Principles and Explanation of AC Power Source

Answers to Product Technical Support and Features

1.How Long is the Warranty for EEC Products?

EEC products include a 5-year warranty, covering any issues due to non-human damage or product malfunction. Additionally, an optional global warranty service is available, allowing you to send instruments to our professional repair centers in the US, Malaysia, or Taiwan. Please note that some models exclusive to the APAC region come with a 2-year warranty, and the global warranty service does not apply to these models. For more information on warranty coverage, please contact our sales team.

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2. Are Drivers Available for EEC Products?

Yes, we offer the following drivers for EEC products:
· PowerTRAC® Software
· LabVIEW Drivers
· IVI Drivers
These drivers can be downloaded from our website, helping customers save time by avoiding the need to write custom software.

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3. What Is the Vsense Function of the AC Power Supply?

The Vsense function compensates for voltage drops along the power line to ensure accuracy. For instance, if the power supply outputs 100V, but the voltage drops to 97V at the test point due to line resistance, Vsense adjusts the power supply to maintain the correct voltage at the test point, thus preventing voltage drop issues.

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4. When Should You Use List Mode in the EEC 8500 Series?

List Mode is ideal for simulating complex waveform changes or when following regulatory waveforms, such as those specified by IEC61000-4-11.

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5. When Should You Use Step Mode in the EEC 8500 Series?

Step Mode is used for stepped voltage testing. For example, you can gradually increase voltage from 90V to 270V in 10V increments, holding each step for 5 seconds. This automatic process ensures a thorough test without manual adjustments.

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6. When Should You Use Pulse Mode in the EEC 8500 Series?

Pulse Mode is designed to simulate unstable voltage conditions, such as momentary fluctuations. This mode allows you to test how well your product performs under unstable power scenarios.

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7. What Should I Know About Using the 400XAC with Three-Phase, Three-Wire Mode?

When using three-phase, three-wire (3W3P) mode, set the output voltage correctly. The voltage displayed on the panel is L-N. If you want 120V output, set the L-N voltage to 69.2V (120V/1.732). Setting 120V directly may result in 208V L-L, which can damage the device under test.

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Answers to Principles and Explanation of AC Power Source

1. How to Choose the Right Power Supply Capacity?

 To select the right power supply capacity, consider the following:
1. Operating Voltage: Choose a power supply that supports your device's operating voltage (e.g., 220V).
2. Working Current: Ensure the power supply can handle the required working current (e.g., > 3A).
3. Inrush Current: Select a power supply that supports the inrush current (e.g., 18A).
For a product operating at 220V with a 3A working current and 18A inrush current, a 1.25 KVA power supply would be suitable.

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