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Current and Voltage Different types of loads High Voltage Safety Fundamentals W. Maes Department of Marine Engineering Antwerp Maritime Academy HV, 2015 Willem Maes High Voltage Safety
Transcript of High Voltage Safety - Fundamentalsmagelhaes.hzs.be/willem/assorted/HV/Printable/Fundamentals.pdf ·...
Current and VoltageDifferent types of loads
High Voltage SafetyFundamentals
W. Maes
Department of Marine EngineeringAntwerp Maritime Academy
HV, 2015
Willem Maes High Voltage Safety
Current and VoltageDifferent types of loads
Outline
Willem Maes High Voltage Safety
Current and VoltageDifferent types of loads
Electric CurrentVoltage
Outline
Willem Maes High Voltage Safety
Current and VoltageDifferent types of loads
Electric CurrentVoltage
Current
Current is the quantity of electrons wich flow through amaterial.
Symbol is IUnity is ampere or ADirect Current or DCAlternative current AC
Willem Maes High Voltage Safety
Current and VoltageDifferent types of loads
Electric CurrentVoltage
Current
Current is the quantity of electrons wich flow through amaterial.
Symbol is IUnity is ampere or ADirect Current or DCAlternative current AC
Willem Maes High Voltage Safety
Current and VoltageDifferent types of loads
Electric CurrentVoltage
Current
Current is the quantity of electrons wich flow through amaterial.
Symbol is IUnity is ampere or ADirect Current or DCAlternative current AC
Willem Maes High Voltage Safety
Current and VoltageDifferent types of loads
Electric CurrentVoltage
Current
Current is the quantity of electrons wich flow through amaterial.
Symbol is IUnity is ampere or ADirect Current or DCAlternative current AC
Willem Maes High Voltage Safety
Current and VoltageDifferent types of loads
Electric CurrentVoltage
Current
Figure : DC (red curve), AC (green curve). The horizontal axismeasures time.
Willem Maes High Voltage Safety
Current and VoltageDifferent types of loads
Electric CurrentVoltage
Outline
Willem Maes High Voltage Safety
Current and VoltageDifferent types of loads
Electric CurrentVoltage
Voltage
Voltage is the force that moves the electrons from one end tothe other.
The higher the voltage the harder it can push electronstrough a resistance.If the voltage is high enough it can even push electronstrough air.
Willem Maes High Voltage Safety
Current and VoltageDifferent types of loads
Electric CurrentVoltage
Voltage
Voltage is the force that moves the electrons from one end tothe other.
The higher the voltage the harder it can push electronstrough a resistance.If the voltage is high enough it can even push electronstrough air.
Willem Maes High Voltage Safety
Current and VoltageDifferent types of loads
Electric CurrentVoltage
Voltage
Willem Maes High Voltage Safety
Current and VoltageDifferent types of loads
Resistive loadInductive load
Outline
Willem Maes High Voltage Safety
Current and VoltageDifferent types of loads
Resistive loadInductive load
Resistive load
Electrical resistance is defined as the resistance to the flowof electrons trough a material.Every material has a certain resistance, even the bestconductors.When current flows through a material energy will bedissipated in the form of heat.The unity of resistance R is the Ω
Willem Maes High Voltage Safety
Current and VoltageDifferent types of loads
Resistive loadInductive load
Resistive load
Electrical resistance is defined as the resistance to the flowof electrons trough a material.Every material has a certain resistance, even the bestconductors.When current flows through a material energy will bedissipated in the form of heat.The unity of resistance R is the Ω
Willem Maes High Voltage Safety
Current and VoltageDifferent types of loads
Resistive loadInductive load
Resistive load
Electrical resistance is defined as the resistance to the flowof electrons trough a material.Every material has a certain resistance, even the bestconductors.When current flows through a material energy will bedissipated in the form of heat.The unity of resistance R is the Ω
Willem Maes High Voltage Safety
Current and VoltageDifferent types of loads
Resistive loadInductive load
Resistive load
Electrical resistance is defined as the resistance to the flowof electrons trough a material.Every material has a certain resistance, even the bestconductors.When current flows through a material energy will bedissipated in the form of heat.The unity of resistance R is the Ω
Willem Maes High Voltage Safety
Current and VoltageDifferent types of loads
Resistive loadInductive load
Resistive load
Willem Maes High Voltage Safety
Current and VoltageDifferent types of loads
Resistive loadInductive load
Resistive load
The value of resistance can be calculated with voltage andcurrent, from Ohm’s law:
R =UI
where resistance = R in Ω
voltage = U in voltand current = I in ampere
Willem Maes High Voltage Safety
Current and VoltageDifferent types of loads
Resistive loadInductive load
Resistive load
Resistive loads can be lighting, heating but also the losses fromsliprings and bad connections are resistive loads and thereforedissipate heat energy.
P = I2.R
where the power dissipated = P in WattI is the current in ampereand R the resistance in Ω
Willem Maes High Voltage Safety
Current and VoltageDifferent types of loads
Resistive loadInductive load
Outline
Willem Maes High Voltage Safety
Current and VoltageDifferent types of loads
Resistive loadInductive load
Inductive load
Inductance is the ability of an induction to store magneticenergy. and is typified by the behavior of a coil of wire inresisting any change of current through the coil, in other wordsany change of current in a coil takes time. Inductance L ismeasured in Henry’s. Examples of inductive loads are coilsmotors generators and transformators.
P = I2.R
where the power dissipated = P in WattI is the current in ampereand R the resistance in Ω
Willem Maes High Voltage Safety
Appendix For Further Reading
For Further Reading I
The RulesLloyds register of shipping.
The RulesABS.
Willem Maes High Voltage Safety
