Breaker measurement structure for power distribution unit
A power distribution unit includes a circuit protection device having output terminals and a current transformer board connected to the output terminals of the circuit protection device. The power distribution unit further includes a signal board connected to the current transformer board and a measurement board connected to the signal board.
1. An integrated printed circuit board assembly system of a power distribution unit, the integrated printed circuit board assembly system comprising:
a plurality of current transformer boards, each current transformer board being configured to connect to a circuit protection device;
a plurality of measurement boards, including at least a first measurement board and a second measurement board,
wherein each of the plurality of measurement boards is configured to measure at least one of a voltage and a current; and
a signal board connected to each of the plurality of current transformer boards and connected to each of the plurality of measurement boards,
wherein the signal board collects voltage and current signals from each of the plurality of current transformer boards and distributes the voltage and current signals to the plurality of measurement boards.
2. The integrated printed circuit board assembly system of claim 1 , wherein the signal board has a first side and a second side, the first side having a plurality of connectors configured to receive the plurality of current transformer boards and the plurality of measurement boards.
3. The integrated printed circuit board assembly system of claim 2 , wherein the second side of the signal board has no traces or components.
4. The integrated printed circuit board assembly system of claim 1 , wherein the plurality of current transformer boards includes at least a first current transformer board, a second current transformer board, and a third current transformer board.
5. The integrated printed circuit board assembly system of claim 1 , wherein each of the plurality of current transformer boards includes integrated voltage sense terminals.
6. The integrated printed circuit board assembly of claim 1 , further comprising an input board connected to the first measurement board, wherein the input board provides an input voltage and current signal to the first measurement board.
7. The integrated printed circuit board assembly system of claim 6 , wherein the input board accepts one of a three-phase wye voltage input, a three-phase delta voltage input, and a single-phase voltage input.
8. The integrated printed circuit board assembly system of claim 6 , wherein the input board includes metal oxide varistors.
9. A power distribution unit comprising:
a circuit protection device having output terminals;
a current transformer board connected to the output terminals of the circuit protection device, the current transformer board providing a secondary output that is proportional to an output of the circuit protection device;
a signal board connected to the current transformer board; and
a measurement board connected to the signal board, the signal board collecting the secondary output from the current transformer board and distributing the secondary output to the measurement board.
10. The power distribution unit of claim 9 , wherein the current transformer board includes integrated sense terminals connected to the output terminals of the circuit protection device.
11. The power distribution unit of claim 10 , further comprising a wire connected to at least one of the output terminals of the circuit protection device, wherein the wire passes through the current transformer.
12. The power distribution unit of claim 10 , further comprising a busbar connected to at least one of the output terminals of the circuit protection device, wherein the busbar passes through the current transformer.