ABB 5SHY3545L0003- Advanced Voltage Protection Module

ABB 5SHY3545L0003- Advanced Voltage Protection Module

Product overview

1. Model and positioning

The ABB 5SHY3545L0003 advanced voltage protection module is a core protection device designed specifically for high-voltage power systems, aiming to provide comprehensive and accurate voltage protection and monitoring functions for power equipment. This module, with advanced digital signal processing technology and intelligent algorithms, can quickly respond to abnormal voltage changes and effectively prevent damage to power equipment caused by overvoltage, undervoltage, voltage imbalance, and other issues. It is widely used in substations, high-voltage transmission lines, large-scale industrial electrical equipment, and other scenarios, and is a key equipment to ensure the safe and stable operation of the power system.

2. Core values

High precision protection: With high-precision voltage detection and analysis capabilities, it can accurately capture subtle voltage fluctuations, quickly trigger protection actions, and reduce the risk of equipment damage due to abnormal voltage.

Intelligent adaptive: Built in intelligent algorithms can automatically adjust protection parameters according to the operating status of the power system, adapt to voltage protection requirements under different working conditions, and improve the reliability and flexibility of protection.

Multi functional integration: integrating voltage monitoring, fault diagnosis, protection control, data recording and communication functions, providing comprehensive support for power system operation and maintenance, reducing equipment quantity and system complexity.

High reliability design: Using high-quality electronic components and strict manufacturing processes, it has excellent anti electromagnetic interference, high temperature resistance, moisture resistance and other properties, and can operate stably in harsh environments, reducing maintenance costs and equipment downtime.

Core technical principles

1. High precision voltage sampling technology

The module adopts high-precision voltage transformer (PT) and 24 bit high-speed ADC (analog-to-digital converter) to sample the input voltage signal in real time, with a sampling frequency of up to 10kHz. It can accurately capture the transient changes of the voltage signal, ensuring a voltage measurement accuracy of ± 0.2%, and providing reliable data basis for accurate protection judgment.

2. Intelligent protection algorithm

Based on digital signal processing (DSP) technology and advanced intelligent algorithms, the sampled voltage data is quickly analyzed and processed. Built in multiple protection logics, including overvoltage protection, undervoltage protection, voltage imbalance protection, voltage harmonic protection, etc. By using the Fourier Transform (FFT) algorithm for frequency spectrum analysis of voltage signals, the harmonic content and frequency components of voltage can be identified. When voltage anomalies are detected, combined with preset protection thresholds and delay logic, the fault type can be quickly and accurately determined, and corresponding protection actions can be triggered.

3. Communication and Data Interaction

Supports multiple industrial communication protocols, such as IEC 61850, Modbus TCP/RTU, Profibus DP, etc., enabling seamless communication with substation automation systems (SAS), power monitoring systems (SCADA), and more. Real time uploading of voltage monitoring data, protection action information, fault recording data, etc. to the monitoring center, while receiving control instructions and parameter configuration information from the upper computer, achieving remote monitoring and management.

Core technical parameters

rated voltage

AC 100V/220V (voltage input), DC 24V/110V/220V (power input, ± 15% fluctuation adaptation)

Voltage measurement range

0-1.5 times rated voltage, accuracy ± 0.2%

Protection function

-Overvoltage protection: action value 50-150% Un, action time adjustable from 10ms to 5s - Undervoltage protection: action value 30-90% Un, action time adjustable from 10ms to 5s - Voltage imbalance protection: imbalance threshold value adjustable from 1-15%, action time adjustable from 100ms to 10s - Voltage harmonic protection: 2-50th harmonic threshold can be set, action time adjustable from 100ms to 30s

communication interface

-Ethernet: 10/100Mbps (supports IEC 61850, Modbus TCP) - Serial port: RS485 (supports Modbus RTU, Profibus DP) - Fiber optic interface: optional, supports optical signal transmission, enhances anti-interference ability

data record

Support the storage of the last 1000 event records, including protection action events, voltage limit events, device self-test events, etc; Supports fault recording data storage for up to 10 seconds, with a sampling frequency of 10kHz

work environment

-Temperature: -40 ℃ -+70 ℃ (fanless self cooling) - Humidity: 5% -95% (non condensing) - Protection level: IP20 (panel installation), in compliance with IEC 61000-6-2 industrial electromagnetic compatibility standard

power consumption

≤ 15W (unloaded)

Core functions

1. Comprehensive voltage protection

Overvoltage protection: When the system voltage exceeds the set overvoltage threshold, the protection is quickly triggered according to the preset action time, and the fault circuit is cut off by outputting a trip signal to prevent serious accidents such as insulation damage, shortened service life, and even fire caused by overvoltage in electrical equipment.