Transformer Capacity Loss Tester

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HM5003 Transformer Capacity Loss Tester Setting Introduction Video

1.Operating Panel Diagram  
The operating panel of this instrument is shown in Figure 1: It includes a printer, LCD screen, keyboard, capacity test connection ports, characteristic test terminals, and data upload communication interfaces.

Figure 1

2. Main Menu
    After turning on the power switch, the device automatically enters the main menu interface (Figure 2).
   The main menu primarily includes five functions: "Capacity Test," "No-Load Loss," "Load Loss," "Management Query," and "System Settings." Users can select the desired function using the "↑" and "↓" keys, then press the "Confirm" key to enter. Simultaneously, the instrument accurately displays the current system time based on its internal clock chip.

 Figure 2

3.Wiring Method

  Wiring Method for Measuring Short-Circuit Losses of Single-Phase Transformers Using a Single-Phase Power Supply

  The wiring configuration is essentially identical to that used for measuring no-load losses of single-phase transformers with a single-phase power supply. Refer to Figures 3, 4, and 5. The only difference is that during short-circuit loss testing, the high-voltage side is typically designated as the test terminal, while the low-voltage side serves as the non-test terminal. Additionally, the non-test terminal requires manual short-circuiting.

Figure 3 Schematic Diagram of Direct Connection Method for Single-Phase No-Load Testing 

Figure 4 Wiring Diagram for External PT and CT Connection in Single-Phase No-Load Testing

Figure 5 Wiring Diagram for External CT Connection in Single-Phase No-Load Testing

Installing Drivers on Windows XP:

  First, install the drivers. Connect the data cable supplied with the tester to the computer's USB port. The system prompt appears as shown in Figure 1.
 

Figure 1 Beginning Driver Installation

   Select "Install from a list or specific location (Advanced) (S)" and click "Next." The screen shown in Figure 2 appears. 
 

Figure 2: Selecting the Driver Search Method

   Click "Browse" and navigate to the "CP210x_Drivers" directory on the CD provided with the instrument, as shown in Figure 3.

Figure 3: Selecting the Driver Directory

  Then click "Next," displaying Figure 4. Repeat this process once more to complete the driver installation.
 

Figure 4: Driver Installation Complete

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