| 1. | The method of changing the transformer ' s ration and power regulating voltage are used in order to yield various levels of testing current accurately and quickly 试验中,为了快速准确的产生不同等级的试验电流,采用改变变压器变比与电动调压相结合的方法。 |
| 2. | Connectors for electronic equipment - tests and measurements - electrical continuity and contact resistance tests - test 2b - contact resistance - specified test current method 电子设备连接器.试验和测量.电连续性和接触电阻试验.试验2b .接触电阻.规定试验电流法 |
| 3. | Connectors for electronic equipment - tests and measurements - part 2 - 2 : electrical continuity and contact resistance tests ; test 2b : contact resistance ; specified test current method 电子设备连接器.试验和测量.第2 - 2部分:电连续性和接触电阻试验.试验2b :接触电阻.规定试验电流法 |
| 4. | Connectors for electrical equipment - tests and measurements - part 2 - 2 : electrical continuity and contact resistance tests - test 2b : contact resistance - specified test current method 电子设备连接器.试验和测量.第2 - 2部分:电连续性和接触电阻试验.试验2b :接触电阻.规定试验电流法 |
| 5. | Connectors for electronic equipment - tests and measurements - part 2 - 2 : electrical continuity and contact resistance tests - test 2b : contact resistance - specified test current method 电子设备连接器.试验和测量.第2 - 2部分:电连续性和接触电阻试验.试验2b :接触电阻.规定试验电流法 |
| 6. | 4 cross - sectional areas of connections and their corresponding testing current for temperature rise test is shown in table 4 ( the cross - sectional areas of connections externally wired by user should not be less than those in the table ) 温升试验用连接导线截面积与相应的试验电流见表4 (用户外接导线或铜排的截面积应不小于表中数据) 。 |
| 7. | Under the test conditions of ud = 2800v and 350hz switching frequency , the current in three phase inverting test reached to loooar . m . s , which can fully meet the requirements of 350km / h emu with 2600v link voltage and 950ar 在中间直流环节电压u _ d = 2800v ,开关频率为350hz的条件下,逆变的试验电流达到了1000ar . m . s ,完全能够满足350km h高速动车组对变流器中间电压2600v 、输出电流为950ar . m . s的要求,表明了地面试验机组的研究获得了成功。 |