With the rapid development of the power system and the increasing awareness of electricity safety, people have higher and higher requirements for the reliability and safety of the power supply system. In order to better ensure the safety of power lines, the intelligent comprehensive protection product for online real-time monitoring of low-voltage power supply systems can effectively prevent electrical fires caused by grounding, arc short circuits, etc. due to leakage. The XM-380 series products newly developed by Xingming Electric Company can effectively monitor the voltage, current, power, electrical energy, environmental temperature and other parameters of power supply lines in real time, with functions such as multi-channel fire linkage, power grid monitoring, sound and light alarm, remote control, etc. It is a supporting product of power protection systems and widely used in electrical line protection of high-rise buildings, public places, schools and commercial buildings, factories and workshops, industrial and mining enterprises, residential areas, petrochemicals, telecommunications and national defense departments.
Product Features
Power parameter measurement function: Real time measurement of voltage, current, power, power factor, frequency, active energy, and reactive energy data of three-phase power supply lines.
Multi functional protection function: It has multiple protection functions such as leakage, overvoltage, undervoltage, overcurrent, overload, voltage out of sequence, current out of sequence, fire linkage, etc.
◇ Fire detection and alarm function: 5-way temperature, smoke, combustible gas detectors, and 1-way DC24V fire remote control signal input interface.
◇ Remote monitoring function: It has RS485 communication interface and RS232 communication interface. By adopting international standard communication protocols, remote control and intelligent centralized management can be achieved.
Event recording function: Record the total number of phase failures, overvoltage, undervoltage, overcurrent, voltage misalignment, current phase sequence, and the start and end times of the last 10 faults for phases A, B, and C; Record the total leakage faults, fire alarms, DC24V fire remote control, number of power outages, and the time of the last 10 faults; Record the total number of power on, programming, timing, password changes, and the last 10 operation times.
Model Description

work environment
The surrounding medium environment shall not be lower than -20 ℃ and not higher than+70 ℃; In a medium without explosive hazards, and where there is no gas or conductive dust that can corrode metals or damage insulation; A place without rain or snow invasion.
basic function
Excellent software and hardware design: combining excellent software design with high-performance and low-power microcontrollers; Simple interface, fully Chinese operation menu: practical and comprehensive functions, reliable performance, beautiful appearance;
Comprehensive protection: It has multiple functions of detecting and protecting electrical circuit danger signals such as leakage, temperature, overvoltage, undervoltage, phase loss, overcurrent, short circuit, lightning protection, etc., and has flexible protection settings;
◇ Electric energy management and measurement: It can achieve real-time monitoring of electrical parameters such as three-phase voltage, three-phase current, power, maximum power, and electric degree of the power supply line (measuring the current positive/negative A, B, C phases and total active energy; measuring the current positive/negative A, B, C phases and total reactive energy; recording the positive/negative A, B, C phases and total reactive energy from January to December).
Event storage: Real time monitoring of electrical energy data, automatic recording of various fault information, providing a basis for analyzing on-site electricity usage and eliminating faults.
Remote network monitoring: Using fieldbus communication technology and international standard communication protocols, the on-site operation can be monitored at all times through the upper computer management software, achieving remote control; Communication adopts RS485 or Ethernet, which has high reliability and good scalability. At the same time, it can be connected to various standard power monitoring software to establish centralized intelligent management;
◇ Fire linkage: Rich external linkage interfaces, capable of simultaneously receiving four switch alarm signals, centralized monitoring computer and FAS networking, achieving fire linkage.
◇ Safety self check: Self check can detect whether the wiring is correct; By self checking, the monitoring data can be immediately displayed to determine the status of the line;
◇ Equipped with intelligent circuit breaker function: It can set the rated current and has the function of setting the rated current and transition value of intelligent circuit breakers.
XMF series product specifications and features

Main technical parameters of XMF series

XMF interface diagram explanation

LCD display function

Explanation of LCD display symbols

Outline and installation dimension diagram

Outline and installation dimension diagram

XMF1 wiring and typical application diagram
a) XMF1 main circuit wiring
As an independent electrical fire monitoring detector, XMF1 has designed a movable installation panel to fully consider the convenience of installation and use, and to facilitate the connection of incoming and outgoing wires. When installing incoming and outgoing wires, the panel can be pulled open from above and fastened after connection. Attention: When using XMF1-100 type, the maximum width of the wiring terminal for connecting wires is 15mm, and when using XMF1-225 type, the maximum width of the wiring terminal for connecting wires is 18mm. The equipment is fixed and installed with 4 M6 screws.

b) Port application connection diagram

Installation diagram of electrical fire monitoring detector (compatible with single-phase and three-phase)

Important Note
The live and neutral wires of the front-end circuit breaker switch must both pass through this transformer (regardless of the direction of wiring); It is generally recommended to use circular transformers for copper or aluminum wires, and square transformers for copper or aluminum bars; The selection criteria for transformers are to choose the corresponding transformer window size based on the size of the cable or copper bar. Only applicable to the XMF series electrical fire monitoring detectors produced by our company. During installation and use, please note that the model and specifications of the transformer must correspond to the product's model and specifications. If the customer has special installation requirements, it can be specially customized.