General Characteristics
INTEGRAMETER is the last born in our line of on-board metering products and integrates in a single product many functions that were previously divided into multiple components from different suppliers. Thanks to this patent, Microelettrica has become the one supplier in the world to create and deliver a compact and fully integrated device which characteristics, both in the high voltage section and in the low voltage metering section, offers maximum reliability and safety.
Functions
INTEGRAMETER’s functions are highly customizable according to customer needs or suggestions coming from our experience:
- Detection and measurement of the instantaneous catenary AC and DC voltages
- Detection and measurement of the instantaneous catenary AC and DC currents
- Measurement of energy consumption
- Analog and/or digital output signals
- RS422 or RS485 serial outputs
- On-line diagnostics through optical fibre
Available options includes:
- Measurement of harmonics
- GSM communication
- GPRS on board
Environmental Performance
The device is compliant with all regulations of the rail market. All components are homologated for the industrial temperature range (from -40°C to +85°C - Class TX - EN 50125-1) and ensure proper function in the worst environmental conditions.
Electrical Performances
INTEGRAMETER operates under the following power supply systems (EN 50163 – Railway Systems Supply Voltages).
The basic configuration includes up to:
- 8 redundant analog outputs for the measurement of the catenary voltages
- 2 analog outputs for catenary AC currents
- 10 redundant digital outputs (relays) for detection of the catenary line system or for diagnosis
- Serial ports to allow both a redundant serial transmission of voltage and current (RS422 in the basic configuration) as well as energy measurement (RS485)
- Testing port to activate a TEST function to check the Integrameter’s proper functioning
- Precision 1% on the whole TX range; 0.5% at 23°C
Connections
The Integrameter is designed to be mounted on the vehicle’s roof, by the pantograph.
A terminal is connected to the pantograph while the other is directly connected to the AC High Speed Vacuum Circuit Braker.
A third terminal is directly connected to the DC High Speed Circuit Braker with an external device that provides the measurement of the current of 3kVdc lines.
