1. Lightning and Surge Protection according to EN 50539 standard
DEHN + SÖHNE
Lightning and Surge Protection according to EN standard
VAL general short SEMINAR JAN 2016

3. DEHN + SÖHNE DEHN PROTECTS
VAL general short SEMINAR JAN 2016

4. REASON OF SEASONS
GOD SUN CREATES SEASONS , SUNSHINE , CLOUDS , RAIN , WIND , STORMS AND THUNDERSTORMS….. (SOURCE - ADITYAHRIDYA SROTRAM) A SOLAR PLANT HAS TO WITHSTAND ALL THE SEASONS IN EXPECTED LIFE TIME AND STILL SHOW THE DESIRED OUTPUT.

5. SEASONS
GOD SUN CREATES SEASONS , SUNSHINE , COULDS, RAIN , STORMS AND THUNDERSTORMS….. (SOURCE - ADITYAHRIDYA SROTRAM) ROI IS CALCULATED BASED UPON AN EXPECTED DEGRDATAION BUT DISASTERS ARE NOT COUNTED FOR— PROTECTION AGAINST RISKS OF NATURAL DISASTERS IS REQUIRED.

6. We are world leaders in the field of : Lightning protection
DEHN History
DEHN + SÖHNE is an innovative, globally operating family-owned company with more than 100 years of experience and tradition.
We are world leaders in the field of :
Lightning protection
Surge Protection
Human Safety

7. VAL general short SEMINAR JAN 2016
KULLU MANALI
VAL general short SEMINAR JAN 2016

8. VAL general short SEMINAR JAN 2016

9. VAL general short SEMINAR JAN 2016

10. VAL general short SEMINAR JAN 2016

11. VAL general short SEMINAR JAN 2016

12. Bijlee Mahadev @ 2480 m from sea level

13. VAL general short SEMINAR JAN 2016

14. VAL general short SEMINAR JAN 2016
Lightning current damage to a meter distribution cabinet: Destroyed main circuit breaker and RCCB
detail A
detail A
detail B
detail B
VAL general short SEMINAR JAN 2016
/ 6410_E_1

15. Surge damage Destroyed electronic component
VAL general short SEMINAR JAN 2016
/ 6431_E_1

16. Why is lightning protection essential ?
Required by Indian and international lightning protection standard (IS/ IEC x including risk assessment) FOR HUMAN SAFETY AND PROTECTION OF EQUIPMENT/SERVICES
Disastrous damages in the past in several areas in the world
NATIONAL BUILDING CODE – NBC 2016
Requirement by Indian BIS standards and also in National Electrical Code
VAL general short SEMINAR JAN 2016

17. Basics: Comparison of test currents inside the building
Photovoltaik Seminar - Überspannungsschutz 2
8/20 5
0,1
0.4 ·103
IEC 1
100 kA
Wave form µs
i max. kA
Q As
W/R J/
Standard
10/350
100 50
2.5 ·106
IEC
I (kA)
80 kA
60 kA
50 kA
40 kA 1
20 kA
20 µs
200 µs
350 µs
600 µs
800 µs
1000 µs
t (µs)
VAL general short SEMINAR JAN 2016
PV_ÜSS.ppt / 2005

19. Damage statistics photovoltaics Frequency of causes
Photovoltaik Seminar - Blitzschäden
Damage which has been settled by a German solar insurance company between 2003 and 2005
according to quantity
Source: Mannheimer Versicherung 2006
PV_Schaeden.ppt / 2005

20. Photovoltaik Seminar - Blitzschäden
Damaged PV modules due to lightning strike
Photovoltaik Seminar - Blitzschäden
A SOLAR PV PLANT IN INDIA
PV_Schaeden.ppt / 2005

21. DAMAGES IN RAJASTHAN

22. Lightning Protection System as per National Building Code 2016

23. NBC: Air Termination System
CLEAR NO to RADIOACTIVE air terminals
or other kind like ESE/Dissipation/CSE X X X

24. 5th RE, India 2011 lightning protection photovoltaic
External lightning protection - Rolling sphere method used to design an air-termination system
GJB
230 / 400 V
SEB
GJB = generator junction box SEB = service entrance box MEB = main earthing busbar
MEB
5th RE, India 2011 lightning protection photovoltaic
/ S6695e_i

25. Design of the air-termination system
radius of the rolling sphere depending on the class of LPS 
protection angle
separation distance s
air-termination rod
shadow line
15°
5th RE, India 2011 lightning protection photovoltaic
/ 4025e

26. 5th RE, India 2011 lightning protection photovoltaic
Lightning protection system – separation distance kept with air-termination rods
Beitrag - Autor
Source: D. Salansky Luma Plus s.r.o (CZ)
5th RE, India 2011 lightning protection photovoltaic
/ 6454_c
5. Forum für Sachverständige, 08. /

