The Vanguard TSB can be used with a Vanguard ATRT-03 or TRF series turns ratio tester to perform transformer turns ratio tests using the same cable set provided with the TRM-203/403. Using the TSB, there is no need to connect and reconnect cables from the transformer after the initial connections are made. The user can conveniently perform resistance tests using the TRM-203/403 and turns ratio tests using an ATRT-03 or TRF instrument without having to make trips to the transformer to connect and disconnect cables.
Vanguard TSB可与Vanguard ATRT-03或TRF系列匝数比测试仪一起使用，使用随TRM-203/403提供的相同电缆组进行变压器匝数比测试。使用TSB后，无需在初始连接后连接和重新连接变压器的电缆。用户可以使用TRT-203/403方便地进行电阻测试，并使用ATRT-03或TRF仪器进行匝数比测试，而无需跳闸到变压器以连接和断开电缆。
