Product Details
Product Description
Product Description
PCD231B101 PCD244A101 ABB excitation control module
PCD231B101 PCD244A101 ABB excitation control module
The tagging function in the PCD is a customizable feature that can be tailored to meet specific needs of each utility. All PCDs include the ability to be tagged remotely through: • SCADA using one of the available protocols (DNP3.0 or Modbus) • WinPCD (which has dial-up capability) • Hardwired SCADA (via programmable input) Now, PCDs contain an enhanced faceplate (identified by Serial Numbers starting with “8R3”) that have a front panel Hot Line Tag button standard (see Figure 1).
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Activating the hot line tag function in the PCD • Sets the recloser to one shot mode • Prevents closing from all sources; including the front panel close pushbutton • Requires the tagging source to “un-tag” the control Additionally, the hot line tagging function can be programmed to select an alternate protection profile such as a fast curve. Note: if the user is using single phase tripping, it is especially important to switch to an alternate protection profile in order to switch to three phase tripping. When tagged, the unit will stay closed until there is a fault or until someone opens the unit. Once opened, the tag must be removed by the activating source. The following is an example using the scheme described above. This example is based on a PCD with the enhanced front panel, which includes the Hot Line Tag button. The programmable logic shown for the Trip/Close 52a/52b is based on a three phase tripping unit, but the tagging logic would be applied similarly for a single phase tripping unit.
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