28. Galvanic coupling Lightning voltage of a system
Class of LPS Current amplitude kA
I 200
II 150
III - IV 100 i t î
Wave form 10 / 350 µs
Reference: DIN EN (VDE )
ûE = î · Rst EB
Example:
ûE = 100 kA · 1  = 100 kV
Rst

29. Galvanic coupling Lightning voltage in a building
100 kA
230 V
100 kV
100 kV
230 V
100 kV
1 

31. Photovoltaik Seminar - Blitzschäden
Damaged inverters
Photovoltaik Seminar - Blitzschäden
PV_Schaeden.ppt / 2005

33. Failures at Mahindra Susten, Kolayat

34. Real Life Experience

35. Basics: Equipotential Bonding Concept
Photovoltaik Seminar - Blitzschäden
CASE 1
10 KV
230V
RESULTS - ?
CASE 2
100 KV
100 KV
RESULTS - ?
PV_Schaeden.ppt / 2005

36. Basics: Galvanic coupling Lightning voltage in a building
100 kA
20 kV
100KV
230V
100 kV
100 kV
100 kV
1 

37. Basics: Lightning equipotential bonding for incoming lines
Photovoltaik Seminar 2008
Lightning equipotential bonding
MEB*
LPZ 0
LPZ 1
utility
external lightning protection system
water
gas M
heating system
Cathodically protected tank pipe
foundation earth electrode
*MEB = main earthing busbar
02_PV_Schaeden.ppt 2008

38. Lightning Protection System (LPS)
Photovoltaik Seminar 2008
External Lightning Protection
Air-termination system- collection of Lightning
Down-conductor system- Discharge of Lightning
Earth-termination system- Dissipation of lightning to ground
Internal Lightning Protection
Lightning equipotential bonding
Surge protection
Separation distance s must be observed to prevent dangerous spark formation
5th RE, India 2011 lightning protection photovoltaic
/ 4509e
02_PV_Schaeden.ppt 2008

39. Take care of short circuit/ DC arcs
ARC produce d by 12V DC battery –Imagine 1000 V ARC in PV
ARC PRODUCED BY 12 V CAR BATTERY- IMAGINE 1000V ARC in PV!!

40. LOAD CURRENT AND SC CURRENT BREAKING CAPACITY OF ARRESTER ?
I string 1
I stringTotal
I string 2
I string n
LOAD CURRENT AND SC CURRENT
BREAKING CAPACITY OF ARRESTER ?
e.g. IL=16 STRINGS X 10 A = 160A
ISCWPV > 180A

41. Photovoltaik Seminar - Überspannungsschutz
Selection of surge protective devices Case 2: Type 2 SPD in Y-connection with 3 varistors
Photovoltaik Seminar - Überspannungsschutz = ~
Practical example:
Open-circuit voltage of the generator UOC STC
PV_ÜSS.ppt / 2005

42. Photovoltaik Seminar - Überspannungsschutz
Surge Arrester DEHNguard® M YPV SCI Functional principle of the 3-step d.c. switching device
Photovoltaik Seminar - Überspannungsschutz
SCI.... Short Circuit Interruption
SCI
The electrical isolation of an overloaded protection module by means of the integrated fuse allows safe replacement of protection modules without arc formation
PV_ÜSS.ppt / 2005

43. Surge Arrester DEHNguard® M YPV SCI Safe electrical isolation
Photovoltaik Seminar - Überspannungsschutz
Circuit diagram
Can be used without backup fuse in all low-, medium- and high-performance photovoltaic systems due to the integrated fuse
SCI
PV_ÜSS.ppt / 2005

44. Surge Arrester for PV MUST HAVE
Photovoltaik Seminar - Überspannungsschutz
APPROPRIATE RATING OF ISCWPV
Y Connection
SURGE DISCHARGE RATING of >= 10KA at 8/20 microsec or 12.5KA 10/350 microsec
END OF LIFE- Proper disconnection of DC ARC through by pass FUSE
PV_ÜSS.ppt / 2005

45. PV Lightning and Surge PROTECTION REQUIREMENT
Photovoltaik Seminar - Überspannungsschutz
Good ELP design from professional as per IS/ IEC 62305
Good Earthing design as per IEEE 80
Ensure Equipotential Bonding using SPDs at all AC and DC inputs
END OF LIFE- Proper disconnection of DC ARC through by pass FUSE
KEMA approved products and not funkies as bodygaurd
PV_ÜSS.ppt / 2005

46. www.dehn.in THANK YOU Vikas.almadi@dehn.in / info@dehn.in
Unternehmenspräsentation
My Coordinates:- /