1 - SPDC
... A PTC device is one which undergoes a change in resistance of typically several decades over a very narrow temperature range. These devices consist working material arranged between two metal electrodes. The working material is a special type of either ceramic (see clause 5.1), or polymer (see claus ...
... A PTC device is one which undergoes a change in resistance of typically several decades over a very narrow temperature range. These devices consist working material arranged between two metal electrodes. The working material is a special type of either ceramic (see clause 5.1), or polymer (see claus ...
Electrical Measurement Safety
... Leakage currents (common mode noise) • To measure, place current clamp around all three motor conductors at the inverter output • Use an oscilloscope to examine the CMN waveform • Possible solutions: special EMI suppression cables, isolation transformers on the line input, or a common mode choke ...
... Leakage currents (common mode noise) • To measure, place current clamp around all three motor conductors at the inverter output • Use an oscilloscope to examine the CMN waveform • Possible solutions: special EMI suppression cables, isolation transformers on the line input, or a common mode choke ...
95C-10939 - ML6984, ML7984 Series 4000 Direct Coupled Valve
... to prevent electrical shock and equipment damage. 2. All wiring must comply with applicable local electrical codes, ordinances and regulations. 3. Make certain that the voltage and frequency of the power supply correspond to the rating of the device. 4. DO NOT electrically operate the ML_984 actuato ...
... to prevent electrical shock and equipment damage. 2. All wiring must comply with applicable local electrical codes, ordinances and regulations. 3. Make certain that the voltage and frequency of the power supply correspond to the rating of the device. 4. DO NOT electrically operate the ML_984 actuato ...
Comparison between NERC VAR-001-1a and Alberta VAR-001-AB-1a Voltage and Reactive Control
... 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 ...
... 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 ...
UT64CAN333x CAN FD Transceivers
... o The CAN bus is not actively driven during recessive (logic high) transmission and actively driven during the dominant (logic low) transmission. During this time, the differential voltage of both 5 V and 3.3 V devices is the same; however, the common mode output voltage will vary between the 5 V an ...
... o The CAN bus is not actively driven during recessive (logic high) transmission and actively driven during the dominant (logic low) transmission. During this time, the differential voltage of both 5 V and 3.3 V devices is the same; however, the common mode output voltage will vary between the 5 V an ...
A New Algorithm for Digital Low-impedance Protection of Busbars
... 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 ...
... 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 ...
Chapter 1 Getting Start - Technica-M
... probe and connect it to CH1 of the oscilloscope. When using the probe hook-tip, insert the tip onto the probe firmly to ensure a proper connection. ■ Attach the probe tip to the Probe Compensator and the reference lead to the ground connector, select CH1, and then press the “AUTOSET“ button into the ...
... probe and connect it to CH1 of the oscilloscope. When using the probe hook-tip, insert the tip onto the probe firmly to ensure a proper connection. ■ Attach the probe tip to the Probe Compensator and the reference lead to the ground connector, select CH1, and then press the “AUTOSET“ button into the ...
Student Biographies
... For ID of 0.5 mA the source voltage would be 6,000(0.0005) or 3 Volts which means the gate to source voltage is 5-3 or 2 Volts which is greater than the threshold voltage (+1 Volt) and the device is on. But is it saturated? The drain is at 10-(6,000)(0.0005) or 7 Volts VDS=7-3 or 4 Volts Since VDS ( ...
... For ID of 0.5 mA the source voltage would be 6,000(0.0005) or 3 Volts which means the gate to source voltage is 5-3 or 2 Volts which is greater than the threshold voltage (+1 Volt) and the device is on. But is it saturated? The drain is at 10-(6,000)(0.0005) or 7 Volts VDS=7-3 or 4 Volts Since VDS ( ...
Occupancy monitor
... fault-controlled, sensor switch 22 which responds to the events which mark the beginning and the end of occu detection occurs, the printer 73 returns the detector identi?cation comparison pulses via a feedback line 70 pancy or of a fault condition. Switch 22 is connected in to said other decimal cou ...
... fault-controlled, sensor switch 22 which responds to the events which mark the beginning and the end of occu detection occurs, the printer 73 returns the detector identi?cation comparison pulses via a feedback line 70 pancy or of a fault condition. Switch 22 is connected in to said other decimal cou ...
