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Technical Data
Technical Data

... allows you to monitor your surge protective device from across the plant or across the world. ■ AdVisor and SuperVisor monitoring display panels are completely removable and can be installed ...
Residual current devices in LV
Residual current devices in LV

... main protection precautions to be taken are distance and insulation. The RCD can detect a fault current flowing through a person and, as such, is specified, regardless of the earthing system, in final distribution as an additional protection. Its operating threshold, as shown in the table in figure ...
Marine Electrical Check List
Marine Electrical Check List

... the cold tap run for a minute to clear metal ions out of the pipes and use a well rinsed, glass or plastic container to transfer. ...
07st_q
07st_q

... (ii) Give a possible reason to explain why the graph does not pass through the origin. (1 mark) (iii) The current measured by the light-beam galvanometer is zero for very high switching frequencies (~2 kHz). Explain. (1 mark) (b) A capacitor is formed by using the two square metal plates with 6 mm s ...
HBM MM CDM Classifications
HBM MM CDM Classifications

Evaluate: MAX14589E/MAX14594E/ MAX14589E/MAX14594E/ MAX14689 MAX14689 Evaluation Kits
Evaluate: MAX14589E/MAX14594E/ MAX14589E/MAX14594E/ MAX14689 MAX14689 Evaluation Kits

... provide termination to match the typical 50Ω source resistance of the network analyzer, allowing for easy evaluation of these parameters. The ability to connect external DC bias voltages at test points T7 and T8 further simplifies evaluation of AC characteristics, while using a network analyzer that ...


... The output signal from the photomultiplier is current pulses, where each pulse correspond to a detected photon. This current pulses are converted to voltage pulses by a current to voltage converter. Some of the voltage pulses generted are caused by noise, and thereby not desired. To eliminate them, ...
by ZHAOBING TIAN
by ZHAOBING TIAN

... useful sensor types due to their high sensitivities and relatively relaxed requirement on the stability of the optical source’s power level. In-line optical interferometric sensors received further attention as a result of compactness and robustness to the reference channel instability. Long period ...
An Ultra-Wideband Self-Calibrating Frequency Divider
An Ultra-Wideband Self-Calibrating Frequency Divider

... much wider. The 120% locking range percentage is much higher than other dividers. The varied current consumption makes the comparison slightly difficult, since the typical Figure of Merit (FoM) does not apply. Using both the minimum and maximum power dissipation, it is found that the proposed divide ...
Worksheet 3: Series vs Parallel Circuits and Combo`s
Worksheet 3: Series vs Parallel Circuits and Combo`s

... 10. Explain how the loop rule can be used to explain your answer to question 2. Combo Circuits – Some circuits off a combination of series and parallel. They are casually referred to by some as combination circuits but they are really just DC circuits. The difficulty with them lies in the fact that ...


... 3.5 Electrical test requirements. The electrical test requirements shall be the subgroups specified in table II. The electrical tests for each subgroup are defined in table I. 3.6 Marking. The part shall be marked with the PIN listed in 1.2 herein. In addition, the manufacturer’s PIN may also be mar ...
Frequently Asked Questions (FAQs)
Frequently Asked Questions (FAQs)

... protectors that I currently install in my panels with the CCP? A: UL 1077 supplementary protectors are being misapplied and used for branch circuit protection in numerous industrial control panel applications throughout the industry. They are intended to be used as a component within a finished pro ...
Product Guide Low Energy LED Flex Lighting
Product Guide Low Energy LED Flex Lighting

Improved Calibration of Instruments for Small Direct Currents
Improved Calibration of Instruments for Small Direct Currents

... denoted. Also, uncertainties corresponding to the actual CMC entries of PTB [7] are shown, achieved with the ‘capacitor charging’ (filled squares) and ‘voltage across shunt’ (open squares) methods. ...
ISL Series SPECIFICATION - Solid State Controls, Inc.
ISL Series SPECIFICATION - Solid State Controls, Inc.

... 5.2.2 AC output voltage shall be single-phase; 120 VAC, 60 Hz; or 220 VAC, 50 Hz (Split-phase voltages and other singlephase voltages may also be specified). 5.2.3 AC output voltage regulation shall be ± 2% 5.2.4 Total harmonic distortion (THD) shall be ≤ 5% with linear load; ≤ 7.5% with non-linear ...
LTM9012 - Quad 14-Bit, 125Msps ADC with
LTM9012 - Quad 14-Bit, 125Msps ADC with

... The LTM®9012 is a 4-channel, simultaneous sampling 14-bit µModule® analog-to-digital converter (ADC) with integrated, fixed gain, differential ADC drivers. The low noise amplifiers are suitable for single-ended drive and pulse train signals such as imaging applications. Each channel includes a lowpa ...
AD5243,48 - Analog Devices
AD5243,48 - Analog Devices

... devices are ideal for high accuracy and stability-variable resistance adjustments. The wiper settings are controllable through the I2C-compatible digital interface. The AD5248 has extra package address decode pins, AD0 and AD1, allowing multiple parts to share the same I2C, 2-wire bus on a PCB. The ...
MAX7321 I C Port Expander with 8 Open-Drain I/Os 2
MAX7321 I C Port Expander with 8 Open-Drain I/Os 2

... The MAX7321 2-wire serial-interfaced peripheral features eight open-drain I/O ports with selectable internal pullups and transition detection. Any port may be used as a logic input or an open-drain output. Ports are overvoltage protected to +6V independent of supply voltage. All I/O ports configured ...
A. POWER METERS-Advanced
A. POWER METERS-Advanced

... 62053-22 Class 0.5S for Real Energy and revenue meters. b) The Power Meter shall be accurate to 0.25% of reading + .025% of full scale for power and energy. Voltage and current shall be ...
4.0 operation - Always On UPS Systems
4.0 operation - Always On UPS Systems

Ringing Reduction Techniques for NexFET High
Ringing Reduction Techniques for NexFET High

... As discussed in the Background section, the fundamental problem of parasitic ringing is caused by high speed switching of the devices which injects excess energy into the parasitics during the switching transient. The two primary sources of this excess energy are fast current transients (di/dt), and ...
Evaluation of Cryogenic Components Begin 2009
Evaluation of Cryogenic Components Begin 2009

... Another Idea: Charge Detector for Adjustment ...
DG3257 - Vishay
DG3257 - Vishay

... CMOS process, the DG3257 provides low parasitic capacitance, handles bidirectional signal flow with minimized phase distortion. Guaranteed 1.4 V logic high threshold makes it possible to interface directly with low voltage MCUs. ...
The Oscilloscope - Crompton Instruments
The Oscilloscope - Crompton Instruments

A. POWER METERS-Advanced
A. POWER METERS-Advanced

... 62053-22 Class 0.5S for Real Energy and revenue meters. b) The Power Meter shall be accurate to 0.25% of reading + .025% of full scale for power and energy. Voltage and current shall be ...
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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.
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