Exact(5)
This proposed protection configuration ensures accurate and robust protection option for the system with low investment in protection cost, and continuous operation of the healthy zones during a fault event in other zone of the MTDC network is achieved.
Step 4: After isolating the faulty part within the faulty zone remaining part of the network can be restarted and can be reconnected to the healthy zones depending on fault location.
The following steps are considered for the proposed system to clear a DC fault allowing the healthy zones to remain operational: Step 1: Using local current measurement in the converter arms and DC sides to detect the fault.
In case of a DC fault event, DC-DC converters which have inherent DC fault isolation capability provide 'firewall' between the faulty and healthy zones such that the faulty DC network zone can be quickly isolated from the remaining of the MTDC network to allow the healthy DC network zones to remain operational.
Pieces of cartilage were selected from visually healthy zones of the specimens.
Similar(55)
The DC over current flowing through the DC-DC converter is quickly detected resulting an immediate block of the DC-DC converter isolating Zone 2 from the healthy Zone 1.
The main purpose of this work is to keep the healthy zone in the large MTDC system operational all times following a DC fault by means of using DC-DC converter at strategic location.
"I think it's been more in the unhealthy zone than the healthy zone for the last few weeks," Minnemeyer said.
Observe at the left side a circular, black lesion of hair loss that integrates to the right side contralateral "healthy" zone with a mirror triangular attractor, where a white lesion and high hair density in helicoidal pattern can be identified.
The two specimens were removed from a lobectomy sample, in a healthy zone, remote from the cancer, and fixed in 4% paraformaldehyde.
Since CD4+ alveolar lymphocytosis in the healthy zone of patients with localized pulmonary tuberculosis was reported previously [ 10], an increased CD4+/CD8+ ratio in BAL may imply intense immunosensitivity toward BCG antigens.
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