Селективност на
струјна заштита во
високонапонски
мрежи
www.lekselektrik.com.mk
Voved
www.lekselektrik.com.mk
Voved
i
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Voved
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Kriva na reagirawe na termomagnetna za{tita
Tripping graphs
F1
2h
MC1B A100
In = 100A
Ir = 100A
Ii = 1000A
1h
Schrack CurveSelect V 1.00
20min
General specifications:
Com pany: Leks Elektrik
10min
Installation: Info Denovi 2013
5min
Editor: Mico Bojarovski
Date: 16 10 2013
2min
Line: 400 V / 50 cps
Tripping time
1min
20s
10s
5s
2s
1s
500ms
200ms
100ms
50ms
20ms
10ms
5ms
2ms
1ms
1 1.2 1.5
2
2.5 3
4
5
7
Schrack does not bear any warranty of accuracy.
Liability is excluded except in cases of wilful intent.
www.lekselektrik.com.mk
10 12
15
20
25 30
40
50
70
100 120 150 200 250 300
400 500
Current [Amps]
700
1k 1,2k 1,5k
2k 2,5k 3k
4k
5k
7k
10k 12k 15k
20k 25k 30k
40k 50k
70k
100k
Kriva na reagirawe na topliv patron
Tripping graphs
F2
2h
gG
63A
1h
Schrack CurveSelect V 1.00
20min
General specifications:
Com pany: Leks Elektrik
10min
Installation: Info Denovi 2013
5min
Editor: Mico Bojarovski
Date: 16 10 2013
2min
Line: 400 V / 50 cps
Tripping time
1min
20s
10s
5s
2s
1s
500ms
200ms
100ms
50ms
20ms
10ms
5ms
2ms
1ms
1 1.2 1.5
2
2.5 3
4
5
7
Schrack does not bear any warranty of accuracy.
Liability is excluded except in cases of wilful intent.
www.lekselektrik.com.mk
10 12
15
20
25 30
40
50
70
100 120 150 200 250 300
400 500
Current [Amps]
700
1k 1,2k 1,5k
2k 2,5k 3k
4k
5k
7k
10k 12k 15k
20k 25k 30k
40k 50k
70k
100k
Tipovi na strujna za{tita
www.lekselektrik.com.mk
Tipovi na strujna za{tita
Avtomatski osiguruva~
Tripping graphs
F1
MCB
C 32
In = 32A
2h
1h
Schrack CurveSelect V 1.00
20min
General specifications:
Com pany: Leks Elektrik
10min
Installation: Info Denovi 2013
5min
Editor: Mico Bojarovski
Date: 16 10 2013
2min
Line: 400 V / 50 cps
Tripping time
1min
20s
10s
5s
2s
1s
500ms
200ms
100ms
50ms
20ms
10ms
5ms
2ms
1ms
1 1.2 1.5
2
2.5 3
4
5
7
Schrack does not bear any warranty of accuracy.
Liability is excluded except in cases of wilful intent.
www.lekselektrik.com.mk
10 12
15
20 25 30
40
50
70
100 120 150 200 250 300
400 500
Current [Amps]
700
1k 1,2k 1,5k
2k 2,5k 3k
4k
5k
7k
10k 12k 15k
20k 25k30k
40k 50k
70k
100k
Tipovi na strujna za{tita
Motorna za{tita tip BES
Tripping graphs
F1
2h
• Ir= 0. 7In-1In
F1
BE5-20
BE5-20
In = 20A
In = 20A
Ir = 16.0A
Ir = 20.0A
Irm = Irm
280A
= 280A
1h
Schrack CurveSelect V 1.00
20min
General specifications:
Com pany: Leks Elektrik
10min
Installation: Info Denovi 2013
5min
Editor: Mico Bojarovski
Date: 16 10 2013
2min
Line: 400 V / 50 cps
Tripping time
1min
20s
10s
5s
2s
1s
500ms
200ms
100ms
50ms
20ms
10ms
5ms
2ms
1ms
1 1.2 1.5
2
2.5 3
4
5
Schrack does not bear any warranty of accuracy.
Liability is excluded except in cases of wilful intent.
www.lekselektrik.com.mk
7
10 12
15
20
25 30
40
50
70
100 120 150 200 250 300
400 500
Current [Amps]
700
1k 1,2k 1,5k
2k 2,5k 3k
4k
5k
7k
10k 12k 15k
20k 25k 30k
40k 50k
70k
100k
Tipovi na strujna za{tita
Rastavuva~ tip NV (патрон тип gG)
Tripping graphs
F2
2h
gG
63A
1h
Schrack CurveSelect V 1.00
20min
General specifications:
Com pany: Leks Elektrik
10min
Installation: Info Denovi 2013
5min
Editor: Mico Bojarovski
Date: 16 10 2013
2min
Line: 400 V / 50 cps
Tripping time
1min
20s
10s
5s
2s
1s
500ms
200ms
100ms
50ms
20ms
10ms
5ms
2ms
1ms
1 1.2 1.5
2
2.5 3
4
5
7
Schrack does not bear any warranty of accuracy.
