05
Figure3.3.2-4
Figure3.3.2-5
Grounding Diagram
①②③④⑤
1. SEC1000S can be placed horizontally to
work, as shown in the figure 3.3.2-4.
2. SEC1000S should be placed in a fixed
place indoors as shown in the figure 3.3.2-5.
3.3.3 Port and wiring instructions
Voltage Input Port(L1\L2\L3\N\PE)
Current Input Port (three sets of CT )
Connect three sets of external CT to the connector at the
position shown in figure 3-1（A+A-\B+B-\C+C-).
For detailed external CT connection, please refer to the CT
connection manual.
Recommended CT
According to the external current range, GoodWe
recommends the following specifications, for reference only.
Multiple strands of soft copper wire
Use wire crimper to press
10~12mm
Input phase voltage range：AC60V-AC280V；
Input line voltage range：AC100V-AC480V；
AC Frequency：50/60Hz；
①
③
L1
L2
L3
(N)
PE
NO Description
Content
A
Wire Diameter
No more than 25 mm
B
Cross Sectional Area of Copper Wire
R ecommend:AWG11-AWG13
C
Wire Length
About 45 mm
D
Length of Bare Copper Wire
About 12mm(10mm for PE)
NO
Range of current tested Content
Remark
1
Imax＜250A
CT 200A Acrel/AKH-0.66(200A/5A)
Backflow CT,closed type(Holesize31mm*11mm, 22mm)
CT 250A/5A Acrel/AKH-0.66-K-30x20-250/5
Backflow CT,open type(Opening size:32mm*22mm),accuracy 0.5%
CT 250A/5A Acrel/AKH-0.66-K-60x40-250/5
Backflow CT,open type(Opening size:62mm*42mm),accuracy 1.0%
2
250A≤Imax＜1000A
CT 1000A/5A Acrel/AKH-0.66-K-60x40-1000/5
Backflow CT,open type(Opening size:62mm*42mm),accuracy 0.5%
CT 1000A/5A Acrel/AKH-0.66-K-80x40-1000/5
Backflow CT,open type(Opening size:82mm*42mm),accuracy 0.5%
CT 1000A/5A Acrel/AKH-0.66-K-80x80-1000/5
Backflow CT,open type(Opening size:82mm*82mm),accuracy 0.5%
3
1000A≤Imax＜5000A
CT 5000A/5A Acrel/AKH-0.66-K-140x60-5000/5 Backflow CT,open type(Opening size:142mm*62mm),accuracy 0.2%
CT 5000A/5A Acrel/AKH-0.66-K-160x80-5000/5 Backflow CT,open type(Opening size:162mm*82mm),accuracy 0.2%
