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99068
99068

... B r i e f l y, phase trip corresponds to the actual load current through the conductor while ground trip is the unbalance of the three-phase currents. Ground tripping will trip all three phases below the phase trip minimum trip value since ground tripping can be the result of any unbalance on the sy ...
Behavior of three-phase induction motors with variable
Behavior of three-phase induction motors with variable

AN2835
AN2835

... document and strictly observed. The components must be protected against excessive strain, and in particular, no components are to be bent, or isolating distances altered during transportation, handling or use. The demonstration board contains electrostatically sensitive components that are prone to ...
5-Channel ESD Protection Array
5-Channel ESD Protection Array

... “Typical” parameters which may be provided in SCILLC data sheets and/or specifications can and do vary in different applications and actual performance may vary over time. All operating parameters, including “Typicals” must be validated for each customer application by customer’s technical experts. ...
Audio Power Amplifier Operation with Transformer Load
Audio Power Amplifier Operation with Transformer Load

Aalborg Universitet Kocewiak, Lukasz; Hjerrild, Jesper ; Bak, Claus Leth
Aalborg Universitet Kocewiak, Lukasz; Hjerrild, Jesper ; Bak, Claus Leth

RTR040N03
RTR040N03

... otherwise dispose of the same, no express or implied right or license to practice or commercially exploit any intellectual property rights or other proprietary rights owned or controlled by ROHM CO., LTD. is granted to any such buyer. Products listed in this document are no antiradiation design. ...
Limited Availability Product
Limited Availability Product

... been saturated, usually when the device has been subjected to a full-scale or high-current overload condition. The magnetic offset is largely dependent on the material used as a flux concentrator. The larger magnetic offsets are observed at the lower operating temperatures. Accuracy (ETOT). The accu ...
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... b. What is the terminal voltage of the generator if 1. It is loaded with the rated current at 0.8 PF lagging; 2. It is loaded with the rated current at 1.0 PF; 3. It is loaded with the rated current at 0.8 PF leading. c. What is the efficiency of this generator (ignoring the unknown electrical losse ...
May 2000 New Rail-to-Rail Output Op Amps Bring Precision Performance to Low Voltage Systems
May 2000 New Rail-to-Rail Output Op Amps Bring Precision Performance to Low Voltage Systems

... impedance will typically be larger than the op amp’s input noise. Input current noise is now the more important amplifier noise characteristic. The LT1881/LT1882/LT1884/LT1885 have very low input noise current, as shown in Table 1. Figure 7 graphs the total system noise due to amplifier input noise ...
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... transconductance amplifier (OTA) in monolithic chip for compact implementation of analog function circuits [13][15]. Thereafter several different applications of the DVCCTA have been presented in the technical literature, particularly from the area of frequency filters [15]-[17]. Among these, the au ...
handling and design guidelines
handling and design guidelines

... latch up the CMOS device, the output voltage must be greater than VDD + 0.5 V or less than VSS – 0.5 V and have sufficient current to trigger the SCR. The latch–up mechanism is similar for the inputs. Once a CMOS device is latched up, if the supply current is not limited, the device will be destroye ...
AN1681: Grounding Techniques
AN1681: Grounding Techniques

... circuit, Figure 1a. This circuit could represent a plethora of different systems-a flashlight, a coffee maker, or even an iPod. Figure 1b represents those circuits just as well. Of course, we don't typically think of ungrounding a circuit to turn it off, we think of disconnecting the power. The trut ...
Low Voltage System Configuration
Low Voltage System Configuration

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... ULTRA HIGH POWER DENSITY & USER-DEFINED HOT KEY DESIGN Chroma's 63200A series high power electronic loads with digital signal microprocessor (200MHz) built in have the optimal speed and control performance. The ultra high density power (6kW@4U) not only saves room, its super high voltage (0.015%+0.0 ...
Aalborg Universitet
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transformer protection
transformer protection

... pad-mounted transformers, and at other similar locations. When properly applied, E-Rated fuses can protect against high and low value fault currents. A supplemental device is needed in series to remove currents below the minimum melting current rating of the fuse. ...
Low voltage versatile telephone transmission circuit with dialler
Low voltage versatile telephone transmission circuit with dialler

... is influenced by R16 (limited by current) and the maximum output swing on the line at high currents is influenced by DC voltage VLN-SLPE (limited by voltage). In both these situations, the internal dynamic limiter in the sending channel prevents distortion when the microphone is overdriven. The maxi ...
TransPocket 150 and 180
TransPocket 150 and 180

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Evaluates: MAX16803 MAX16803 Evaluation Kit General Description Features

... 5) Connect a 350mA-rated LED between LED+ and LED-. 6) Turn on the power supply and increase the input voltage above 6.5V. The LED glows with full brightness. Measure the LED current, and it shows 150mA ±3.5%. 7) Increase the supply voltage to 16V and the LED current will be stable. Measure the LED ...
Identifying Motor Defects Through Fault Zone Analysis
Identifying Motor Defects Through Fault Zone Analysis

... (VFD’s) as mentioned previously. The presence of harmonics in a distribution system results in excessive heat from the increased current demands. A load designed to pull 100 amps at full load may draw now 120 amps if the harmonic distortion is high. This additional current can lead to insulation dam ...
Improved Phase Shedding Techniques in Interleaved Converters
Improved Phase Shedding Techniques in Interleaved Converters

LM432 数据资料 dataSheet 下载
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... Texas Instruments Incorporated and its subsidiaries (TI) reserve the right to make corrections, modifications, enhancements, improvements, and other changes to its products and services at any time and to discontinue any product or service without notice. Customers should obtain the latest relevant ...
BM6203FS
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... The input threshold voltages of the control pins are 2.5V and 0.8V, with a hysteresis voltage of approximately 0.4V. The IC will accept input voltages up to the VCC voltage. When the same phase control pins are input high at the same time, the high side and low side gate driver outputs become low. D ...
Owner`s Manual for Rackmount Powerstrips, Isobar and Surge
Owner`s Manual for Rackmount Powerstrips, Isobar and Surge

... ULTIMATE Lifetime Insurance Policy. Reimbursement or restoration for data loss is not included. Power transients include spikes and surges on the AC power, data, or telephone lines that the TRIPP LITE products have been designed to protect against (as recognized by industry standards). AC Power Line ...
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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.
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