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IRM READER – IntelliSAW Medium Voltage Monitoring System Data Acquisition Module - IntelliSAW
The IRM Reader module is designed to receive information from sensors and radio interfaces for transferring them to the CAM-5 module as part of the IntelliSAW medium equipment monitoring system. Connects from 1 to 9 to CAM-5 or integrates into an existing SCADA.The IRM Reader is a remote monitoring unit that provides temperature, partial discharge, humidity and ambient temperature measurements. It connects to CAM-5 modules. Up to 9 IRM Reader modules can be connected to one CAM-5. Such systems are needed to monitor the condition of critical power supply assets such as switchgear, medium voltage circuit breakers and busbar trunking.
Connectivity to IRM READER:
• 12 Wireless passive temperature sensors (SAW)
• 4 air partial discharge interfaces
• 8 humidity and ambient temperature sensors
Application:
Medium distribution devices and low voltage Busbars Insulated busbars Ring main blocks | Transformers Generator circuit breakers on-load tap-changer Rectifiers Capacitor blocks |
Areas of use
Generation:
- hydroelectric power station
- CHP
- Power plants
- on renewable energy sources
Industry:
- Heavy industry
- Metallurgical and aluminum plants
- Production
- Petrochemistry
- Data Centers
Transmission and distribution
- Step-up substations
- Step-down substations
- Collector substations
Equipment installation examples
A medium voltage switchgear cabinet is an example of an installation where the IRM Reader is installed in the low voltage compartment while all other sensors are installed in the high voltage compartments.
Temperature | |
Operating frequencies | 425 – 442 MHz |
Number of Temperature Sensors (SAW) | from 1 to 12 |
Redundancy module | up to 4 redundant antennas |
RF transmit power | Pulse, -6 to 10 dBm |
RF Receiver Sensitivity | -86 dBm |
Stable HF reception frequency | ±700 Hz |
RF Polling Distance | up to 1.75 m to Mast and 2.5 m to TPD Air Interface |
HF polling time | ? 160 ms |
Partial discharges | |
Number of channels | up to 4 CAM Air Interface (TPD) |
Method of measurement | Ultra High Frequency (UHF) |
Selectable ranges (center frequency) | 300 MHz, 600 MHz and 1200 MHz |
Measurement type | Noise level, surface discharge (corona), internal discharge (PD) |
Measurement scale | dB, calibrated against reference source |
Measurement sensitivity | 100 pC at peak discharge value, at 24 kV |
Polling time | 100 ms |
Humidity | |
Number of channels | up to 8 sensors connected via bus |
Measurement type | Relative humidity, ambient temperature |
Communication interface | |
Data bus | RS485 (half duplex) |
Bus baud rate | 4800, 9600, 19200, 38400, 57600 or 115200 |
Data transfer protocol | Modbus-RTU |
Response time | 500 ms or more (usually |
Setting interface | USB |
Configuration protocol | IntelliSAW Native |
Dimensions and weight | |
Operational power (3.5 W) | 48 V DC normal (24 and 60 V DC) |
Dimensions (HxLxW) | 81 x 142.5 x 46 mm |
Weight | 0.3 kg |
Degree of protection | IP20 |
Installation method | on DIN - rail |
terms of Use | from -25? up to +70? 10 – 95% relative humidity non-condensing Maximum altitude 5000 m |
The equipment is agreed upon with a technical specialist
Guarantee period 1 год
