Raychem Testing Locating Faults Engineering Specifications
... Fault type: Short to ground Equipment required: High resistance cable fault locator The high resistance cable fault locator is used to locate a "short to ground" where the conductor continuity is okay, but insulation resistance is less than 1 MΩ. These instruments are usually based on a Wheatstone b ...
... Fault type: Short to ground Equipment required: High resistance cable fault locator The high resistance cable fault locator is used to locate a "short to ground" where the conductor continuity is okay, but insulation resistance is less than 1 MΩ. These instruments are usually based on a Wheatstone b ...
$doc.title
... if initially out of lock is defined as the capture range. The capture range for phase detector 1 is dependent on the loop filter design. The capture range can be as large as the lock range, which is equal to the VCO frequency range. To see how the detector operates, refer to Figure 7. When two squar ...
... if initially out of lock is defined as the capture range. The capture range for phase detector 1 is dependent on the loop filter design. The capture range can be as large as the lock range, which is equal to the VCO frequency range. To see how the detector operates, refer to Figure 7. When two squar ...
Laboratory of the circuits and signals
... 4. Build active LPF and HPF using single RC chains as shown in the figures 3 and 4 (do not forget change values of circuit components. Voltage source amplitude 1V, frequency – 1 MHz, voltage source resistance – 75 , load resistance – 75 . Measure in Bode plots cutoff frequencies and transient sl ...
... 4. Build active LPF and HPF using single RC chains as shown in the figures 3 and 4 (do not forget change values of circuit components. Voltage source amplitude 1V, frequency – 1 MHz, voltage source resistance – 75 , load resistance – 75 . Measure in Bode plots cutoff frequencies and transient sl ...
PTC305C Series PTC Thermistors Motor Start Packages
... THESE DEVICES ARE INTENDED FOR APPLICATION ON 240 VOLT LINES OR SYSTEMS WITH MAXIMUM LINE VOLTAGE UP TO 265 V. The PTC305C20, 21 and 22 are also used on 120 V systems where the motor is designed to use same run capacitor and PTC as equivalent 230 V compressor. ...
... THESE DEVICES ARE INTENDED FOR APPLICATION ON 240 VOLT LINES OR SYSTEMS WITH MAXIMUM LINE VOLTAGE UP TO 265 V. The PTC305C20, 21 and 22 are also used on 120 V systems where the motor is designed to use same run capacitor and PTC as equivalent 230 V compressor. ...
CAST COIL
... The finished primary and secondary coil must be hermetically sealed in epoxy utilizing a proven manufacturing system that demonstrates its ability to minimize hot spots and partial discharge. An induced partial discharge test shall be performed on each winding. The induced partial discharge test sha ...
... The finished primary and secondary coil must be hermetically sealed in epoxy utilizing a proven manufacturing system that demonstrates its ability to minimize hot spots and partial discharge. An induced partial discharge test shall be performed on each winding. The induced partial discharge test sha ...
Phase-Locked Loop MC74HC4046A
... if initially out of lock is defined as the capture range. The capture range for phase detector 1 is dependent on the loop filter design. The capture range can be as large as the lock range, which is equal to the VCO frequency range. To see how the detector operates, refer to Figure 7. When two squar ...
... if initially out of lock is defined as the capture range. The capture range for phase detector 1 is dependent on the loop filter design. The capture range can be as large as the lock range, which is equal to the VCO frequency range. To see how the detector operates, refer to Figure 7. When two squar ...
Razor: A Low-Power Pipeline Based on Circuit-Level Timing
... breadth of applications for these devices widens, a single operating point is no longer sufficient to efficiently meet their processing and power consumption requirements. For example, MPEG video playback requires an order-of-magnitude higher performance than playing MP3s. However, running at the pe ...
... breadth of applications for these devices widens, a single operating point is no longer sufficient to efficiently meet their processing and power consumption requirements. For example, MPEG video playback requires an order-of-magnitude higher performance than playing MP3s. However, running at the pe ...
lecture guide – unit 19
... Reference: Delmar’s Standard Textbook of Electricity, Second Edition CAPACITORS Objectives Upon completing this unit, you should 1. List the three factors that determine the capacitance of a capacitor 2. Discuss the electrostatic charge 3. Discuss differences between nonpolarized and polarized capac ...
... Reference: Delmar’s Standard Textbook of Electricity, Second Edition CAPACITORS Objectives Upon completing this unit, you should 1. List the three factors that determine the capacitance of a capacitor 2. Discuss the electrostatic charge 3. Discuss differences between nonpolarized and polarized capac ...
