ATEX Installation Drawings and Instructions
... The main terminal compartment with type of protection “nC” is separated into two sections. One section contains two screw terminals for supplying power to the device. The other section contains 6 terminals for general I/O. In the case of Fieldbus or Profibus, these terminals are energy limited. The ...
... The main terminal compartment with type of protection “nC” is separated into two sections. One section contains two screw terminals for supplying power to the device. The other section contains 6 terminals for general I/O. In the case of Fieldbus or Profibus, these terminals are energy limited. The ...
Derivadores PA e FF INGLES.vp
... Physical Layer The Profibus PA and Foundation Fieldbus H1 protocol is a bi-directional digital communication that allows the network interconnection of several equipment in the field, doing acquisition execution and functions, as well as the procedures and monitoring stations (IHMs) through supervis ...
... Physical Layer The Profibus PA and Foundation Fieldbus H1 protocol is a bi-directional digital communication that allows the network interconnection of several equipment in the field, doing acquisition execution and functions, as well as the procedures and monitoring stations (IHMs) through supervis ...
Keysight Technologies Techniques for Advanced Cable Testing
... Selection of the characteristic impedance is often related to propagation characteristics of the transmission line. For example, Figure 3 shows the curves for the attenuation, power handling and voltage breakdown on a coaxial cable as a function of ratio D/d. The values shown in the figure have all ...
... Selection of the characteristic impedance is often related to propagation characteristics of the transmission line. For example, Figure 3 shows the curves for the attenuation, power handling and voltage breakdown on a coaxial cable as a function of ratio D/d. The values shown in the figure have all ...
Field Test Technology Relationships to Cable Quality
... The higher voltage can help determine the basic perforA number of test methods and devices use dc voltages. mance level of the cable. However, the meter readings are There is extensive data to indicate limitations of dc. First there subject to so many variations that consistent results are seldom is ...
... The higher voltage can help determine the basic perforA number of test methods and devices use dc voltages. mance level of the cable. However, the meter readings are There is extensive data to indicate limitations of dc. First there subject to so many variations that consistent results are seldom is ...
AN10658 Sending I C-bus signals via long communications cables
... relatively large capacitance without significantly disturbing the logic signals. That enables a system to be designed with high tolerance to ESD. When there are long cable runs there can be significant differences in the local equipment ‘ground’ potential at each end of the cable. Generally it will ...
... relatively large capacitance without significantly disturbing the logic signals. That enables a system to be designed with high tolerance to ESD. When there are long cable runs there can be significant differences in the local equipment ‘ground’ potential at each end of the cable. Generally it will ...
Aalborg Universitet Full Scale Test on a 100km, 150kV AC Cable Stella
... To simulate the system it was used PSCAD/EMTDC. The influences of the cable semiconductive layers were considered by changing the insulation permittivity [4]. The conductor and screen resistances were corrected to consider respectively the 81 segments of the conductor and the number of copper wires ...
... To simulate the system it was used PSCAD/EMTDC. The influences of the cable semiconductive layers were considered by changing the insulation permittivity [4]. The conductor and screen resistances were corrected to consider respectively the 81 segments of the conductor and the number of copper wires ...
Megger TDR1000/3 Time-Domain Reflectometer User Manual
... faults, when the true end of the cable is not visible. If the measurement is made from both ends, then the combined answer should equal the expected length of the cable. Even when the true end of the cable is visible on the display, the reflections after the fault may be too obscure to analyze clear ...
... faults, when the true end of the cable is not visible. If the measurement is made from both ends, then the combined answer should equal the expected length of the cable. Even when the true end of the cable is visible on the display, the reflections after the fault may be too obscure to analyze clear ...
Aalborg Universitet
... line system with HVAC power cables [4]. This introduces new difficulties as a high voltage cable possesses 20-50 times higher capacitance per unit length compared to an equivalent overhead line [11, p. 157]. Because the capacitance is high, the production of reactive power is also high. The addition ...
... line system with HVAC power cables [4]. This introduces new difficulties as a high voltage cable possesses 20-50 times higher capacitance per unit length compared to an equivalent overhead line [11, p. 157]. Because the capacitance is high, the production of reactive power is also high. The addition ...
... Twisted-pair cables are used in telephone lines to provide voice and data channels. The local loop—the line that connects subscribers to the central telephone office—commonly consists of unshielded twisted-pair cables. We discuss telephone networks in Chapter 9. The DSL lines that are used by the tel ...
