Solar grid tie power limiter provent extra power to grid 

1:System without the Grid Tied Limiter

1.1.  The grid tied inverter feeds all of the power available from the solar panels(A1) to the AC load

(A2),all excess power is then exported to the Grid(A3).If the grid fails(Grid V=0v)then the grid tied

inverter will turn off. When the Grid comes back on line the grid tied inverter will export power back

again.

1.2.  If the grid tied inverter is producing less power than what is required by the AC LOAD then the

load will be supplemented with the power from the Grid(B1).

1.3.  If the grid tied inverter is producing more power than what is required by the AC LOAD then

the excess power will be exported to the Grid(A3).

1.4.  Power Meters(Except smart meter)are not aware of the direction of power flow. They will

charge for power in both directions and this is a problem.(B1 and A3).

1.5. The Grid Tied Limiter will fix this problem by preventing the export of power to the grid(A3).

3.1.The LCD Display

Displays the Utility Power (grid power), Inverter Power (GTIL power), Utility KWH and Inverter KWH.

3.2.AC Receptacle For GTIL  AC output

Two (2 pcs) - Connects the AC output of GTIL to LM. Can be plug in either receptacle. Maximum

Power per receptacle is 2kw or a total of 4kw GTIL can be plugged in the two receptacles. The

output of GTIL can also be directly connected to the grid or through the house convenient outlet.

But the LM LCD will no longer  display the Inverter Power and Inverter KWH.

3.3.Clamp Sensor

Connects/clamps to one hot wire after the Main Circuit Breaker. Converts the magnetic field created

by the flow of current in the wire into small AC voltage and current which is proportional to the power that passes through the wire.

3.4.Clamp sensor AC signal input – connects the clamp sensor AC signal to the LM module.

3.5.Limiter Module AC power input- Connects AC power from grid to energize the wattmeter and the Limiter Circuit.

WARNING!!!- Do not connect to AC grid if terminal block is wired or connected to the GRID.  Only use when the GTIL is remotely located or the user decided to connect the AC output of GTIL to other grid location within the user premises.

3.6.Terminal Block- AC power to Grid

The AC output of the GTIL is plugged to the LM receptacle in order for the LCD to display the GTIL

output in watts and KWH. The GTIL output is connected to the Grid through the Terminal Block.

Connecting the terminal block to AC grid also powers the wattmeter and limiter circuit.

3.7.Limiter DC Signal Output, 2 pcs– Connects the LM output signal to the GTIL signal input. User

can connect to any of the signal output receptacle.

Note: After all connection are done, Long press the SET button to power on the limiter. Detail LCD

operating instruction is show in the LCD operating page

Connection Diagrams:

We provide 3 connection diagrams for customer to choose. GTIL will only provide 3m signal cable

and sensor signal cable. If customer need to configurate the system same as the diagram 2 and

diagram 3.Customer need to buy cables in local and remake the cable by themselves. Long cable

may cause bigger excess power. We have test it, as long as the cable is less than 30M,It will have no affect.

Note: The Grid Tied Limiter cannot able to limit power 100% accurate, It will have some excess

power send to the grid or supplement by the grid. But in most of the time, it will supplement by grid.

the excess power will be about 10W.

Limiter Module Specification

Clamp sensor- Max 100A

Wattmeter- Max 9999w

Terminal Block-Max 20A

 AC power input- Max 10A

Receptacle- max 2000w

Clamp sensor signal- 5v AC max mA

DC signal Cable- 5v DC, ____ max mA