HIG93T
Article number: 70 927- HIG93T are a series of insulation monitor devices (IMDs) for insulated systems (IT systems) in rolling stock.
- The IMDs are designed according to the EN 50155 standard and are prepared for measuring insulation resistance in trains, trams, and trolleybuses.
- The IMDs are usually applied with a range of TL * T coupling devices, which allow monitoring of the usual operating voltages of 3 x 400 V or 3 x 500 V.
Monitored IT power supply system type according to IEC 61557-8 | AC | |
Measuring range of insulation resistance | RF | 5 ÷ 900 kΩ |
Adjustable range of critical insulation resistance | Ran | 5 ÷ 300 kΩ |
Number of insulation resistance fault levels (Ran) | 2 | |
Rated voltage of monitored IT system (AC) | Un | 275 V |
IMD power supply | From measured IT system, From independent power source | |
Nominal supply voltage AC | Us | 90 ÷ 265 V |
Power consumption | P | 5 VA |
Measuring voltage | Um | 12 V |
Measuring current | Im | < 0.6 mA |
Measuring input’s internal impedance | Zi | > 2 000 kΩ |
Measuring accuracy | ± 10 % | |
Electrical strength against internal circuits | 3 750 V | |
Equipped with display | Yes (OLED technology) | |
Supported module of distant signalisation (MDS) | MDS-D, MDS-DELTA | |
Communication interface for user | RS485 bus | |
Communication protocol | ISOLGUARD, PROFIBUS | |
Housing material | Polyamid PA6, UL94 V-0 | |
External control inputs | Test start | |
Degree of protection of front panel | IP40 | |
Degree of protection except the front panel | IP20 | |
Operating temperature | ϑ | - 25 ÷ 60 °C |
Protection class according to IEC 61140 | II | |
Recommended cross-section of connected conductors | S | 1 mm2 |
Installation | On DIN rail 35 mm | |
Modular width | 2 | |
Use for traction | Yes | |
Operating position | Any | |
Operation type | Permanent |