ATEX Installation Instructions for Micro Motion MVD
... Connect are trademarks of Micro Motion, Inc., Boulder, Colorado. Micro Motion is a registered trade name of Micro Motion, Inc., Boulder, Colorado. The Micro Motion and Emerson logos are trademarks and service marks of Emerson Electric Co. All other trademarks are property of their respective owners. ...
... Connect are trademarks of Micro Motion, Inc., Boulder, Colorado. Micro Motion is a registered trade name of Micro Motion, Inc., Boulder, Colorado. The Micro Motion and Emerson logos are trademarks and service marks of Emerson Electric Co. All other trademarks are property of their respective owners. ...
How (not) to Fry a Thermometer: Testing a slow monitoring and
... connected to the computer at the near end, in parallel with the cable, new transmission problems arose. In this configuration, the ADC does not show up in searches, but a thermometer on the same circuit board often does. It is possible that the ADC has a lower tolerance for noise on the line than th ...
... connected to the computer at the near end, in parallel with the cable, new transmission problems arose. In this configuration, the ADC does not show up in searches, but a thermometer on the same circuit board often does. It is possible that the ADC has a lower tolerance for noise on the line than th ...
2016 China International Conference on Electricity Distribution
... resistive to the surrounding soil. These kinds of cable faults can then be pinpointed by using the step voltage method. Faults in low voltage cables as well as pilot cables (signal lines) are often difficult to pin-point, this is because the high voltages that applied to the cables do not have suffi ...
... resistive to the surrounding soil. These kinds of cable faults can then be pinpointed by using the step voltage method. Faults in low voltage cables as well as pilot cables (signal lines) are often difficult to pin-point, this is because the high voltages that applied to the cables do not have suffi ...
700 Series Manual - Categories On Devar, Inc.
... The series 820 Sacrificial Anode provides cathodic protection against galvanic corrosion for our submersible pressure transducers. Galvanic corrosion occurs when dissimilar metals are placed in contact with an electrolyte. This condition causes a potential difference to exist between the two metals, ...
... The series 820 Sacrificial Anode provides cathodic protection against galvanic corrosion for our submersible pressure transducers. Galvanic corrosion occurs when dissimilar metals are placed in contact with an electrolyte. This condition causes a potential difference to exist between the two metals, ...
IOSR Journal of Electrical and Electronics Engineering (IOSR-JEEE) e-ISSN: 2278-1676,p-ISSN: 2320-3331,
... Vacuum magnetic permeability 4 x 10 7 Tm/ A Relative magnetic permeability of the conductor ...
... Vacuum magnetic permeability 4 x 10 7 Tm/ A Relative magnetic permeability of the conductor ...
TDR Pulse Echo
... fault, such as a nick in the cable outer sheath and water ingress. The operator should be familiar with the equipment and its use and be as accurate as possible. If the cable is on the surface then being a few metres out on the trace would not be as important as if it was in troughing or buried as t ...
... fault, such as a nick in the cable outer sheath and water ingress. The operator should be familiar with the equipment and its use and be as accurate as possible. If the cable is on the surface then being a few metres out on the trace would not be as important as if it was in troughing or buried as t ...
Installation Manual
... Failure to follow these instructions will result in damage to the product and serious or fatal injury. If this product is supplied with a protective shipping cover(s), remove this shipping cover(s) and replace with the appropriate HV insulated cap(s) or connector(s) before submerging or energizing t ...
... Failure to follow these instructions will result in damage to the product and serious or fatal injury. If this product is supplied with a protective shipping cover(s), remove this shipping cover(s) and replace with the appropriate HV insulated cap(s) or connector(s) before submerging or energizing t ...
PUB‐NLH‐470 Island Interconnected System Supply Issues and Power Outages Page 1 of 5 Q.
... Figure 3 – Spare Cable Discharge Current versus Time for Discharge Through a 100Ω and a 400Ω Pre‐insertion Resistor ...
... Figure 3 – Spare Cable Discharge Current versus Time for Discharge Through a 100Ω and a 400Ω Pre‐insertion Resistor ...
Fiber-Optic Cable
... from three major defects. First, it has considerable plasticity, which makes connector application difficult. Second, adhesive bonding is not possible. And third, it is practically insoluble in organic solvents. These three factors keep this type of fiber-optic cable from being particularly popular ...
