Intelligent 246H Integrated Measurement and Control Device

Description

Product Usage

• The integrated measurement and control device is primarily used for general measurement and control in the integrated automation systems of substations and power plants; it can also be used independently as a standard measurement and control unit, primarily performing telemetry, telecommand, and telecontrol functions.

Features of Integrated Measurement and Control Device

Device self-test function

• The device automatically detects faults such as RAM, ROM, A/D, and power loss.
• Automatically detect parameters such as setpoints, configurations, and coefficients

Event Log

• Event logs include information on event status and device self-test failures.

Communication Features

• The device supports four communication modes: RS-485, CAN, wired Ethernet, and fiber-optic Ethernet (specify when ordering);
• The device uploads real-time data, including measurement data, digital I/O data, alarm signals, configuration settings, and parameters;
• The device receives control commands from the host system, including remote control and system synchronization.

Monitoring Features

• The device is equipped with telemetry capabilities to measure analog quantities such as current, voltage, active power, reactive power, power factor, and frequency;
• It is equipped with telecontrol capabilities to acquire position signals (such as circuit breaker, energy storage, isolating switch, and remote/local) and other digital signals;
• It is equipped with remote control capabilities to close and open circuit breakers.

Integrated Measurement and Control Device Panel Assembly & Installation Drawing

The standard features are listed in the table below:

General Technical Data

Environmental Conditions

Standard atmospheric conditions

Ambient temperature

• Operating Conditions: Ambient temperature: -20 °C ~ +70 °C; Relative humidity: 5% ~ 95%, no internal condensation or frosting.
  Storage Conditions: Ambient temperature: -30 °C ~ +80 °C. No irreversible damage shall occur under extreme temperatures without excitation, and the device can resume normal operation after temperature recovers. For packaged units, storage atmosphere pressure: 80–110 kPa (altitude ≤ 2 km), maximum relative humidity: 85%.

Other requirements

• The air around the equipment must not contain any acidic, alkaline, corrosive, or explosive substances.

Surroundings

• The installation site must be protected from sunlight, rain, and snow; shielded against lightning strikes and dust; and well-ventilated;
• Electromagnetic interference exceeding the limits specified in Clause 2.7 is not permitted;
• The installation site shall comply with the Class B safety requirements specified in GB/T 9361;
• The operating environment for the Integrated Measurement and Control Device shall not have vibration exceeding Severity Level 1 specified in GB/T 11287-2000. During transportation and storage, the equipment shall not be exposed to shock and impact exceeding Severity Level 1 specified in GB/T 14537-1993.
• The environment for Integrated Measurement and Control Device shall not contain explosive substances, conductive media, or corrosive media that impair metals, insulation, surface plating and coatings. Significant moisture and severe mold are prohibited.

FAQ

Q：What is the primary function of a common measurement and control device? Where is it installed, and how should one select it?

A:Public monitoring and control units feature a greater number of analog input points, digital input points, and relay output points. These allow for the acquisition of the power system data required at the power station. They are typically installed as panel assemblies in the substation. When selecting a unit, it is necessary to consider the number of analog, digital, and relay output points, as well as other parameters.