2.Dynamictesting Chennai Seminar

7/24/2019 2.Dynamictesting Chennai Seminar

1/17

Knowledge IsPowerSMApparatus Maintenance and Power Management

for Energy Delivery

Dynamic State Simulation Tests

Jay Gosalia


2/17

Knowledge IsPower

SM

Apparatus Maintenance and Power Management

for Energy Delivery

Why Dynamic Testing?

Why ? How ? When? What? What's the purpose?

Benefits of the tests?

When do I do the test?

How do I do the tests?

What's wrong with the routing well proven test

ethodology?

Is it faster! "etter and eaningful?


3/17

Knowledge IsPower

SM


for Energy Delivery

Why Dynamic Testing?

#ewer Prote$tion s$hees are ore %ople&

Powerful

More fle&i"le

More $ustoia"le

(iffi$ult to test with the siple routing tests

(ynai$ testing provides

Meaning full testing %ustoied tests to $he$) the whole s$hee or

a spe$ifi$ fun$tion


4/17

Knowledge IsPower

SM


for Energy Delivery

Meaningful Testing

Modern prote$tion s$hees arevery $ople&! fle&i"le yet powerful

*esting "e$oes very $ople&

+ More then ,--- settings on line

prote$tion s$hee is very$oon

(ifferent anufa$turers ipleent

things differently

+ .arge do$uentation /ser is not always failiar with all the

$ustoied s$hees and setting


5/17

Knowledge IsPower

SM


for Energy Delivery

Special Features

Modern line prote$tion s$hee 0oltage transforer supervision

%urrent transforer supervision

Meory for 1 phase faults on the line

%ross polaried2eory polaried s$hees

%ople& $ouni$ation s$hee

+ 3one , e&tension s$hee


6/17

Knowledge IsPower

SM


for Energy Delivery

Meaningful Testing

Trip/Control

Protection


7/17Knowledge IsPower

SM


for Energy Delivery

Meaningful Testing

Trip/Control

Protection

Simulate Power System Events tocheck the performance of theprotection scheme without getting into the protection settings



SM


for Energy Delivery

Meaningful Testing

Trip/Control

Protection

Simulate Power System Events to

check:VT supervisionCross/memory polarizationCommunication schemeMemory check



SM


for Energy Delivery

Dynamic Testing : How?

State siulation a$ro is an ideal tool4vents need to defined in ters of series of

power syste states

4a$h state defines value 5aplitude! Phase

and fre6uen$y7 of analog 6uantities 0alue of 1 phase voltage and $urrents

(uration of ea$h state

4&8 of 1 phase fault in ters of three states Pre9flt8 "alan$e 1 ph8 volt8 : load $urrents; 1- $y

1 ph8



SM


for Energy Delivery

3 Phase Fault : State Simulation

Pre-Fault

Load Condition

Fault

3 Phase Fault

Post-Fault

Breaker Open

0 30 35 95Cycles



SM


for Energy Delivery

VT Superision : State Simulation

Pre-Fault

Load Condition

Phase A

Fuse Blos

B-!

Fault

0 "0 #$0 #$5Cycles



SM


for Energy Delivery


Pre-Fault

Load Condition

Phase A

Fuse Blos

B-!

Fault

0 "0 #$0 #$5Cycles

ProtectionTrip locke!


14/17

Knowledge IsPowerSM


for Energy Delivery


Pre-Fault

Load Condition

Phase A

Fuse Blos

B-!

Fault

0 "0 %"0 %"5Cycles



SM


for Energy Delivery


Pre-Fault

Load Condition

Phase A

Fuse Blos

B-!

Fault

0 "0 %"0 %"5Cycles

ProtectionTrippe! "#



SM


for Energy Delivery

Demo : ProtesT

%reating State siulation file for

Swit$h on to fault Prote$tion 5S=*

Grounding $hains are $onne$ted for wor)

@fter $opletion of wor) $hains are not reoved+ %lose "rea)er siulates 1 phase fault

+ Brea)er trip instantaneously

3one , 4&tension s$hee

+ .oad $ondition ; State ,

+ @9G fault for one > ; prote$tion trip inst8; State >

+ Ae$losing relay starts ; @AIP to Prote$tion ; State 1

+ Brea)er $loses on 3one > fault ; state ; #o inst8 trip


17/17

Knowledge IsPowerSM


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2.Dynamictesting Chennai Seminar