HZCT8711 Automatic Calibration Device CT PT Test Bench

Overview

The ultra-fast multi-position transformer verification device is a new generation of transformer verification device developed by our company to adapt to the fast and accurate characteristics of modern transformer verification. A lot of market research was done when the device was updated, and it was improved after comprehensive consideration of various factors based on some improvement opinions fed back by users during use. The device is composed of several parts such as HZQA-C transformer calibrator, current and voltage load box, control cabinet, and special test bench for current transformer. On the premise of maintaining the characteristics of the original technology, the rapid measurement of current transformers, the rapid positioning of test points, and the coverage of load boxes and transformers with various transformation ratios have been greatly improved.

Main Features And Advantages

1. The device adopts program-controlled source technology to make the positioning of test points faster and more accurate.

2. The device has a qualitative improvement in the measurement speed of multiple current transformers, and can measure twelve current transformers with any variable ratio within 3-5 minutes.

3. The device is equipped with 5A, 1A standard current transformers, the current load box is equipped with 5A, 1A load value is 2.5VA-60VA, the voltage load box is equipped with 100V, and the 57.7V load value is basically from 1.25VA-158.75VA. Meet user requirements. The load bank can be switched automatically during measurement.

4. The device can perform routine and non-standard measurements of transformers, and the user can specify any percentage point measurement during measurement.

Advantages of transformer calibrator

1. Large-screen LCD display: superior to the display technology of many manufacturers

2. Highly integrated: errors and signal states are all integrated on the display, intuitive

3. Highly intelligent: secondary open circuit, wiring error, ratio error, acute error and other alarm information are directly displayed on the liquid crystal of the calibrator, and DSP is used to realize functions such as measurement, control, and display;

4. There is a computer interface to improve the level of office automation and reduce the intensity of manual labor; provide a friendly operation interface and rich measurement information;

5. It can automatically realize the transformer measurement, and can automatically switch the current and voltage load boxes, without human intervention switching;

6. Possess good signal capture measures and be able to promptly notify users of wrong information;

7. The instrument can reach level 1. At present, most of the calibrators on the market use the 90° RC phase-shift method to achieve data measurement. This method is easily affected by the ambient temperature and power frequency. Once the above-mentioned environment changes, its measurement data will be greatly affected. Using unique circuit principle and DSP technology to avoid the above problems

Advantages of current and voltage load boxes:

1. Fully electronic load box, automatic switching of load points, no matter it is current load or voltage load, it only needs to give an instruction to automatically switch

2. The load inside the load box is the real load, not the simulated load or virtual load of other manufacturers. The interior of the load box is designed with a printed circuit board to minimize wiring, reduce contact resistance, reduce resistance, and improve stability.

3. The currently used volt-ampere is displayed with lights, which is very eye-catching.

4. Automatically refresh when booting, and automatically detect the load of each gear

5. The layout design of the interface is beautiful and easy to operate.

6. The overall design idea and level are better than most domestic load boxes

Advantages of precision current transformer with current booster:

1. The binding posts below 600A at a time use M20 pure copper binding posts, the surface is chrome-plated, smooth, advanced technology and reflective. Superior to other manufacturers' materials.

2. The capacity is sufficient to ensure the effect of the primary circuit upflow

3. The thin-film alloy used for the internal coil is used to ensure the accuracy. In normal use, the error will almost never change, and the data is far better than the 0.02S level required by the tender, and can even be used as 0.01S.

4. The bottom is equipped with universal wheels for easy handling.

Advantages of precision voltage transformer with booster:

1. The wound iron core without air gap and no butt joint is adopted, which has good magnetic performance, and the transformer made has high precision, good performance and large error margin.

2. Using advanced winding core technology, the core is rolled from a whole oriented strip-shaped silicon steel sheet, and has been subjected to vacuum cooling treatment. There is no air gap in the core, and it has good magnetic properties. Precision transformers are designed according to laboratory and on-site calibration conditions.

3. The transformer can be used in the laboratory, and is more suitable for use in the field.

4. The shell insulation adopts ring casting shape, which is more perfect. It has good integral performance, compact structure, reliable insulation and stable performance. Small size and light weight.