Current Control Relay RT-05
Purpose
The relay of control of current with microprocessor management RT-05 is intended for control of size of direct or alternating current in a power chain and the alarm system at a current overload in a network
Design of system
– The RT-05 block is executed in the case for installation on a DIN lath.
– On the forward panel of the block there are NETWORK and RELAY indicators and handles of management "current, A" and "t turn-off, s".
– Power-supply circuits and measurements are galvanic divided.
– In the lower and top part of the block there are terminal blocks for connection of the block to a network and to the scheme of management.
– Power supply of the relay is carried out directly from a controlled network.
– The operation threshold on current is adjusted taking into account coefficient of transformation of the transformer of current (Кtr =I1/I2).
– For example: for the transformer of current 150/5 A, in case of a setting of current 3 A on a product scale, switching of contacts of the relay will happen at current; I setting = Кtr•3 = 90 А.
The relay of control of current with microprocessor management RT-05 is intended for control of size of direct or alternating current in a power chain and the alarm system at a current overload in a network
Design of system
– The RT-05 block is executed in the case for installation on a DIN lath.
– On the forward panel of the block there are NETWORK and RELAY indicators and handles of management "current, A" and "t turn-off, s".
– Power-supply circuits and measurements are galvanic divided.
– In the lower and top part of the block there are terminal blocks for connection of the block to a network and to the scheme of management.
– Power supply of the relay is carried out directly from a controlled network.
– The operation threshold on current is adjusted taking into account coefficient of transformation of the transformer of current (Кtr =I1/I2).
– For example: for the transformer of current 150/5 A, in case of a setting of current 3 A on a product scale, switching of contacts of the relay will happen at current; I setting = Кtr•3 = 90 А.
Technical characteristic
|
Parameter |
Value |
| Supply voltage | 220±10% V; 50 Hz |
| Range of controlled current |
0,5…5 А |
| Temporary delay of shutdown of the relay at excess of the set current |
0,1…20 s |
| The switched contact current ( АС1 250 V ) |
5 А |
| Power consumption, no more |
3 W |
| Overall dimensions of the block (2 modules) | 36 Х 90 Х 60 mm |
| Weight | 0.2 kg |
| Range of working temperatures (without condensate) | -40 … +45 °С |
| Pict.1. Chart of work of RT-05 |
Pict.2. Standard scheme of connection of RT-05 to the alternating current main |