MOEORW-CD300 on load voltage regulating switch fault diagnosis device

MOEORW-CD300 on load voltage regulating switch fault diagnosis deviceProduct Overview

MOEORW-CD300 on load voltage regulating switch fault diagnosis deviceIt is an intelligent electronic monitoring device. In response to the problem of poor reliability and susceptibility to accidents caused by outdated technologies such as mechanical cam linkages used in traditional on load tap changers,The device can monitor the operating status of the on load tap changer of the transformergearReal time monitoring and analysis of information, with maintenance guidance and warning functions, to ensure the safe, reliable, stable and efficient operation of the switch body and transformer.

MOEORW-CD300 on load voltage regulating switch fault diagnosis deviceFunction Configuration

standard features

Electrical parameter monitoringMeasure and calculate parameters such as single-phase/three-phase voltage, current, frequency, and power of transformers.

Gear information monitoringSupport the collection of tap changer gear information (BCD/4~20mA/Bin/Gray formats).

Action statisticsCount the number and duration of actions for each tap change of the tap changer.

Motor status monitoringMonitor the motor current and voltage of the electric mechanism and calculate the torque.

Oil temperature monitoringSupport PT100/4-20mA sampling method to connect to oil temperature monitoring signal.

life assessmentAccording to the application regulations and status data, calculate the electrical life and wear degree of the contacts, and provide maintenance and repair suggestions.

Peripheral accessCan be connected to an oil filter RS2001、 Status signals of equipment such as gas relays and pressure relief valves.

Vibration AnalysisMonitor the vibration of the tap changer, generate waveform diagrams, and diagnose and analyze them using algorithms such as time-domain and frequency-domain, coincidence degree, and high-low frequency energy ratio.

Motor current diagnosisCalculate the motor current MCI index according to IEEE PC57.143, and alarm when it exceeds the normal index by 30%.

Early warning alarmProvide warning and alarm functions for monitoring data exceeding limits, switch failures, and other situations.

Transformer condition assessmentBased on the top oil temperature and load current, calculate the transformer hot spot temperature and overload prediction according to IEC 60076-7, and evaluate the aging degree and service life according to the standard and manufacturer's temperature rise curve.

Scalable functionality

Monitoring of micro water, acetylene/hydrogen content in oil;

Oil pollution monitoring (dielectric strength, particle size);

Collection and analysis of voiceprint signals from tap changers;

Partial discharge monitoring and spectral analysis;

Digital temperature and pressure three in one sensor connection;

Monitoring and control of cooling system;

Dissolved Gas Analysis (DGA) in Transformer Oil;

Online monitoring backend system for tap changer (supporting SCADA data upload).

MOEORW-CD300 on load voltage regulating switch fault diagnosis deviceTechnical Features

structural design：
Adopting a 3U19 inch standard chassis (442mm × 133mm × 150mm), it supports wall mounted separate installation or integration into the operating mechanism, and is compatible with local control unit/cabinet design.

hardware architecture：
Modular plug-in board design, standardized interface for European standard terminals, front plug-in structure for easy wiring installation, and detachable display operation panel assembly.

data collection：
Real time/periodic collection of vibration, temperature and other status data of transformers and tap changers using high-speed sampling samples, and automatic recording of switch action waveforms based on motor current and gear signal redundancy triggering.

Configuration flexibility：
The input/output nodes support user-defined configuration.

Waveform Analysis：
Support the generation, storage, uploading, analysis, and diagnosis of waveforms such as motor current, vibration, and voiceprint.

Reliability Design：
Equipped with self checking and self resetting functions, using system level/hardware level/software level three-level watchdog to ensure long-term stable operation; Power failure storage does not result in data loss.

exception handling：
Automatic alarm for monitoring data anomalies, functional failures, communication interruptions, etc. The alarm strategy includes reasonable judgment logic to prevent false alarms and supports automatic recovery of communication/functional failures.

temperature monitoring：
Supports PT100 and 4-20mA temperature acquisition methods.

remote management：
Support upgrade of electrical/optical/serial port programs, and can remotely customize parameters such as sampling time, alarm value, temperature range, etc.

cooling control：
Support cooling system monitoring and control, collect fan status signals, calculate and control fan start and stop based on oil temperature and load, supporting up to 6 groups.