... from three major defects. First, it has considerable plasticity, which makes connector application difficult. Second, adhesive bonding is not possible. And third, it is practically insoluble in organic solvents. These three factors keep this type of fiber-optic cable from being particularly popular ...
TN 5900-1 Triboelectric Effects in High Precision Temperature
... triboelectric current subsides. Using the same method as above, we can calculate that the apparent current instability is approximately 2.5 nA. Figure 3 shows the results of experiment #2, with the low temp resistor attached directly to the instrument back panel instead of the cable. In this case, t ...
... triboelectric current subsides. Using the same method as above, we can calculate that the apparent current instability is approximately 2.5 nA. Figure 3 shows the results of experiment #2, with the low temp resistor attached directly to the instrument back panel instead of the cable. In this case, t ...
AS-i e Tuner AC1146 04
... can still be used. The AS-i voltage is in addition on an M12 socket. Tuning is not made automatically but is started by means of the teach-in button. By this process the bus termination impedance is changed until AS-i communication has reached its optimum. This may be useful with Safety at Work appl ...
... can still be used. The AS-i voltage is in addition on an M12 socket. Tuning is not made automatically but is started by means of the teach-in button. By this process the bus termination impedance is changed until AS-i communication has reached its optimum. This may be useful with Safety at Work appl ...
Measuring the True Length of a Cable Pair with
... to a loop that is shorted at the far end to first calculate the resistance. Resistance (R) is calculated using Ohm’s law (R=E/I), dividing the ohmmeter source voltage (E) by the measured current (I). Cable resistance is typically .041 ohm per foot for 26-gauge cable at 68° F. Knowing this conversion ...
... to a loop that is shorted at the far end to first calculate the resistance. Resistance (R) is calculated using Ohm’s law (R=E/I), dividing the ohmmeter source voltage (E) by the measured current (I). Cable resistance is typically .041 ohm per foot for 26-gauge cable at 68° F. Knowing this conversion ...
m-bus wiring guidelines
... device (bus structure). The M-Bus is polarity independent and needs no line termination resistors at the end of the cables. Any cable type may be used as long as the cable is suitable for 42 V / 500 mA. Shielding is not necessary and not recommended since the capacity of the cable should be minimize ...
... device (bus structure). The M-Bus is polarity independent and needs no line termination resistors at the end of the cables. Any cable type may be used as long as the cable is suitable for 42 V / 500 mA. Shielding is not necessary and not recommended since the capacity of the cable should be minimize ...
MX-NPA-Box: Quick Install - Industrial Networking Solutions
... • If directly connecting two network devices without a switch (e.g. camera to a computer without Auto-MDIX) to the MX-NPA-Box, you should attach one of the devices using a crossover patch cable. As an alternative, you can swap the wires on the LSA terminal as follows: Terminal 1 with terminal 3 and ...
... • If directly connecting two network devices without a switch (e.g. camera to a computer without Auto-MDIX) to the MX-NPA-Box, you should attach one of the devices using a crossover patch cable. As an alternative, you can swap the wires on the LSA terminal as follows: Terminal 1 with terminal 3 and ...
NIRComponentLabelingConvention36
... assembly where the cable end is connected, the mechanism associated with the cable, and the function of the device connected. The second line of the label will identify the device ID and a number that identifies a connector on that device. The labels toward the center of the cable identify the cable ...
... assembly where the cable end is connected, the mechanism associated with the cable, and the function of the device connected. The second line of the label will identify the device ID and a number that identifies a connector on that device. The labels toward the center of the cable identify the cable ...
Cable television
Cable television is a system of delivering television programming to paying subscribers via radio frequency (RF) signals transmitted through coaxial cables or light pulses through fiber-optic cables. This contrasts with broadcast television, in which the television signal is transmitted over the air by radio waves and received by a television antenna attached to the television. FM radio programming, high-speed Internet, telephone service, and similar non-television services may also be provided through these cables.The abbreviation CATV is often used for cable television. It originally stood for Community Access Television or Community Antenna Television, from cable television's origins in 1948: in areas where over-the-air reception was limited by distance from transmitters or mountainous terrain, large ""community antennas"" were constructed, and cable was run from them to individual homes. The origins of cable broadcasting are even older as radio programming was distributed by cable in some European cities as far back as 1924.Earlier cable television was analog, but since 2000s all cable operators have switched to or are in process of switching to digital cable television.