一、Functional characteristics

This system uses full computer operation while retaining the manual operation function. The library function can be completed on the mouse or touch screen. After the test, the data is automatically uploaded to the test report. When querying the original data, you only need to enter the data number to automatically call out the data;

1. Enter the basic parameters of the Luancheng device (capacity, high and low voltage side voltage) on the keyboard to automatically select the high and low voltage current and voltage gears;

2. Automatic power gear (no need to press buttons manually) and automatic switching;

3. Automatically raise and lower the voltage regulator and automatically adjust the speed, and automatically stop when the rated current or voltage is reached;

4. Automatically perform abnormal current and voltage protection, and issue an alarm indication;

5. Automatically collect data, automatically save data, and automatically restore the initial state of the whole machine;

6. Automatically print the factory test report.

Data monitoring adopts international standard full data monitoring (all parameters and vector diagrams are displayed on the same screen) and is measured by a high-precision power analyzer to ensure data accuracy;

System protection adopts multiple protections such as software, hardware and system interlocking. The table body adopts a split design, and the control part adopts a separate design of primary and secondary control circuits, which greatly improves the safety of test personnel and tested products;

The induction voltage regulator adopts variable frequency speed regulation, and the motor speed can be adjusted manually at will. Greatly improve work efficiency and the accuracy of test data.

二、Design Standards

The technical conditions of the transformer comprehensive test bench provided by Baoding Huachuang Electric Co., Ltd. are in line with national and power transformer industry standards and specifications. If there are differences between the standards, the higher standard shall be used.

GB 1094.1-1996 Power transformers Part 1: General

GB 1094.2-1996 Power transformers Part 2: Temperature rise

GB 1094.3-1996 Power transformers Part 3: Insulation level, insulation test and external insulation air gap

GB/T 1094.10-2003 Power transformers Sound level measurement

GB/T 6451-1999 Technical parameters and requirements for three-phase oil-immersed power transformers

GB 1094.1-12007 Dry-type power transformers

GB/T 10228-2008 Technical parameters and requirements for dry-type power transformers

GB/T 15164-1994 Loading guide for oil-immersed power transformers

GB/T 507-2002 Insulating oil Breakdown voltage determination method

三、Electrical test items

The following tests are carried out in accordance with the relevant IEC60076-1~5 “Power Transformer” and IEC60726 “Dry-type Power Transformer” standards. The test items are shown in the following table: