery
Red color shows Expected Curve & White color shows actual Curve
Test results
Knowledge Is PowerSM
Apparatus Maintenance and Power Management for Energy Delivery
DOBLE ENGINEERING COMPANY305-SAKAR, O.P. ROADNR. ABS TOWERVADODARA-390 015INDIA. Tel:- +91 265 655 77 15EMAIL ID:- [email protected]:- www.doble.com