Connection of power line of limiter and CT clamp Installation position of CT：

Three phase anti reverse limiter has 3 CT clamps, CT should be installed

between meter and grid accordingly before meter.

Note：The CT clamp has arrow symbol, it's direction should follow "Grid Side" to "Meter Side".

Fig 2-5 CT Connection

Follow Fig2-5,

a) R phase wire pass through the CT1 in the direction of the arrow on the CT clamp, and connect the CT1 to CT-R terminal of limiter;

b) S phase wire pass through the CT2 in the direction of the arrow on the CT clamp, and connect the CT2 to CT-S terminal of limiter;

c) T phase wire pass through the CT3 in the direction of the arrow on the CT clamp, and connect the CT3 to CT-T terminal of limiter;

d) The power line is a four core cable with color yellow, green, red and blue. Connect the yellow wire to R phase of the grid, green to S phase, red to T phase and blue to neutral.

2.2.2 Installation verification

You can follow below steps to verify if your installation is correct.

① Keep the power line of limiter connected

② Unplug the AC connecter of the inverter

③ If the  symbol on the inverter screen blink 2 seconds on and 2 seconds off, it means com cable connection between inverter and limiter is OK

④ Plug CT-R, Unplug the CT-S and CT-T terminal of the limiter.

⑤ Turn on some power consumption equipment to make R phase load larger than 300 watts, the LED-R on limiter should blink 2 seconds on and 2 seconds off, if not, check if the direction of R phase CT clamp reversed.

⑥ Plug CT-S, unplug CT-R and CT-T, turn on some power consumption equipment

to make S phase load larger than 300 watts, the LED-S on limiter should blink 2 seconds on and 2 seconds off, if not, check if the direction of S phase CT clamp reversed.

⑦ Plug CT-T, unplug CT-R and CT-S, turn on some power consumption equipment

to make T phase load larger than 300 watts, the LED-T on limiter should blink 2 seconds on and 2 seconds off, if not, check if the direction of T phase CT clamp reversed.

⑧ Resume all connection, the anti reverse system will work normally.

2.3.1 Installation instructions

① Connect the inverter to PV arrays and public grid, the same as normal on grid system.

② Connect communication cable between limiter and inverter(Same as step 2 in chapter 2.2.1)

③ Connection of power line of limiter and CT clamp

Installation position of CT：Single phase anti reverse limiter has one CT clamp, CT should be installed between meter and grid accordingly before meter .

Follow Fig2-6,

a) Live wire pass through the CT in the direction of the arrow on the CT clamp, and connect the CT to CT-R terminal of limiter;

b) The power line is a two core cable with color blue and brown. Connect the blue line to neutral and brown to live

2.3.2 Installation verification

You can follow below steps to verify if your installation is correct.

① Keep the power line of limiter connected

② Unplug the AC connecter of the inverter

③ Turn on some power consumption equipment to make load larger than 300 watts, the LED-R on limiter should blink 2 seconds on and 2 seconds off, if not, check if the direction of CT clamp reversed.

④ Resume all connection, the anti reverse system will work normally.