CA3130, CA3130A Datasheet
... potential of +7.5V with respect to negative supply Terminal 4. Figure 3 contains data showing the variation of input current as a function of common-mode input voltage at TA = 25oC. These data show that circuit designers can advantageously exploit these characteristics to design circuits which typic ...
... potential of +7.5V with respect to negative supply Terminal 4. Figure 3 contains data showing the variation of input current as a function of common-mode input voltage at TA = 25oC. These data show that circuit designers can advantageously exploit these characteristics to design circuits which typic ...
Design control and protection for medium voltage switchgear Carl-Johan Nylund
... For the new SWG a hardware PLC system was needed. This system handles all the signals and control for our Medium voltage switchgear. These signals can be breaker positions, earth breaker positions and alarms. For the PLC system ABB products CI810B, DI810 and AI810 were used. The S800 series is a pro ...
... For the new SWG a hardware PLC system was needed. This system handles all the signals and control for our Medium voltage switchgear. These signals can be breaker positions, earth breaker positions and alarms. For the PLC system ABB products CI810B, DI810 and AI810 were used. The S800 series is a pro ...
Digital Computer Solution of Electromagnetic
... Ik(t- T) = exp (- (R'/L')r) (- (1/Z)em(t- T) -im,k(t -T)). Unfortunately, power lines are not distortionless, since G' is usually negligible (or a very complicated function of voltage if corona is to be taken into account). The distributed series resistance with G' = 0 can easily be approximated by ...
... Ik(t- T) = exp (- (R'/L')r) (- (1/Z)em(t- T) -im,k(t -T)). Unfortunately, power lines are not distortionless, since G' is usually negligible (or a very complicated function of voltage if corona is to be taken into account). The distributed series resistance with G' = 0 can easily be approximated by ...
ELEC 3105 Lecture 17 Real Transformer
... compensators on line tripped one after the other....With the loss of the last static var compensator, voltage dropped so drastically on the La Grande network (0.2 p.u.) that all five lines to Montréal tripped through loss of synchronism (virtual fault), and the entire network separated. The loss of ...
... compensators on line tripped one after the other....With the loss of the last static var compensator, voltage dropped so drastically on the La Grande network (0.2 p.u.) that all five lines to Montréal tripped through loss of synchronism (virtual fault), and the entire network separated. The loss of ...
Regulations relating to maritime electrical installations
... The Convention of 1974 on the Safety of Life at Sea (SOLAS), with subsequent amendments, applies to vessels above 500 gross register tons in international traffic and passenger vessels registered for more than 12 passengers in international traffic. SOLAS was laid down by the IMO (International Mari ...
... The Convention of 1974 on the Safety of Life at Sea (SOLAS), with subsequent amendments, applies to vessels above 500 gross register tons in international traffic and passenger vessels registered for more than 12 passengers in international traffic. SOLAS was laid down by the IMO (International Mari ...
MC34151, MC33151 High Speed Dual MOSFET Drivers
... Each totem pole Drive Output is capable of sourcing and sinking up to 1.5 A with a typical ‘on’ resistance of 2.4 W at 1.0 A. The low ‘on’ resistance allows high output currents to be attained at a lower VCC than with comparative CMOS drivers. Each output has a 100 kW pulldown resistor to keep the M ...
... Each totem pole Drive Output is capable of sourcing and sinking up to 1.5 A with a typical ‘on’ resistance of 2.4 W at 1.0 A. The low ‘on’ resistance allows high output currents to be attained at a lower VCC than with comparative CMOS drivers. Each output has a 100 kW pulldown resistor to keep the M ...
Specification of an Electric Power System
... to their light weight and good discharge capacity. LiPos have a typical service life of 100 – 300 cycles, depending on duty. They have a “nominal voltage” of 3.7V/cell, a fully charged voltage of 4.2V/cell, an operating voltage of ~3.3V/cell, and a minimum cell voltage of 2.6V – 3.0V/cell. They must ...
... to their light weight and good discharge capacity. LiPos have a typical service life of 100 – 300 cycles, depending on duty. They have a “nominal voltage” of 3.7V/cell, a fully charged voltage of 4.2V/cell, an operating voltage of ~3.3V/cell, and a minimum cell voltage of 2.6V – 3.0V/cell. They must ...
DES 70/10 Operating Instructions
... apparatus is kept in a safe operating mode. Repairs Repairs may be made by authorised personnel only or by the manufacturer. It is dangerous for the user to open the unit or make repairs to it. Danger Do ensure that during the installation of the DES 70/10 no apparatus is connected to the electrical ...
