AIL15 - Monitoring Of Presence / Drop-out Of 3 Phase Voltages In The Low Voltage Network

• CLIENT: Schrack Technik

The product consists of two parts. AIL15-M in tandem with AIL15-S is a modular system designed to monitor 1 to 16 pieces of three-phase outputs in the low voltage network. The AIL15-M measurement unit is evaluating, processing and publishing data gathered from AM15-S.

AIL15-M

AIL15-M concentrator is gathering data from up to 16 pieces of AIL15-S measurement units. The measured data from every measurement unit - voltage, current, effective power, idle power - is calculated and evaluated. The output values are published through the RS-485 Modbus interface and sent to the FTP server.

Communication interfaces:

• Ethernet RJ45

• Modbus RS-485

  • without galvanic separation

  • communication speed 115 200 Bd 8N1

AIL15-S RS-485

• with galvanic separation

• 5000 V isolation voltage according to UL1577

• proprietary, address protocol

• communication speed 115 200 Bd 8N1

Power supply:

• +12 V to +24 V DC 2 W

• power supply should be backed-up in case of drop-outs to prevent data loss

Expendable interfaces:

• USB for configuration

• 2x digital input (galvanic separation)

• 1x output signal relay

• 1x adjustment button

Technical parameters

AIL15-S

AIL15-S measurement unit is designed to measure voltage, current, effective power and idle power in transformer stations, low voltage distribution points etc. Measured data is sent through RS-485 serial interface of the AIL15-M concentrator. It is possible to connect up to 16 pieces of AIL15-S measurement units to the serial interface.

Inputs:

• 3 voltage inputs for direct measurement of 230 V/50 Hz with shared zero conductor (one three-phase output)

  • 0,5 m wires with double isolation non-detachable from the box

  • three wires with implemented protection impedance and one zero conductor

  • voltage inputs are conform with STN EN 61010-1: max. 300 V, CAT IV

• 3 current inputs 5 A/50 Hz with shared zero conductor for indirect measurement for external MTP

  • Connection to 6 screw clamps with 2,5 mm² maximal section

Output interfaces:

RS-485 with galvanic separation, connected to Phoenix QC 1/4-ST-BUS connector

• communication with AIL15-M, proprietary, address protocol

• Address configurable by a switch in the range of 1 to 16

• 115 200 Bd 8N1 communication speed

• 5000 V isolation voltage according to UL1577

Power supply:

+8 V to +24 V DC, 70 mA nom. current, Phoenix QC 1/4-ST-BUS connector

• Integrated galvanically separated DC/DC convertor

• 3750 V DC isolation voltage

• Power supply bus for AIL15-S has to be supplied by galvanically separated power supply with minimum 3000 V DC isolation strength

Measurement properties:

• Measurement of effective values of U and I in all phases, 1/s in the 2 precision class

• Measurement of effective and idle power P and Q by particular phases, 1/s in the 2 precision class

Technical parameters