Voltage Transformer Temperature Rise Test

1 Overview

The temperature rise automation test device for current transformers in accordance with the electrical national standards>

And in accordance with the standards of the State Grid CorporationPending full automation requirements

Completed temperature rise test for current transformers. The device automatically adjusts according to the rated current of the connected current transformer.

The motion control electronic current booster reached the target test current as per the standard requirements, continuously monitoring the current mutual throughout the process.

Sensor housing temperature, winding junction temperature, ambient temperature, etc., and based on the measured temperature values and standards

The temperature rise stability condition automatically determines whether the current transformer has reached thermal stability, when the current transformer's temperature rise

After stabilization, the device measures the DC resistance value of the current transformer coil's winding, based on the resistance value at this moment.

Current transformer's winding resistance calculation after the current loop reaches thermal stability under high temperature conditions

And the significant appreciation of the Canadian dollar during the trial phase.

2. Features of the Test Device

Compared to the current manual measurement of current transformer temperature rise tests, the device boasts the following distinct advantages:

The temperature rise automation test device for current transformers can simultaneously measure the temperature rise of 5 current transformers.

Testing efficiency has been significantly enhanced.

During the testing process, the system automatically adjusts the output current size, ensuring that the testing current error remains less than the target current.

0.5% fluctuations will not cause significant fluctuations in the test current due to factors such as changes in the main circuit resistance and grid voltage fluctuations.

Enhancing the persuasiveness of the trial process

Real-time monitoring and recording of the temperature values of the current transformer's body, winding joints, and the environment, with automatic judgment of current mutual...

Sensor's thermal stability conditions, to avoid errors from human judgment

When the current transformer reaches thermal stability, quickly measure the resistance of the transformer winding to avoid manual wiring testing.

Measurement error due to time delay-induced temperature rise

The 5 Automatic Switching Current Transformer Secondary Circuit Load, to avoid errors that may occur due to manual operation.

3 Features

Our company has implemented an electronic voltage regulation method to automatically adjust the output current size, and it also controls the output electricity automatically during the testing process.

The flow value maintains an error within 0.5% of the target test current throughout the entire test process.

2 Automatic switching current transformer secondary circuit connected load value

Measure the resistance value of the secondary winding of a current transformer and calculate the electrical...

Large temperature rise in the transformer coil

4 Monitor the values of the current transformer's body, winding joints temperature, and other parameters during the test process automatically, based on the selected standard.

The company has developed an automatic judgment current transformer to determine if it has reached the temperature stabilization condition.

Record the temperature data curves of all monitoring points throughout the entire testing process, and document the changes during the test.

All measured resistance values

6 Automatically Generated Standardized Test Reports