... apparatus is kept in a safe operating mode. Repairs Repairs may be made by authorised personnel only or by the manufacturer. It is dangerous for the user to open the unit or make repairs to it. Danger Do ensure that during the installation of the DES 70/10 no apparatus is connected to the electrical ...
Upgrading the Rotor Ground Fault Protection on Electric Generators
... plant) or initiate alarms at the onset of field ground faults. But the truth is that many older generators have no protection at all or have older protective relays that are not working properly. There is nothing worse than thinking that you are protected when you are really not. The challenge of re ...
... plant) or initiate alarms at the onset of field ground faults. But the truth is that many older generators have no protection at all or have older protective relays that are not working properly. There is nothing worse than thinking that you are protected when you are really not. The challenge of re ...
Transient Stability Improvement of Multi Machine Power System
... mismatch between the mechanical power into the machine and its electrical output. The machine which needs to be controlled through SVC is determined on the basis of oscillation made by it. The acceleration of the two machines at node I, j is given by[5] δij= ῲo/2(ΔPi/ Hi – ΔPj/ Hj) = EFij ...
... mismatch between the mechanical power into the machine and its electrical output. The machine which needs to be controlled through SVC is determined on the basis of oscillation made by it. The acceleration of the two machines at node I, j is given by[5] δij= ῲo/2(ΔPi/ Hi – ΔPj/ Hj) = EFij ...
G690/G691
... 140ms min Power-On Reset Pulse Width 10µA Supply Current Guaranteed Reset Valid to VCC = +1V Power Supply Transient Immunity No External Components 3-Pin SOT-23 and SC-70-3(SOT-323) Packages ...
... 140ms min Power-On Reset Pulse Width 10µA Supply Current Guaranteed Reset Valid to VCC = +1V Power Supply Transient Immunity No External Components 3-Pin SOT-23 and SC-70-3(SOT-323) Packages ...
Demonstrate knowledge of single and three phase transformers
... The self induced voltage of the primary winding (V /1 in Figure 4) will be only slightly less than the supply voltage (V1) (due to small internal winding losses) and will oppose any change in the magnetic field and therefore V1. Only a small current will flow; this is required to drive the magnetic ...
... The self induced voltage of the primary winding (V /1 in Figure 4) will be only slightly less than the supply voltage (V1) (due to small internal winding losses) and will oppose any change in the magnetic field and therefore V1. Only a small current will flow; this is required to drive the magnetic ...
CP-240 CP-260 CP
... obtained directly from the IDRC for warranty repairs. No liability will be accepted if returned without such permission. ...
... obtained directly from the IDRC for warranty repairs. No liability will be accepted if returned without such permission. ...
Better by design
... for use within the access platform industry, insulates the PCB from the application of at least 1kV on any part of the joystick's body. This improves operator safety and machine stability in the event of hazards such as the platform coming into contact with electric cables. Those joysticks with sign ...
... for use within the access platform industry, insulates the PCB from the application of at least 1kV on any part of the joystick's body. This improves operator safety and machine stability in the event of hazards such as the platform coming into contact with electric cables. Those joysticks with sign ...
Investigation of PWM using Inductor-Switch for each Leg of
... ABSTRACT: Many researchers have been done on PWM switching methods for finding better schemes to supply the loads, which have lower harmonics in outputs. In SPWM, semiconductor switches are directly connected to rectified voltage in output of rectifier. In this paper, the novel technique of using In ...
... ABSTRACT: Many researchers have been done on PWM switching methods for finding better schemes to supply the loads, which have lower harmonics in outputs. In SPWM, semiconductor switches are directly connected to rectified voltage in output of rectifier. In this paper, the novel technique of using In ...
Electrical substation
A substation is a part of an electrical generation, transmission, and distribution system. Substations transform voltage from high to low, or the reverse, or perform any of several other important functions. Between the generating station and consumer, electric power may flow through several substations at different voltage levels.Substations may be owned and operated by an electrical utility, or may be owned by a large industrial or commercial customer. Generally substations are unattended, relying on SCADA for remote supervision and control.A substation may include transformers to change voltage levels between high transmission voltages and lower distribution voltages, or at the interconnection of two different transmission voltages. The word substation comes from the days before the distribution system became a grid. As central generation stations became larger, smaller generating plants were converted to distribution stations, receiving their energy supply from a larger plant instead of using their own generators. The first substations were connected to only one power station, where the generators were housed, and were subsidiaries of that power station.