WC-WCAP3-C - Listen Technologies Corporation
... device shall come with an additional priority, next-in-line, and system volume adjustment buttons to allow control over participants using the system. The device shall support voting sessions when connected to voting software. The chairman unit shall include three voting buttons to select yes, no, o ...
... device shall come with an additional priority, next-in-line, and system volume adjustment buttons to allow control over participants using the system. The device shall support voting sessions when connected to voting software. The chairman unit shall include three voting buttons to select yes, no, o ...
PowerFlex 70 Adjustable Frequency AC Drive Installation Instructions
... damage or a reduction in product life. Wiring or application errors, such as, undersizing the motor, incorrect or inadequate AC supply, or excessive ambient temperatures can result in malfunction of the system. ATTENTION: This drive contains ESD (Electrostatic Discharge) sensitive parts and assembli ...
... damage or a reduction in product life. Wiring or application errors, such as, undersizing the motor, incorrect or inadequate AC supply, or excessive ambient temperatures can result in malfunction of the system. ATTENTION: This drive contains ESD (Electrostatic Discharge) sensitive parts and assembli ...
Preparation of Papers for IUST International Journal of Engineering
... collapse increase faster than delivery of the apparent power and by using local phasors’ magnitudes and angles, a change in apparent power line flow in a time interval is exploited for computation of the voltage collapse criterion. In [18] by means of the singular ...
... collapse increase faster than delivery of the apparent power and by using local phasors’ magnitudes and angles, a change in apparent power line flow in a time interval is exploited for computation of the voltage collapse criterion. In [18] by means of the singular ...
Advanced Commercial Power System Protection Practices
... configuration. The latter systems operate the same as an ungrounded system if the system loses its grounding point or if the grounding impedance is very high. In an ungrounded power system there is no intentional connection to ground and loads are connected phase-to-phase. Fig. 1 shows a single-line ...
... configuration. The latter systems operate the same as an ungrounded system if the system loses its grounding point or if the grounding impedance is very high. In an ungrounded power system there is no intentional connection to ground and loads are connected phase-to-phase. Fig. 1 shows a single-line ...
Power Management
... the reason is that there is a tradeoff between the useful power required for data transmission and the power dissipated in the form of heat at the power amplifier usually, the dissipation power (heat energy) increases as the transmission power decreases in fact most commercially available tran ...
... the reason is that there is a tradeoff between the useful power required for data transmission and the power dissipated in the form of heat at the power amplifier usually, the dissipation power (heat energy) increases as the transmission power decreases in fact most commercially available tran ...
Dorman Smith
... This range of shunts provides an accurate DC millivolt signal, exactly proportional to the system current to drive ammeter indicators, overload protection and control devices. The use of high quality materials, advanced manufacturing techniques and rugged design provides maximum reliability, even in ...
... This range of shunts provides an accurate DC millivolt signal, exactly proportional to the system current to drive ammeter indicators, overload protection and control devices. The use of high quality materials, advanced manufacturing techniques and rugged design provides maximum reliability, even in ...
STATIC FREQUENCY CONVERTERS – A FLEXIBLE AND COST
... converter systems instead of the more traditional single phase transformer solution for 25 kV 50Hz traction power supply. The static frequency converter (SFC) solution is already well established for railway systems with lower frequencies like 16.7 Hz and 25 Hz. A detailed analysis will emphasize th ...
... converter systems instead of the more traditional single phase transformer solution for 25 kV 50Hz traction power supply. The static frequency converter (SFC) solution is already well established for railway systems with lower frequencies like 16.7 Hz and 25 Hz. A detailed analysis will emphasize th ...
fire detection systems fire detection systems
... the screw connection terminals that do not fit in the former PCB is reduced dimensions. It also provides spark-gap discharge protectors for each in or outbound connection, improving the degree of protection against atmospheric discharge interference. ...
... the screw connection terminals that do not fit in the former PCB is reduced dimensions. It also provides spark-gap discharge protectors for each in or outbound connection, improving the degree of protection against atmospheric discharge interference. ...
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.