MAX3170 +3.3V, Multiprotocol, 3 Tx/3 Rx, Software- Selectable Clock/Data Transceiver General Description
... The state of the mode select pins M0, M1, and M2 determines which serial interface protocol is selected (Table 1). The state of the DCE/DTE input determines whether the transceiver will be configured as a DTE or a DCE serial port. When the DCE/DTE input is logic HIGH, driver T3 is activated and rece ...
... The state of the mode select pins M0, M1, and M2 determines which serial interface protocol is selected (Table 1). The state of the DCE/DTE input determines whether the transceiver will be configured as a DTE or a DCE serial port. When the DCE/DTE input is logic HIGH, driver T3 is activated and rece ...
Heliarc® 252 ac/dc and Heliarc® 352 ac/dc
... with the instructions provided. This equipment must be checked periodically. Malfunctioning or poorly maintained equipment should not be used. Parts that are broken, missing, worn, distorted or contaminated should be replaced immediately. Should such repair or replacement become necessary, the manuf ...
... with the instructions provided. This equipment must be checked periodically. Malfunctioning or poorly maintained equipment should not be used. Parts that are broken, missing, worn, distorted or contaminated should be replaced immediately. Should such repair or replacement become necessary, the manuf ...
Super-Positioning of Voltage Sources for Fast Assessment of Wide
... author’s attention towards efficient algorithms for Thévenin equivalent computations. However, the field of application of Thévenin equivalents is broad and the work presented may inspire others working with different applications of the famous network equivalent. Thévenin equivalent representati ...
... author’s attention towards efficient algorithms for Thévenin equivalent computations. However, the field of application of Thévenin equivalents is broad and the work presented may inspire others working with different applications of the famous network equivalent. Thévenin equivalent representati ...
3355LectureSet04v24
... • We will use the two assumptions to solve op amp circuits more quickly. We will show how to do this in the next part. • The point to recognize here is that negative feedback can be very useful, and makes op amps circuits much easier to analyze, and therefore much easier to design with. Many circuit ...
... • We will use the two assumptions to solve op amp circuits more quickly. We will show how to do this in the next part. • The point to recognize here is that negative feedback can be very useful, and makes op amps circuits much easier to analyze, and therefore much easier to design with. Many circuit ...
Trame Rapport
... - measurement of partial discharges (routine test for Trihal transformer), - short circuit test (implemented in an approved laboratory) - noise level measurements. (All these tests are defined in the IEC 60076-1 to 60076-5 standards) ...
... - measurement of partial discharges (routine test for Trihal transformer), - short circuit test (implemented in an approved laboratory) - noise level measurements. (All these tests are defined in the IEC 60076-1 to 60076-5 standards) ...
Resistive opto-isolator
Resistive opto-isolator (RO), also called photoresistive opto-isolator, vactrol (after a genericized trademark introduced by Vactec, Inc. in the 1960s), analog opto-isolator or lamp-coupled photocell, is an optoelectronic device consisting of a source and detector of light, which are optically coupled and electrically isolated from each other. The light source is usually a light-emitting diode (LED), a miniature incandescent lamp, or sometimes a neon lamp, whereas the detector is a semiconductor-based photoresistor made of cadmium selenide (CdSe) or cadmium sulfide (CdS). The source and detector are coupled through a transparent glue or through the air.Electrically, RO is a resistance controlled by the current flowing through the light source. In the dark state, the resistance typically exceeds a few MOhm; when illuminated, it decreases as the inverse of the light intensity. In contrast to the photodiode and phototransistor, the photoresistor can operate in both the AC and DC circuits and have a voltage of several hundred volts across it. The harmonic distortions of the output current by the RO are typically within 0.1% at voltages below 0.5 V.RO is the first and the slowest opto-isolator: its switching time exceeds 1 ms, and for the lamp-based models can reach hundreds of milliseconds. Parasitic capacitance limits the frequency range of the photoresistor by ultrasonic frequencies. Cadmium-based photoresistors exhibit a ""memory effect"": their resistance depends on the illumination history; it also drifts during the illumination and stabilizes within hours, or even weeks for high-sensitivity models. Heating induces irreversible degradation of ROs, whereas cooling to below −25 °C dramatically increases the response time. Therefore, ROs were mostly replaced in the 1970s by the faster and more stable photodiodes and photoresistors. ROs are still used in some sound equipment, guitar amplifiers and analog synthesizers owing to their good electrical isolation, low signal distortion and ease of circuit design.