SWITCHING APPARATUS FOR FEEDING SYSTEM FOR OPTICAL CABLE
PURPOSE: To obtain a switching apparatus of feeding system for optical cable in which a high voltage hot-line can be switched accurately in safety in a short time through simple automatic operation requiring no manual operation. CONSTITUTION: When an output condition decision block B1 makes a decisi...
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| creator | DOI MASAYASU ASAOKA TOMOAKI KOTANI SUMIO SUDO FUJIO SHIBANO EIICHI |
| description | PURPOSE: To obtain a switching apparatus of feeding system for optical cable in which a high voltage hot-line can be switched accurately in safety in a short time through simple automatic operation requiring no manual operation. CONSTITUTION: When an output condition decision block B1 makes a decision that the differential voltage and current between respective output voltages and currents come within allowable ranges and detects a switching operation between power supply units 1A and 1B, a switching control block B3 temporarily turns all relay switches 181-184 ON to connect the power supply units 1A, 1B in parallel. Subsequently, the relay switch for a line to be connected is turned OFF and respective relay switches 181-184 are turned ON/OFF under a state where the potential across each relay switch is equalized thus eliminating discharge at the contact. |
| format | Patent |
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CONSTITUTION: When an output condition decision block B1 makes a decision that the differential voltage and current between respective output voltages and currents come within allowable ranges and detects a switching operation between power supply units 1A and 1B, a switching control block B3 temporarily turns all relay switches 181-184 ON to connect the power supply units 1A, 1B in parallel. Subsequently, the relay switch for a line to be connected is turned OFF and respective relay switches 181-184 are turned ON/OFF under a state where the potential across each relay switch is equalized thus eliminating discharge at the contact.</abstract><edition>6</edition><oa>free_for_read</oa></addata></record> |
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| subjects | CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTINGELECTRIC POWER CONVERSION OR DISTRIBUTION OF ELECTRIC POWER ELECTRIC COMMUNICATION TECHNIQUE ELECTRICITY GENERATION SYSTEMS FOR STORING ELECTRIC ENERGY TRANSMISSION |
| title | SWITCHING APPARATUS FOR FEEDING SYSTEM FOR OPTICAL CABLE |
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