Typical Lightning Protection Solution for Large Storage System

Typical Lightning Protection Solution for Distributed Storage System

Battery storage system PCS

PV field PV inverter

Transformer Grid

Control

center

EMS

DC

AC

Communication

Battery storage system PCS

PV module

AC power distribution cabinet

EMS

Ammeter Grid

Load

DC

AC

Communication

1 2 3 1 2 3

1 2 1 2

4

1 2 3 1 2 3

5

6

5

6

PV inverter

1 2 1 2

Large Ground/Floating PV Power Station

Lightning Protection for PV Power Station of Industrial/Commercial-Use (Roof)

PV field Combiner box

Central inverter

Grid

Control

center

DC

AC

Communication

Comprehensive Lightning Protection for PV Power Station of HouseholdUse

PV field Inverter

Box-type substation Grid

DC

AC

Communication

Power station connecting system

PV modules Grid

DC

AC

3

6

3 3

1 2 1 2

6

5

6

Inverter Grid-connected box

1 2 1 2

5

Class II lightning protection at the AC/DC ends, mounted on PCB

Short-circuit current rating Iscpv: 1000 A

Nominal discharge current (8/20μs) Imax: 20 kA

Nominal discharge current (8/20μs) In: 10 kA

Voltage protection level Up: 2.0 kV

Dimensions: 34 mm × 14 mm × 26 mm

Maximum continuous operating voltage UC: 510 V AC; Ucpv: 670 V DC

Class II lightning protection at the AC/DC ends, mounted on PCB

Nominal discharge current (8/20μs) In: 10 kA

Maximum continuous operating voltage UC: 385 V AC; Ucpv: 500 V DC

Voltage protection level Up: 1.8 kV

Short-circuit current rating Iscpv: 1000 A

Nominal discharge current (8/20μs) Imax: 20 kA

Dimensions: 34 mm × 14 mm × 26 mm

Class II lightning protection at the AC/DC ends, mounted on PCB

Maximum continuous operating voltage UC: 510 V AC; Ucpv: 670 V DC

Short-circuit current rating Iscpv: 1000 A

Voltage protection level Up: 2.3 kV

Dimensions: 38 mm × 17 mm × 365 mm

Nominal discharge current (8/20μs) Imax: 40 kA

Nominal discharge current (8/20μs) In: 20 kA

Class II lightning protection at the AC/DC ends, mounted on PCB

Nominal discharge current (8/20μs) In: 20 kA

Short-circuit current rating Iscpv: 1000 A

Nominal discharge current (8/20μs) Imax: 40 kA

Maximum continuous operating voltage UC: 385 V AC; Ucpv: 500 V DC

Voltage protection level Up: 1.8 kV

Dimensions: 38 mm × 17 mm × 365 mm

Class I and II lightning protection at the AC/DC ends, mounted on PCB

Maximum continuous operating voltage UC: 460 V AC; Ucpv: 600 V DC

Voltage protection level Up: 2.8 kV

Shortcircuit current rating Iscpv: 1000 A (according to IEC 6164331:2018);

10 A (1100 V DC); 30 A (1000 V DC)

Nominal discharge current (8/20μs) In: 20 kA

Nominal discharge current (8/20μs) Imax: 40 kA

Dimensions: 38 mm × 17 mm × 365 mm

Impulse discharge current (10/350μs) Iimp: 25 kA

PCS & String Inverter - Power Supply Protection for 1000 V System

ZGGS20-670PVs1

1

ZGGS40-500PV

ZGGS20-500PVs1

ZGGS40-670PVs1

ZGGS2.5-670TPVs1

Class I and II lightning protection at the AC/DC ends, mounted on PCB

Maximum continuous operating voltage UC: 510 V AC; Ucpv: 670 V DC

Nominal discharge current (8/20μs) In: 20 kA

Nominal discharge current (8/20μs) Imax: 40 kA

Impulse discharge current (10/350μs) Iimp: 5 kA

Voltage protection level Up: 24 kV

Dimensions: 45 mm × 178 mm × 45 mm

Shortcircuit current rating Iscpv: 1000 A

Class II lightning protection at the AC/DC ends, mounted on PCB

Maximum continuous operating voltage UC: 680 V AC; Ucpv: 890 V DC

Nominal discharge current (8/20μs) In: 10 kA

Nominal discharge current (8/20μs) Imax: 20 kA

Voltage protection level Up: 30 kV

Dimensions: 34 mm × 18 mm × 26 mm

Short-circuit current rating Iscpv: 30 A (Max: 1500 V DC)

Class II lightning protection at the AC/DC ends, mounted on PCB

Nominal discharge current (8/20μs) Imax: 20 kA

Nominal discharge current (8/20μs) In: 10 kA

Maximum continuous operating voltage UC: 680 V AC; Ucpv: 900 V DC

Shortcircuit current rating Iscpv: 1000 A

Voltage protection level Up: 30 kV

Dimensions: 34 mm × 14 mm × 26 mm

Class II lightning protection at the AC/DC ends, mounted on PCB

Nominal discharge current (8/20μs) Imax: 40 kA

Voltage protection level Up: 30 kV

Maximum continuous operating voltage UC: 680 V AC; Ucpv: 890 V DC

Nominal discharge current (8/20μs) In: 20 kA

Short-circuit current rating Iscpv: 1000 A

Dimensions: 38 mm × 17 mm × 365 mm

Class I and II lightning protection at the AC/DC ends, mounted on PCB

Maximum continuous operating voltage UC: 680 V AC; Ucpv: 900 V DC

Nominal discharge current (8/20μs) Imax: 40 kA

Nominal discharge current (8/20μs) In: 20 kA

Impulse discharge current (10/350μs) Iimp: 5 kA

Shortcircuit current rating Iscpv: 1000 A (according to IEC 6164331:2018); 40

A (1500 V DC)

