AS 62054.11:2018 pdf free
AS 62054.11:2018 pdf free.Electricity metering equipment (a.c.)一Tariff and load control
The aim of the test is to check that the operation of the receiver is not unduly disturbed by a voltage interruption of maximum 0,5s±20 ms and that nothing other than the reset of the receiver occurs when the voltage interruption is longer than 0,5 s. Two situations have to be considered:
一the interruption takes place while the receiver is connected to the network in a quiescent state;
一the interruption takes place during a transmission cycle.
a) The 0,5 s interruption takes place while the receiver is in a quiescent state. It shall be verified that the receiver does not start as an effect of the voltage interruption and that internal timers are not affected. For this purpose, 3 s after the voltage interruption, a message is transmitted with the operate voltage Uq. The output elements should operate correctly according to the commands of the message.
b) The 0,5 s interruption takes place during a transmission cycle. It shall be verified that the interruption does not impede the operation capability of the receiver. For this purpose, the receiver is started by a message with the operate voltage Uf, the other influence quantities having their reference values. At a certain point of the cycle， the supply voltage is interrupted for 0,5 s, whereby this point can be placed at different positions in subsequent cycles (for instance, at the position of the start pulse, of an information pulse or of a pulse interval). The message is to be composed in such a manner that a command to change the state of the output element(s) is placed after the interruption.
It shall be verified that no wrong operation occurs. In the case where the disturbance coincides with the start bit or an information pulse related to this command, or is adjacent to it, it is accepted that no operation is carried out. In all other cases, the command must be carried out.AS 62054.11 pdf free download.
