Energy power touch screen monitor

Energy and power touch screen monitor is the core terminal of power system human-computer interaction (HMI). It has evolved from a simple parameter display device to an intelligent operation and maintenance portal integrating device control, status monitoring, alarm management and data recording. It is the key hardware foundation for realizing "observable, measurable and controllable" in power generation, transmission, transformation, distribution and new energy.

🖥️  Core functions: from "display instrument" to "operation and maintenance center"

As the direct interactive interface between operation and maintenance personnel and electric equipment, it bears the following key functions:

Equipment control and parameter setting: in the power plant, substation and other scenarios, the operation and maintenance personnel can complete equipment startup and shutdown, parameter adjustment and formula switching through the touch screen. On the electrical cabinet of the semi outdoor station, the industrial tablet computer is the entrance for the operation and maintenance personnel to open the field data, process alarms and adjust equipment parameters.

Real time status monitoring and visualization: real-time display of voltage, current, power, temperature and other key power parameters. For example, PM-5133 series touch type three-phase smart meters are equipped with a 3.5 inch color touch screen, which can visually monitor power information and control demand, support total harmonic distortion (THD) measurement, and meet carbon inventory and ISO-50001 energy management requirements.

Alarm management and temperature monitoring: ATP series wireless temperature centralized acquisition touch screen is applicable to 35KV and below medium and low voltage switchgear, which can access 240 wireless temperature sensors to realize the temperature monitoring of high-voltage switchgear contacts, knife switch, high-voltage cable middle head and other equipment, and has the functions of high-temperature real-time alarm recording and temperature curve.

Energy management and data recording: ABB Lite Panel Pro and other products can monitor connected low-voltage equipment and connect with ABB Ability Energy Manager cloud to ensure energy efficiency management. Some touch screens support power information recording with time stamp, 1-hour demand trend display and contract capacity early warning, and cooperate with relay alarm linkage function to help users predict and manage power demand.

🛠️  Technical characteristics and key indicators

In order to meet the strict requirements of strong electromagnetic interference, wide temperature outdoor environment and long-term uninterrupted operation in the power scene, the energy and power touch screen monitor has special hardware design.

1. Environmental adaptability and protection

Wide temperature operation: it needs to support a wide temperature range of -20 ℃ to 65 ℃ or even -30 ℃ to 70 ℃, without fear of the heat and cold. The extended temperature range of Mitsubishi Electric GOT2507T-WTSD means that there is no need to install heaters at low temperatures, nor to use fans and coolers at high temperatures, which can significantly reduce operating costs.

Protection level: The front panel is usually required to reach IP65 (dust and water prevention) or IP66/IP67F. ABB PP887S is fully sealed, equipped with M12 connectors, IP66 protection level, ATEX/IECEx Zone 2 and Zone 22 certification, and can be installed on outdoor poles without being placed in the cabinet.

Anti shock and anti vibration: it shall meet the requirements of 15G anti shock and 5-500MHz anti vibration to ensure continuous operation in vibration environment such as substation.

Readability in the sun: outdoor applications need to be equipped with a high brightness LCD panel (such as 1000 cd/m ²) and an anti glare coating to ensure a clear picture under strong light. Mitsubishi GOT2507T-WTSD eliminates glare through high brightness LCD and special coating, and enhances anti ultraviolet ability.

Explosion proof certification: In the dangerous areas of the power plant and other scenarios, the touch screen must have explosion-proof certification. The explosion-proof touch panel EXGP-3400R/3600R of Asahi Huacheng Engineering is applicable to the PLC operating terminal in hazardous material manufacturing places. It adopts the analog resistance film mode and reaches the IP64 protection level.

2. Special standards for power industry

The power industry has strict industry standard requirements for HMI devices, which is the core threshold for entering this field:

IEC 61850-3: Hardware design standard for IED of substation automation system, with emphasis on electromagnetic compatibility (EMC), wide temperature and shock vibration resistance test. AIS rugged HMI is specially designed to meet the EMC, climate and mechanical conditions of IEC 61850-3, and conforms to IEEE 1613, IEC/TS 61000-5-6 and other standards.

ATEX/IECEx: explosion-proof area equipment certification, applicable to power plants, chemical plants and other scenarios with flammable and explosive gases. ABB PP887S has ATEX/IECEx Zone 2 and Zone 22 certification.

ISO 50001: Energy management system standard, the design of PM-5133 series touch smart meters meets the requirements of carbon inventory and ISO-50001 energy management.

3. Touch technology and interface

Touch technology: Projective capacitance (PCAP) and resistive touch screens are both used in power scenarios. The resistive touch screen is suitable for the operation of the equipment panel. The operation and maintenance personnel can directly enter parameters, switch pages and confirm alarms. ABB Lite Panel Pro's resistive touch screen supports gloved operation to meet the needs of field operations.

Interface configuration: rich industrial interfaces are required. Dongtian Industrial Control DTP-1904-H110 is equipped with four RS232/485 interfaces, which can connect PLC, instrument, sensor or actuator; Three gigabit network ports can separate the control network, equipment network and upper platform network, reducing the maintenance difficulty caused by network mixing.

Communication protocol: support mainstream industrial protocols such as Modbus RTU/TCP. ATP series touch screen is equipped with one channel Ethernet port and one channel RS485 interface, supporting Modbus RTU communication protocol