Claims
- 1. A method for providing compensation current, which is a method used for testing leakage current in safety specification testing, the method comprising: using a standard test voltage value VR as a standard voltage value for a subsequent compensation calculation; reading a test voltage value VM and a leakage current IM after connecting an object to be tested to a connecting point; and calculating a simulated compensation value of a dynamic leakage current IS in accordance with a following equation: IS=(VR/VM)·IM.
- 2. A test device, using the method according to claim 1, which is a multi-function test device for AC voltage test, DC voltage test, insulation impedance test, ground impedance test and line leakage current test, wherein the line leakage current test of the test device comprising: a fixed voltage power supply; a system control device, for providing selection of test and control signals for each of devices and connecting with a displaying device; a leakage current detection device, having an operating equation for calculating a compensation current for a leakage current and setting a voltage value for testing the leakage current, wherein a simulated compensation voltage of a dynamic leakage current is calculated by: connecting an object to be tested to a connecting point for reading a test voltage value and a leakage current value, and calculating the simulated compensation current of the dynamic leakage current by using the set voltage value, the test voltage value and leakage current value.
- 3. A multi-function test device, connecting with a displaying device and using a system control device to provide selection function for test and control signals for each of devices, having functions of AC voltage test, DC voltage test, insulation impedance test, ground impedance test and line leakage current test, wherein the line leakage current test of the multi-function test device comprising: a fixed voltage power supply; a system control device, for providing selection of test and control signals for each of devices and connecting with a displaying device; a leakage current detection device, having an operating equation for calculating a compensation current for a leakage current and setting a voltage value for testing the leakage current, wherein a simulated compensation value of a dynamic leakage current is calculated by: connecting an object to be tested to a connecting point for reading a test voltage value and a leakage current value, and calculating the simulated compensation value of the dynamic leakage current by using the set voltage value, the test voltage value and leakage current value.
- 4. The multi-function test device according to claim 3, wherein said AC voltage test and DC voltage test are capable of sensing output current, wherein said multi-function test device and the object to be tested are simultaneously connected to a low voltage.
Parent Case Info
[0001] This is a continuation-in-part application of application Ser. No. 09/675,546, filed Sep. 28, 2000.
Continuation in Parts (1)
|
Number |
Date |
Country |
Parent |
09675546 |
Sep 2000 |
US |
Child |
10267075 |
Oct 2002 |
US |