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seCTion 2 - Comlibris
seCTion 2 - Comlibris

... 4. Electric circuit and measuring instruments 5. Use of the universal instrument 6. Ohm’s laws 7. The rehostat and the potentiometer 8. The electric circuit with several charges in series 9. The electric circuit with several charges in parallel 10. Electric nets 11. Some method ...
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... Remote Cold Junction Compensation: With this option, cold junction is measured externally and provided to the module by the BIU, using its %AQ output references. If the module has multiple thermocouples that are configured for remote compensation, the same compensation value must be used by each. ...
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... commercial and industrial applications usually include a panelboard for receiving electrical power from a utility source. The electrical power is then delivered from the panelboard to designated branch circuits supplying one or more loads. ...
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... it can be concluded that the transients around 25 − 35% SoC, as well as around 60 − 80% SoC are reaching their wellrelaxed state much slower compared to the transients at the remaining SoCs. This behavior has not been observed for high temperatures (30 ◦C), but it becomes more and more present for d ...
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... 4.1.3. Earth Fault Switching Tests (Test Duty 6a) Requirements This switch has been designed for use on systems with isolated neutrals. IEC 60265-1 clauses 1.101 and 6.101.8.6 require the breaking current be determined when the switch is operated during a phase-to-earth fault on one phase. Isolated ...
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... smaller the value is, the more resolution you will get in your simulation. A typical value is 1nsec. TSTOP is the time when you want your transient analysis to stop. This value will depend on the frequency of your input signal(s) and the time it takes for your circuit to produce its final output. TS ...
dc motor control card - Country Living Grain Mills
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... smaller the value is, the more resolution you will get in your simulation. A typical value is 1nsec. TSTOP is the time when you want your transient analysis to stop. This value will depend on the frequency of your input signal(s) and the time it takes for your circuit to produce its final output. TS ...
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... The HEF4052B is a dual 4-channel analog multiplexer/demultiplexer with common channel select logic. Each multiplexer/demultiplexer has four independent inputs/outputs (nY0 to nY3) and a common input/output (nZ). The common channel select logic includes two select inputs (S1 and S2) and an active LOW ...
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A New Algorithm for Digital Low-impedance Protection of Busbars
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... have gained more trust due to advances in technology (fast processors, fiber optic communications) and sophisticated algorithms making them immune to CT saturation. This paper presents a new algorithm for microprocessorbased low-impedance differential relay (Section III) that combines the differenti ...
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... and the Transmission Owner's facilities to be maintained by each generator. The Transmission Operator shall provide the voltage or Reactive Power schedule to the associated Generator Operator and direct the Generator Operator to comply with the schedule in automatic voltage control mode (AVR in serv ...
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Opto-isolator



In electronics, an opto-isolator, also called an optocoupler, photocoupler, or optical isolator, is a component that transfers electrical signals between two isolated circuits by using light. Opto-isolators prevent high voltages from affecting the system receiving the signal. Commercially available opto-isolators withstand input-to-output voltages up to 10 kV and voltage transients with speeds up to 10 kV/μs.A common type of opto-isolator consists of an LED and a phototransistor in the same opaque package. Other types of source-sensor combinations include LED-photodiode, LED-LASCR, and lamp-photoresistor pairs. Usually opto-isolators transfer digital (on-off) signals, but some techniques allow them to be used with analog signals.
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