Single-Phase Core Transformer Characteristic Testing

The core of a transformer is the main component responsible for transmitting and transforming electromagnetic energy. For transformers operating normally, the core must be grounded and can only be grounded at a single point. However, accidents caused by multiple grounding points on the core, leading to local overheating or even burning, occur frequently on-site. Relevant data indicates that accidents caused by multiple grounding points on the core account for the third largest category of transformer accidents. Therefore, national and industry regulations require online monitoring of the grounding current for transformer (reactor) cores, and stipulate that the grounding current of the core cannot exceed...100Miliampere.

Our independently developed transformer core grounding current online monitoring deviceAvailableTransformer (reactor) core/Clamping Ground CurrentPlease conduct onlineSurveillance, strong anti-interference capability, high accuracy.No Chinese content provided.Monitor dataLiveTransferred to the backendSoftware，Achieve realization for the iron core/An analysis of the grounding current in the clamping deviceAlarm and fault notifications.

The device meets the following technical requirements:

Electricity Industry StandardsDL/T1432.5-2019Technical Specification for Online Monitoring Equipment of Substation Transformers-5-Transformer Core Ground Current Online Monitoring Device

Electricity Industry StandardsDL/1498.5-2019"Online Monitoring Equipment for Transformer Substation Inspection Standard"-5-Transformer Core Ground Current Online Monitoring Device

State Grid Enterprise StandardsQ/GQW1504. 4-2013"Online Monitoring Device for Transformer Equipment Inspection Standard"-Transformer Core Ground Current Online Monitoring Device   

Key Performance:

● One host can be configured in multiple ways.6A monitoring loop, to the fullest extent, meets the on-site requirements.

● The current collection cycle can be self-set, high to100mSWith fault recording function,Meet the monitoring and collection requirements for transient overcurrent.

●The multifunctional design allows for both independent on-site use and easy installation.IEDMeets various needs.

● AdoptedOpen-loop sensors, designed with a separate unit, do not alter the main transformer's connection method, offer flexible installation, reduce operational procedures, and lower grid operation and maintenance costs.

● CurrentWide measurement range, up to high60AAlarm values can be set.

● The device is equipped with output nodes, catering to the later integration with the current-limiting resistor cabinet.

The device features self-check and self-recovery functions, with automatic alarms for any device or communication anomalies.

The unit features a wide-temperature range, a color touch screen, and a large storage capacity, allowing for on-site parameter setting and reading.

All components of the device are produced to standardization, featuring a three-proof design with the ability to withstand electromagnetic interference and temperature fluctuations.

● Device Communication Compatible with Serial PortsRS485No Chinese content provided. Please provide the text to be translated.TCP/IP）。

The backend software is designed with simplicity and fluidity, automatically generating current curves and capable of extracting excessive currents, presenting them in tabular form.