Insulation control unit
Insulation control unit ICU is designed for integration into mine set electrical equipment (compact stations and control stations) and start-protection apparatus with voltage up to 1140 V of alternate current and frequency 50 Hz, which functions as an insulation resistance control unit in power circuits outgoing from the switch board.
The unit can be designed in the following versions:
- ICU-01 — for integration into mine set electrical equipment;
- ICU-02 — for integration into mine start-protection apparatus.
Electrical equipment and apparatus with the integrated unit are to have minimum ingress protection rating lP54. The unit is intended for operation in cold-temperature climatic regions and is produced in the version MCC (moderately cold climate) category 5 according to State Standard 15150-69.
Unit electrical diagram provides:
- actuating relay disconnection when control circuit resistance is lower than the specified control value, which can be set within the range from 10 to 100 kOm;
- light signal upon unit operation.
Basic specifications:
Parameter | Value | |
ICU-01 | ICU-02 | |
Power supply voltage, V | 42 | 36 |
Supply network frequency, Hz | 50 | |
Rated wattage, W | 2 | |
Dimensions, mm (max) | 126x68x40 | 132x120x63 |
Maximum weight, kg | 0.3 | 0.45 |
Operational mode — continuous | S1 | |
Extreme voltage deviation from the rated voltage, % | + 15; — 20 | |
Setting range, kOm | 10 — 100 | |
Maximum permissible control circuit voltage, V | 20 | |
Maximum permissible control circuit current, mA | 1,2 | |
Maximum voltage switched by alternate current actuating relay contacts, V | 60 | |
Minimum current switched by actuating relay contacts, A | 2 | |
Ingress protection rating | lP 30 | |
Ambient temperature, ° C | from — 10 to + 35 | |
Relative air humidity at the maximum temperature (35±2)° C, % | 98±2 | |
Maximum altitude above sea level, m | 1000 | |
Minimum average error-free running time, h | 10000 | |
Minimum average operating life, years | 6 | |
Examples of unit order record
“Insulation control unit ICU-01 TU BY 600175052.006-2005”;
«Insulation control unit ICU-02 TU BY 600175052.006-2005”.
See also
