ARTM Cable Temperature Measurement and Monitoring System Electrical Safety

Description :

　　Overview

　　Many companies advocate for preventive maintenance of equipment, and temperature is the most important monitoring parameter in preventive maintenance. A temperature that is too high or too low indicates the possibility of malfunction. Realizing online temperature monitoring is an important means to ensure the safe operation of high-voltage equipment. High temperature overheating directly leads to a decrease in the mechanical strength and physical properties of electrical materials, an increase in contact resistance, and accelerated oxidation of equipment connection points under continuous current flow. The oxidation results in further increase in contact resistance, intensified heating, and continuous temperature rise, leading to high temperature overheating. The problem of high temperature and overheating is a constantly developing process. If not controlled, the degree of overheating will continue to worsen. The increased contact resistance value with each temperature change will increase the heat of the next cycle, and the increased temperature will further deteriorate the working condition of the joint, thus forming a vicious cycle and seriously affecting the service life of electrical equipment. The traditional temperature measurement method has a long cycle, complex construction, low efficiency, and is not easy to manage. When a fault occurs, it requires a lot of manpower to physically investigate and re lay cables. However, in specific situations where monitoring points are scattered, the environment is closed, or there is high voltage, many temperature measurement methods cannot achieve measurement work.

　　Ankerui ARTM100 online temperature measurement systemThe main purpose is to monitor the temperature of electrical connection points such as cable joints and circuit breaker contacts in high and low voltage switchgear, in order to prevent excessive contact resistance caused by oxidation, loosening, dust, and other factors during operation, which can lead to heating and become a safety hazard. This improves equipment safety and ensures timely, continuous, and accurate reflection of equipment operation status, reducing equipment accident rates.

　　Temperature measuring components

　　1 Temperature sensor

　　a. Wireless temperature sensorA sensor installed at the temperature measurement point to collect temperature data and transmit it wirelessly.

　　There are currently three types of wireless temperature sensors available:Ankerui wireless sensor ATE200 online temperature measurement system

　　b. Wired temperature sensorA sensor installed at the temperature measurement point, which collects temperature data and transmits it through wired means. At present, the main wired temperature sensors are PT100:

　　2 Reception/Display Units

　　a. Wireless temperature measurement transceiver equipped with RS485 interface：

　　b. Wireless temperature measurement device ARTM Pn：Ankerui 12 point wireless temperature measurement device ARTM-P12 high voltage cabinet

　　c. Intelligent control device ASD300/320:

　　d. Centralized temperature measurement display ARTM100:Ankerui wireless temperature measurement ARTM-7062HT-4 (HI) 24 point temperature measurement

　　e. Temperature Inspection Instrument ARTM8: ARTM Cable Temperature Measurement and Monitoring System Electrical Safety

　　Online temperature measurement system configuration

　　1. Low voltage electrical contact wired temperature measurement/transformer winding temperature measurement

　　Explanation: The ARTM8 temperature inspection instrument can be equipped with up to 8 PT100 sensors, wired connections. When measuring low-voltage electrical contacts, the PT100 sensor needs to be insulated.

　　Wireless temperature measurement of electrical contacts in high and low voltage cabinets (displayed locally in a single cabinet)

　　Description: The ARTM Pn wireless temperature measurement device can connect up to 18 wireless temperature sensors. The passive (CT power supply) method is ATE300 (bundled installation), and the active (battery powered) method is ATE100 (bolt installation, mainly used for cable/copper bar screw fixing lap points) and ATE200 (strap type, mainly used for circuit breaker contact binding installation, because installation is more convenient than ATE100, cable/copper bar lap points are also commonly used).

　　Wireless temperature measurement and display function of electrical contacts in high and low voltage cabinets (on-site display)

　　Explanation: The ASD300/320 intelligent control device can connect up to 12 wireless temperature sensors. The passive (CT power supply) method is ATE300 (bundled installation), and the active (battery powered) method is ATE100 (bolt installation, mainly used for cable/copper bar screw fixing lap points) and ATE200 (strap type, mainly used for circuit breaker contact binding installation, because installation is more convenient than ATE100, cable/copper bar lap points are also commonly used).

　　Wireless temperature measurement of electrical contacts inside the high and low voltage cabinets (no need for on-site display)

　　Explanation: The ATC200 wireless temperature transceiver can connect up to 12 active wireless temperature sensors, including ATE100 (bolt type installation, mainly used for cable/copper bar screw fixing lap points) and ATE200 (strap type, mainly used for bundling and installing circuit breaker contacts, etc., because installation is more convenient than ATE100, cable/copper bar lap points are also commonly used). Only for receiving temperature signals from active wireless temperature sensors inside the same switchgear. If the number of wireless temperature sensors in the cabinet is greater than 12, multiple transceivers need to be configured

　　5 Centralized (ATC400)

　　Description: The ATC400 wireless temperature transceiver can connect up to 240 passive wireless temperature sensors ATE300 (bundled installation) and can receive temperature signals from multiple wireless temperature sensors inside the cabinet.

　　Wireless temperature measurement of electrical contacts in high and low voltage cabinets (centralized on-site display)

　　a) Touch screen paired with ATC200

　　Description: The touch screen is connected to multiple ATC200s via RS485 bus to achieve centralized display of switch cabinet temperature. Each touch screen can be connected to up to 20 ATC200s, and each ATC200s can be connected to up to 12 wireless temperature sensors.

　　b) Touch screen paired with ATC400

　　Description: The touch screen is connected to only ATC400 through RS485 interface to achieve centralized display of switch cabinet temperature. Only ATC200 can receive up to 240 wireless temperature sensors.

　　ARTM Cable Temperature Measurement and Monitoring System Electrical Safety

　　The power distribution system is a power network system composed of various distribution equipment and facilities that convert voltage and directly distribute electrical energy to end users. Due to the fact that the distribution system, as the last link in the power system, directly faces end users, its completeness directly affects the reliability and quality of electricity consumption for a large number of users, and therefore plays an important role in the power system. Therefore, in order to avoid serious accidents such as equipment aging, equipment burnout, power interruption, and equipment fire and explosion caused by high temperatures, long-term temperature monitoring of each electrical node can reasonably avoid personal injury and economic losses to users due to serious faults.

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• Cable temperature measurement and monitoring system