Turkish
DUAL POWER TRANSFER UNİT
1. Application
The power transfer controller allows trouble-free operation of inverters and AC mains in the same circuit. The power transfer controller switches automatically between and AC main and prote cts the inverter againts external voltage. In addition, it offers the possibility to chose the battery pow er prior between the two power sources.
2. Product introduction:
This dual power transfer cpntroller is used between an off-grid system and the public power. The controller is separately connected with public power, inverter, battery and load, as the Picture shows. In the middle of the controller,there is an on/off switch, pls turn on the controller after ensure all the cables are well connected.
There are 5 indicators at the upside of the controller, which are public power indicator (1), inverter indicator (2) and 3 battery state indicators. The battery indicators shows the power state in battery as 75%, 50% and 25%.
3. Installation:
The installation should only be carried out by persons having relevant Professional skills. If there is any doubt, always contact an authorized expert.
Before insallation ensure that the inverter output as well as AC mains supply are voltage free and equip pedwith a safety lock system to prevent unintentional start of the power transfer controller.
3. The cross section of the used cables must be selected and secured in compliance with applicable law.
4. Ensure that the connection cables are connected properly and have good contact, as loose contacts may cause smoldering fire.
5. Use the supplied cage clamps to connect the protective earth conductor.
6. If the inverter has no earth connection, the battery terminal which is connected to earth must be conn ected to the protective earth Conductor.
7. Do not connect the neutral conductor on the consumer side to earth or protective earth conductor; as the consumer sockets in particular have no protective multiple earting (i.e. connection of PE-grounding wire with the neutral connector).
8. It is not permissible to use the power transfer controller for three-phase current.
9. After ensure all the steps above, connect the controller separately with public power, inverter, load and battery.
10. Turn on the switch after all the cables are well connected.Attention: the dual power transfer controller is just a switch between the off-grid power system and public power, it can’t replace the charge controller in the off-grid system.
Connection version: This device can work with both solar system and wind system.
System working specification:
Process 1: when the battery i,s full charged by solar panel, or battery power over 75%, inverter indicator (2) and battery state indicator (3) is shinning green. In this process, power is provided by the off-grid system.
Process 2: when the power in battery is consumed to 50%, the inverter indicator (2) and battery state indicator (4) is shinning green. In this process, power is provided by the off-grid system.
Process 3: when the power in battery is consumed to 25%, public power indicator (1) is shinning green, and battery state indicator (5) is shinning red. At this time the battery voltage is lower than 10.5V or 21V, the controller will automatically change the power supplier in 10ms. In this process, power is provied by the state grid.
Process 4: when the battery is charged by solar panel again, power is stocked in the battery until 50%, battery state indicator (+) and public power (1) is shinning green. In this process, power is still provided by the state grid, cause the battery voltage does not reach the over discharge return voltage point.
Process 5: when the power in battery is over 75%, inverter indicator (2) and battery state indicator (3) is shining green. At this time the battery voltage return to 13.5V or 27V, the controller will automatically change the power supplier to battery in 10ms. In this process, power is provided by the off-grid system.
