● Industrial IT Isolated Power System
● AC, DC main circuits
● AC/DC main circuits with directly connected DC components, such as rectifiers
● Systems with switch-mode power supplies
General
AIM-T300 insulation monitoring device is designed and developed by Acrel gathering the design experience of electric power meter industry for many years to monitor the insulation condition of low voltage IT distribution system (ungrounded system). The product adopts advanced micro controller technology, with high degree of integration, compact size and easy installation, and it integrates intelligence, digitalization and networking.
The device, with many functions such as insulation fault warning, fault alarm, event recording and so on, can be used in the mines, glass factories, electric furnaces and test facilities, metallurgical plants, chemical plants, and exploded dangerous places, computer center, emergency power supply and other places to monitor the insulation status of IT system in real time. When insulation fault occurs, it will alarm and remind the staff to check the fault.
Function
|
Function |
Description |
Function Provide |
|
Insulation monitoring |
Real-time monitoring |
√ |
|
Fault warning |
√ |
|
|
Fault alarm |
√ |
|
|
Disconnect alarm |
√ |
|
|
Communication interface |
RS485 |
√ |
|
Protocol |
MODBUS-RTU |
|
|
Applicable power supply system |
AC |
√[1] |
|
DC |
√[2] |
|
|
AC and DC |
√[3] |
|
|
Display |
128x64 bit LCD |
√ |
|
Historical data |
20 SOE records |
√ |
|
UI language |
Chinese |
√ |
|
English |
√ |
Wiring
Installation
Front view & Side view
Back view & Panel cut-out
Application
Industry fields such as mines, glass plants, electric furnaces and test facilities, metallurgical plants, chemical plants, and exploded dangerous places, computer center and emergency power supply up to 450V.
|
Auxiliary Power Supply |
Voltage |
AC85-265V |
||
|
Frequency |
40-60Hz |
|||
|
Power Consumption |
<8W |
|||
|
Voltage Range |
System Voltage |
AC/DC 0~480V |
||
|
Output |
Relay output |
Capacity |
Fault Warning |
AC 250V/3A |
|
Fault alarm |
AC 250V/3A |
|||
|
Environment |
Operating temperature |
-20~+60℃ |
||
|
Storage temperature |
-20~+70℃ |
|||
|
Humidity |
95%RH, without condensation |
|||
|
Altitude |
≤2500m |
|||
|
Insulation monitoring |
Measuring range |
1k-5MΩ |
||
|
Precision |
1-10k |
10k |
||
|
10k-5M |
10% |
|||
|
Early-warning range |
60k~4999Ω |
|||
|
Alarm range |
10k~Warning value |
|||
|
Response time |
<6s |
|||
|
Allowable system leakage capacitance |
<150uF |
|||
|
Communication |
Interface |
RS485 |
||
|
Protocol |
MODBUS-RTU |
|||
|
Internal parameters |
Measuring current |
<170uA |
||
|
EMC |
IEC61326-2-4 |
|||
|
Rated impulse voltage /pollution level |
8kV/Ⅲ |
|||
|
Internal DC resistance |
≥120kΩ |
|||
