The AM series microcomputer-based protection, measurement, and control devices integrate protection, measurement, and control into one, suitable for user terminal substations (stations) with voltage levels of 35kV and below, enabling protection and measurement control for user substations.
Our application scope encompasses industries such as power, water resources, transportation, oil, chemicals, coal, and metallurgy.
The microcomputer protective device utilizes mature and reliable protection principles and algorithms, featuring strong anti-interference performance, high reliability, flexible protection implementation methods, and redundant communication design. It is equipped with an independent current measurement circuit, multi-channel switch quantity collection, and relay output.
Ring Main Unit Microcomputer Comprehensive Protection Device AM2SE
The AM2SE Microcomputer Protection Device is available in two installation types: AM2SE-V vertical and AM2SE-H horizontal, commonly used in ring main cabinets. It features 4 AC current channels, 6 LED indicators, 3 voltage channels, 8 digital input channels, 5 digital output channels, and 1 RS485 communication interface.
AM3SE
AM3SE is commonly used in 10KV and below PT monitoring or transformer substations for feed/infeed lines, and is available in two types: the voltage type microcomputer protection device AM3SE-U and the current type microcomputer protection device AM3SE-I. These devices are configured with 5 AC current channels; 3 voltage channels; 11 switch input channels; 6 LED indicators; 5 switch output channels; 1 RS485 communication interface; and GPS timing.
35kV Site Microcomputer Protection AM5SE
The AM5SE offers various models for protection and measurement control in different scenarios. The unit is equipped with 8 AC current channels; 6 AC voltage channels; 2 independent 4-20mA DC output operation loops; 20 switch input channels; 10 switch output channels; 8 configurable LEDs; 2 RS485 communication interfaces; 2 Ethernet interfaces; 1 RS232 interface; 1 USB interface; and GPS time synchronization function.
Micro-computer Protection and Measurement Control Device Features
Mature and comprehensive protection features:
Protective control functions for substation transformer stations with voltage levels below 35kV.
2. High-performance Hardware and Software Platform:
Our company possesses strong capabilities in data processing, logical computation, and information storage.
Humanization:
Hanhua Display features a simple human-machine interface; debugging and maintenance are easy and convenient.
4. Rich API Resources
Multiple communication channels for AC/DC current and voltage; multi-channel switching input/output (suitable for AC and DC); RS485 communication interface; IRIG-B time synchronization port.
5. Flexible and convenient wiring options:
Adaptable to various PT wiring methods. The protective current can be connected to three-phase current; the AC current channel can be connected to zero-sequence current, unbalanced current, or line current.
6. Transparency:
Real-time recording of communication volume, incoming volume, outgoing volume, and the status of all protection modules; logging the operational behavior, action time, and waveform data of internal components within the protection system.
7. Custom Switch Input
Users can customize the configuration of switch quantity inputs to meet their specific needs, offering maximum flexibility and convenience.
8. High Reliability Design
The company's products have successfully passed 6 electromagnetic compatibility tests and certifications, achieving the IV grade standard in terms of resistance to fast transient pulse groups, static discharge, and surge interference.
9. Openness:
The device is equipped with two communication protocols: enabling remote setting modification and switching, event recording and waveform data upload, remote control of circuit breaker switching, remote signaling, and remote control switching operations.
Closing Remarks
The AM series microcomputer protection device is a maintenance-free product. All protection functions are activated during the debugging process. When a protection trip occurs, the "Protection Action" indicator light on the device panel illuminates, corresponding relay and trip signal relay outputs, and the LCD displays the corresponding event record information; when a protection alarm is triggered, the device panelThe "alarm" indicator light illuminates, triggering the alarm signal relay output, with the corresponding event record information displayed on the LCD. Moreover, as long as the installation and operating environment meet the requirements, routine and scheduled maintenance are not necessary during normal operation. However, be mindful of loose screws due to long-term minor vibrations.