Liability is excluded except in cases of wilful intent.
www.lekselektrik.com.mk
10 12 15
20
25 30
40 50
70
100 120 150 200 250300
400 500
Current [Amps]
700
1k 1,2k 1,5k
2k 2,5k 3k
4k
5k
7k
10k 12k 15k
20k 25k30k
40k 50k
70k
100k
Tipovi na strujna za{tita
Kompakten prekinuva~ na mo}nost tip MC
MC
1
B
-
-
2
N N
-
3
H PN
4
X
4
- A
AE
VE
M
ME
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Definicija na
parametri
1. Ir / n x In
2. tr / s ( 5 x In )
3. Isd / n x Ir
4. tsd ( 0 – 1000ms )
5. Ii ( n x In )
6. I2 t
7. Ig / n x In ( n=0.3-1In )
8. t ( 0 – 1000ms )
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Tipovi na strujna za{tita
Vozdu{en prekinuva~ na mo}nost tip MO
Vozdu{en prekinuva~ na mo}nost tip MO
golemina 1 , za strui Ir = 800A - 1600A
Vozdu{en prekinuva~ na mo}nost tip MO
golemina 2 , za strui Ir = 800A - 3200A
Vozdu{en prekinuva~ na mo}nost tip MO
golemina 3 , za strui Ir = 4000A - 6300A
www.lekselektrik.com.mk
Vozdu{en prekinuva~ na mo}nost tip MO
Electronic release ETU 15 B
www.lekselektrik.com.mk
Vozdu{en prekinuva~ na mo}nost tip MO
Electronic release ETU 25 B
www.lekselektrik.com.mk
Vozdu{en prekinuva~ na mo}nost tip MO
Electronic release ETU 27 B
www.lekselektrik.com.mk
Vozdu{en prekinuva~ na mo}nost tip MO
Electronic release ETU 45 B
www.lekselektrik.com.mk
Vozdu{en prekinuva~ na mo}nost tip MO
Electronic release ETU 55 B
www.lekselektrik.com.mk
Vozdu{en prekinuva~ na mo}nost tip MO
Electronic release ETU 76 B
www.lekselektrik.com.mk
Definicija za selektivnost
soglasno IEC 60 947-1; Part – 1 :
glavni pravila za niskonaponska oprema
Koordinacijata na krivite na reagirawe
pome|u dve ili pove}e strujni za{titi, vo
opseg na preoptovaruvawe , treba da e takva
{to predodredenata za{tita (na stranata na
potro{uva~ot) reagira prva dodeka
ostanatite nesmeat da reagiraat *
* Sloboden prevod na standardot
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Definicija za potpolna i parcijalna selektivnost
soglasno IEC 60 947-1;Part – 2 : glavni pravila za
niskonaponska oprema
Potpolna selektivnost
Pri postavenost na dve strujni za{titi
vo serija, za{titata na strana na
potro{uva~ot obezbeduva za{tita
(reagira) bez pritoa da ovozmo`i
reagirawe na za{titata na strana na
napojuvaweto *
* Sloboden prevod na standardot
www.lekselektrik.com.mk
Definicija za potpolna i parcijalna selektivnost
soglasno IEC 60 947-1;Part – 2 : glavni pravila za
niskonaponska oprema
Parcijalna selektivnost
Pri postavenost na dve strujni za{titi vo
serija, za{titata na strana na potro{uva~ot
obezbeduva za{tita (reagira) do opredeleno
nivo na prekustruja, bez pritoa da ovozmo`i
reagirawe na za{titata na strana na
napojuvaweto *
* Sloboden prevod na standardot
www.lekselektrik.com.mk
Potpolna
selektivnost
Parcijalna
selektivnost
www.lekselektrik.com.mk
www.lekselektrik.com.mk
www.lekselektrik.com.mk
Selektivnost na topliv patron (gG) vo
odnos na topliv patron (gG)
www.lekselektrik.com.mk
Selektivnost na termomagnetna
za{tita vo odnos na topliv patron
www.lekselektrik.com.mk
Selektivnost na topliv patron vo
odnos na termomagnetna za{tita
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Tehniki za selektivnost
Tripping graphs
F1
2h
MC1B A100
In = 100A
Ir = 100A
Ii = 1000A
Vo opseg na preopteretuvawe
1h
Schrack CurveSelect V 1.00
20min
General specifications:
Com pany: Leks Elektrik
10min
Installation: Info Denovi 2013
5min
Editor: Mico Bojarovski
Date: 16 10 2013
2min
Line: 400 V / 50 cps
Tripping time
1min
20s
10s
* Strujno-vremenska selektivnost
5s
2s
1s
500ms
200ms
100ms
50ms
20ms
10ms
5ms
2ms
1ms
Vo opseg na kratok spoj
1 1.2 1.5
2
2.5 3
4
5
7
10 12
15
20
25 30
40
50
70
100 120 150 200 250 300
Schrack does not bear any warranty of accuracy.
