One more thing, I contacted Yhdc via ‘linahaoming’ user ID in the first posting above to ask about the status of the burden resistor. Below is her reply:
Hello. The SCT-013-000V has an internal burden resistor such that a voltage of 1 V appears for a primary current of 100 A. It therefore does not require the addition of a TVS diode, as the transformer will saturate long before a dangerous voltage can be generated. This product do not have TVS diode, it has internal burden resistor, therefore output voltage is 1V. The value for the internal burden resistor is 18.6Ω
Based on this, in my opinion, the term TVS used to label the resistor in the schematic diagram for the voltage output type SCT-013 available in the datasheet should be replaced with other term such as ‘Internal Burden Resistor’ or ‘Built-in Burden Resistor’ or ‘On-board Burden Resistor’ etc. Otherwise there might be other people that will come out with the ‘TVS resistor’ term because the schematic diagram uses a resistor symbol labelled with the term "TVS’.
Thank you.