For protection of household electric equipment against differences and power surges the special relays which are the microprocessor block of protection are used. Such device is capable to control the entering tension in network and in due time to switch-off the equipment and household appliances when tension goes beyond the set limits.
It is required to you
- - screw-driver;
- - tester;
- - connecting wires;
- - flat-nose pliers;
- - soldering iron.
Instruction
1. Study the instruction for technical operation which is attached to the relay. As a rule, documentation contains the description of technical characteristics of the device and the scheme of connection. Single-phase automatic relays have three sockets: entrance, exit and "zero". The arrangement of contacts on devices of various type can differ, but exits has to be three.
2. Before installation of the relay disconnect tension in working network. Prepare tools: screw-driver, tension tester, flat-nose pliers, soldering iron.
3. Attach the automatic relay of tension on the standard DIN lath representing metal profile for fastening of the modular equipment in electric boards. The relay as well as ordinary automatic switches fastens. The standard relay occupies three modules, each 18 mm thick.
4. Connect entrance and output phase wires. Connect the entrance terminal to the entrance automatic switch, and output – to the automatic machines regulating operation of household appliances of network (sockets, lighting and so on).
5. Use a wire with a section not less than 4 mm2 at connection of an entrance and output of the relay. If you apply a multicore copper wire, put on it a metal tip or carefully you zaludit the ends the soldering iron.
6. Connect the "zero" terminal to the corresponding conclusion of the electric counter a wire of 0.6-1.5 mm2. This connection will not bear considerable loading and will serve only for food of the electronic scheme of the automatic relay.
7. Adjust limits at which the relay will work. For an entrance to the mode of installations at the same time press the "plus" and "minus" buttons. When on the indicator it is highlighted tension operating value, the specified buttons increase or reduce this value.
8. Establish delay time. As a rule, it can be regulated ranging from 1 up to 300 seconds. After that the control system of tension will automatically pass into an operating mode, and the relay will be ready to work.