3
.
连接电流互感器
Connect CT Sensors Grid (Inputs Grid PHA,PHB,PHC)
CT
方向由电网到负载
Make sure the CT is installed in the right direction: The arrow on the CT must be form grid to load.
CT
采样线按照图示方式延长,必须保证
R
相的
CT
接
IR
,
S
CT IS
,
T
CT IT
。
Wiring the signal wires of the CT as below picture, make sure that the CT which place the R phase line,
the signal wire of this CT must be connected to IRA / IRB of the ARPC. Don’t be in ISA/ISB or ITA/ITB.
相的
接
相的
接
485A 485B RY
6 RY
5 RY
4 RY
3 RY
2 RY
1 COM
ITB
ITA
ISB
ISA
IRB
IRA
T
S
R
N
R
S
T
N
2
.
连接电压采样信号线
(80-270Vrms)
Connect Voltage References
连接
N
线
Connect Neutral to Inputs Grid N
连接相线
R
,
S
,
T
Connect Voltage References to Inputs Grid R,S,T
提示
1
:不能将火线和零线接反。
NOTE1: Don’t reverse the R phase line (or L line) to Grid N.
485A 485B RY
6 RY
5 RY
4 RY
3 RY
2 RY
1 COM
ITB
ITA
ISB
ISA
IRB
IRA
T
S
R
N
R
S
T
N
Shenzhen SOFARSOLAR Co.,Ltd. c
Page 2
CT
延长线压接方式
CT sampling extension
cable.
Grid
Load & inverter
电网
负载
&
逆变器