Liability is excluded except in cases of wilful intent.
400 500
700
1k 1,2k 1,5k
2k 2,5k 3k
4k
5k
7k
20k 25k 30k
40k 50k
70k
100k
Tripping graphs
F1
2h
MC1B A100
In = 100A
Ir = 100A
Ii = 1000A
1h
Schrack CurveSelect V 1.00
20min
General specifications:
Com pany: Leks Elektrik
10min
Installation: Info Denovi 2013
5min
Editor: Mico Bojarovski
Date: 16 10 2013
2min
Line: 400 V / 50 cps
1min
Tripping time
* Strujna selektivnost
* Vremenska selektivnost
* Energetska selektivnost
10k 12k 15k
Current [Amps]
20s
10s
5s
2s
1s
500ms
200ms
100ms
50ms
20ms
10ms
5ms
2ms
1ms
1 1.2 1.5
2
2.5 3
4
5
Schrack does not bear any warranty of accuracy.
Liability is excluded except in cases of wilful intent.
www.lekselektrik.com.mk
7
10 12
15
20
25 30
40
50
70
100 120 150 200 250 300
400 500
Current [Amps]
700
1k 1,2k 1,5k
2k 2,5k 3k
4k
5k
7k
10k 12k 15k
20k 25k 30k
40k 50k
70k
100k
Tehniki za selektivnost
Vo opseg na preopteretuvawe
Tripping graphs
F1
2h
MC1B A100
In = 100A
Ir = 100A
Ii = 1000A
1h
Schrack CurveSelect V 1.00
20min
General specifications:
Strujno - vremenska
selektivnost
Com pany: Leks Elektrik
10min
Installation: Info Denovi 2013
5min
Editor: Mico Bojarovski
Date: 16 10 2013
2min
Line: 400 V / 50 cps
Tripping time
1min
20s
10s
5s
2s
1s
500ms
200ms
100ms
50ms
20ms
10ms
5ms
2ms
1ms
1 1.2 1.5
2
2.5 3
4
5
Schrack does not bear any warranty of accuracy.
Liability is excluded except in cases of wilful intent.
www.lekselektrik.com.mk
7
10 12
15
20
25 30
40
50
70
100 120 150 200 250 300
400 500
Current [Amps]
700
1k 1,2k 1,5k
2k 2,5k 3k
4k
5k
7k
10k 12k 15k
20k 25k 30k
40k 50k
70k
100k
IA= 1.05 x In
Soglasno IEC 60 947 - 2 koeficientot 1.05
definira
maksimalnata struja pri koja za{titata ne reagira
IB= 1.20 x In
Soglasno IEC 60 947 - 2 koeficientot 1.20
definira
minimalnata struja pri koja za{titata nreagira
tA > tB , uslov za selektivnost
www.lekselektrik.com.mk
Tehniki za selektivnost
Vo opseg na kratok spoj
Tripping graphs
F1
2h
MC1B A100
In = 100A
Ir = 100A
Ii = 1000A
1h
Strujna selektivnost
Schrack CurveSelect V 1.00
20min
General specifications:
Com pany: Leks Elektrik
10min
Installation: Info Denovi 2013
5min
Editor: Mico Bojarovski
Date: 16 10 2013
2min
Line: 400 V / 50 cps
Tripping time
1min
20s
10s
5s
2s
1s
500ms
200ms
100ms
50ms
20ms
10ms
5ms
2ms
1ms
1 1.2 1.5
2
2.5 3
4
5
Schrack does not bear any warranty of accuracy.
Liability is excluded except in cases of wilful intent.
www.lekselektrik.com.mk
7
10 12
15
20
25 30
40
50
70
100 120 150 200 250 300
400 500
Current [Amps]
700
1k 1,2k 1,5k
2k 2,5k 3k
4k
5k
7k
10k 12k 15k
20k 25k 30k
40k 50k
70k
100k
I minA > 1kA
I maxB < 1kA
Is = I minA , uslov za selektivnost
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Tehniki za selektivnost
Vo opseg na kratok spoj
* Vremenska selektivnost
Is = I minA , uslov za selektivnost
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Tehniki za selektivnost
Vo opseg na kratok spoj
* Energetska selektivnost
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* Tabelarna analiza
* Grafi~ka analiza
Curve Select
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* Tabelarna analiza
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Curve
select
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Zaklu~ok :
* Baraweto za selektivnost go definira investitorot
* Za uspe{na definicija na tipot i parametrite na
za{titata, potrebno e predhodno definirawe na :
- realnite rabotni strui
- struite vo pretovar
- struite vo kratok spoj
* Za uspe{na selektivnost mo`e da se koristat :
- tabelarna analiza
- grafi~ka analiza
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Vi blagodaram na vnimanieto
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Мрежна
технологија
Мијаило Милошевиќ
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