RKI-2-300
Purpose
The relay of control of isolation of "RKI-2-300" is intended for control of resistance of isolation energized in networks of a direct current with the isolated tires.
The relay of control of isolation of "RKI-2-300" is intended for control of resistance of isolation energized in networks of a direct current with the isolated tires.
Design of system
– The RKI-2-300 relay is executed in the case for installation on a DIN lath.
– On the forward panel of the device there are LED indicators "Power supply", "CONTROL of the NETWORK", "NORM", "ACCIDENT" and switch of settings threshold value of resistance of isolation "0 … 9".
– In the top part of the block there are terminal blocks for connection power supply of the device (A1, A2) and controlled network ("+", "-", PE). Power supply the relay can be carried out from a network =75 … 340 V or from the Hz network 220 V, 50.
– In the lower part of the block there are terminal blocks of contacts of three output relays 11-12-14; 21-22-24; 31-32-34 for connection of chains alarm systems and automatic equipment.
Power-supply circuits, measurements and contacts of output relays are galvanic divided.
Technical characteristic
* When giving food time of testing increases to 12 … 15 sec.
Climatic modification A, category of placement 2 in accordance with GOST 15543.1-89
– The RKI-2-300 relay is executed in the case for installation on a DIN lath.
– On the forward panel of the device there are LED indicators "Power supply", "CONTROL of the NETWORK", "NORM", "ACCIDENT" and switch of settings threshold value of resistance of isolation "0 … 9".
– In the top part of the block there are terminal blocks for connection power supply of the device (A1, A2) and controlled network ("+", "-", PE). Power supply the relay can be carried out from a network =75 … 340 V or from the Hz network 220 V, 50.
– In the lower part of the block there are terminal blocks of contacts of three output relays 11-12-14; 21-22-24; 31-32-34 for connection of chains alarm systems and automatic equipment.
Power-supply circuits, measurements and contacts of output relays are galvanic divided.
Technical characteristic
|
Parameter |
Value |
| Supply voltage | ~220 +10/-20% V, 50 или =75…340 Hz |
| Working tension of a controlled network |
=75…750 V |
| Setting of threshold values of resistance of isolation (with an accuracy, it isn't lower than ±3%) |
10; 20; 30; 50; 75; 100; 150; 200; 250; 300 kOhm |
| Hysteresis of inclusion/turning on of the alarm system on threshold values, no more | 5 % |
| Temporary delay on turning on of the alarm system at isolation deterioration, no more* | 5 s |
| The switched contact current (AC1 of 250 V), no more | 5 А |
| Electric durability of isolation food / a controlled network / contacts of output relays, isn't lower (GOST 15150-69) | 4500 V |
| Entrance resistance, not less | 2 МOhm |
| Power consumption, no more | 3 W |
| Resistance to influence of mechanical VVF (State standard specifications 17516.1-90) | М25 |
| Overall dimensions of the block | 88 х 90 х 60 mm |
| Масса, не более |
0,25 кг |
| Working temperature range | -40 … +60 °С |
| Section of the connected wires | 0,5…1,5 mm² |
* When giving food time of testing increases to 12 … 15 sec.
Climatic modification A, category of placement 2 in accordance with GOST 15543.1-89
Pict.1. Standard scheme of connection of the RKI-2-300 relay.