Voltage protection level Up: 35 kV

Dimensions: 39 mm × 225 mm × 50 mm

PCS & String Inverter - Power Supply Protection for 1500 V System

ZGGS20-890PVh1a2

2

ZGGS5-900TPV

ZGGS5-670TPVh

ZGGS20-900PVh

ZGGS40-890PV

Max. system voltage ≤1500 V DC class II lightning protection

Nominal discharge current (8/20μs) In: 15 kA

Impulse discharge current (10/350μs) Iimp: 1 kA

Shortcircuit current rating Iscpv: 1000 A

Voltage protection level Up: 45 kV

Dimensions: 90 mm×54 mm×67 mm (not including remote signalling terminal)

Maximum continuous operating voltage Ucpv: 1500 V DC

Nominal discharge current (8/20μs) Imax: 40 kA

Max. system voltage ≤1500 V DC class I and II lightningn protection

Nominal discharge current (8/20μs) In: 10 kA

Maximum continuous operating voltage UC: 800 V AC; Ucpv: 1500 V DC

Short-circuit current rating Iscpv: 1000 A (accroding to IEC 6164331)

Voltage protection level Up: 55 kV

Impulse discharge current (10/350μs) Iimp: 5 kA

Dimensions: 100 mm×108 mm×70 mm (not including remote signalling terminal)

Max. system voltage ≤1200 V DC

Maximum continuous operating voltage Ucpv: 1200 V DC

Voltage protection level Up: 40 kV

Nominal discharge current (8/20μs) In: 20 kA

Shortcircuit current rating Iscpv: 1000 A

Dimensions: 90 mm×54 mm×67 mm (not including remote signalling terminal)

Nominal discharge current (8/20μs) Imax: 40 kA

Max. system voltage ≤850 V AC

Maximum continuous operating voltage Uc: 850 V AC

Nominal discharge current (8/20μs) In: 20 kA

Nominal discharge current (8/20μs) Imax: 40 kA

Dimensions: 90 mm×72 mm×68 mm (not including remote signalling terminal)

Voltage protection level Up: 40 kV

Output end of AC distribution box

Maximum continuous operating voltage UC: 385 V (L-N), 255 V(N-PE) 50/60 Hz

Shortcircuit current rating ISCCR: 6 kA

Voltage protection level Up: 25 kV (LN), 2 kV (NPE)

Nominal discharge current (8/20μs) In: 25 kA (L-N), 100 kA (N-PE)

Dimensions: 1022 mm×90 mm×68 mm (L×W×H, excluding tolerance)

Impulse discharge current (10/350μs) Iimp: 25 kA (L-N), 100 kA (N-PE)

Class I Protection for Power Distribution Box

ZGGF25-385(3+1)AYc

ZGGH5-1500(2+1)TPV

PCS & Center Inverter - Protection at the AC/DC Ends of the Inverter

ZGG40-1500(2+1)PV

3

4

ZGG40-850(3+1)f

ZGG40-1000(2+1)PV

Sensor, CAN bus signal colletion line entering PLC

Total discharge current (8/20 μs): 20 kA

Maximum continuous operating voltage: 6 V DC

Cut-off frequency: 7.8 M Hz

Pins to be protected: two pairs of lines

Space saved: 93 mm×12 mm×69 mm

Impulse withstand capability (1.2/50 μs, 8/20 μs): 20 kV, 10 kA

Impulse discharge current (10/350 μs): 1 kA

Signal Protection for Communication System

ZGXMMZ2J5c

Signal colletion lines of wind vane, anemograph etc. entering PLC

Nominal discharge current (8/20μs): 10 kA

Maximum continuous operating voltage: 33 V DC

Pins to be protected: two pairs of lines

Total discharge current (8/20 μs): 20 kA

Impulse discharge current (10/350 μs): 1 kA

Space saved: 93 mm×12 mm×69 mm

Cut-off frequency: 78 M Hz

Environmental monitoring system at PV power plant

Cut-off frequency: 78 M Hz

Pins to be protected: two pairs of lines

Total discharge current (8/20 μs): 20 kA

Impulse discharge current (10/350 μs): 1 kA

Maximum continuous operating voltage: 33 V DC; 23.3 V AC

Space saved: 90 mm×18 mm×69 mm

Nominal discharge current (8/20μs): 10 kA

Integrated design

Lightning rod-ZGZ series

Maximum discharge current Imax (8/20 μs): 200 kA

Height: 18 m

Resistance: ≤1 Ω

Wind resistance: 40 m/s

Standards: GB 50057; Q/75875187-9•5

Direct Lightning Protection

ZGZ-200-1.8

Low resistance grounding module - ZGD series

No increasing of resistance value after large current impulse, without hardening,

embrittling or breaking

Long-term of steady resistance, hardly affected by season changes.

Graphite earth lead, vertically installed

Service life up to 50 years

Not toxic, harmful, free from pollution, and corrosion resistance

Applicable to harsh environment such as desert andn tundra areas

ZGD series

5

6

ZGXM-MZ2J-24c

ZGXMMZ2J24b1