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The tension of an electromotive force.


Showing results: 5836 - 5850 of 6611 items found.

  • Circuit Breaker Analyzers & Timers

    IBEKO Power AB

    CAT circuit breaker analyzers and timers are advanced standalone or a PC controlled instruments for circuit breaker maintenance. Typical application areas of CAT instruments are medium and high voltage substations at electric power generation, transmission, and factories of switchgear. Also, industrial environments and electric power distribution are suitable application areas for these circuit breaker testing instruments.DV Power CAT circuit breaker testing instruments are portable and lightweight. They are designed for performing mechanical operations intended for circuit breakers testing according to standards IEC 62271-100 and IEEE C37.09.These instruments measure:the timing of main contacts, pre-insertion resistor contacts, auxiliary contacts operations,coil currents,motion parameters,voltage recording,main circuit resistance,arcing contacts wipe,and any relevant analog signal.Motion transducer channels provide measuring a displacement of the circuit breaker moving parts, contact wipe, over-travel, rebound, damping time, and average velocity. Even more, CAT circuit breaker analyzer optionally has a built-in micro-ohmmeter. Hence, it provides the main circuit resistance measurement and dynamic resistance measurement. Dynamic resistance measurement is an effective method for arcing contacts condition assessment.

  • Mission Critical, Fault Tolerant Power Supplies

    Series HSF - Kepco, Inc.

    - Hot-swappable plug-in power supplies.- Designed to be combined in an N+1 fault-tolerant power system.- Front panel voltage adjustment trimmer for adjustment of output voltage.- Built-in forced current sharing and or-ing diodes.- May also be used independently as a multi-output power supply.- Designed to be sustainable - new models are backward compatible with existing racks.- Available in 1U and 3U sizes. Mounts in 19-, 23-, and 24-inch equipment racks.- All models include power factor correction (PFC).- Full service customized DC power distribution systems can match power supply output(s) with your load(s).- I/O connections via 24 pin connector that plugs into rack adapter. External connections are made via rack adapter.- Surface mount technology permits minimum mounting space.- Entire RA 19 racks populated with HSF power supplies can be connected in parallel, parallel-redundant or series.- HSF are CE Marked per per the LVD, EMC and RoHS 2 Directives. See applicable Declaration of Conformity.- Compliant with UL 8750, Standard for LED Equipment,- Watch video of NEBS GR-63-CORE earthquake and office vibration testing.

  • Oil Tan Delta Tester

    OTD - Megger Group Ltd.

    The Oil Tan Delta (OTD) is a laboratory instrument, which measures the Tan Delta, Resistivity and Relative Permittivity of insulating liquids. These tests give a wider picture of the overall quality of the insulating oil, and will indicate if there is any contamination. Megger has developed features of the OTD to ensure that productivity levels within laboratories are maximised. The microprocessor controlled inductive heater means that there is uniformity of temperature throughout the cell, in compliance with IEC 60247, and for cooling a fan effectively speeds up the cell cooling time. The instrument has a temperature measuring range of 10 to 110 C, with an accuracy of 1 C. It can be set to preheat before testing takes place. The automated oil drain facility negates the need to move the oil vessel. User safety is paramount and with this in mind, Megger have designed independent and dual redundant high voltage cut-off circuitry. If for any reason the user needs to abort the test, this can be done so by pressing any key, immediately terminating the test and removing the high voltage. The design of the cell components maximise oil fill rate but minimise turbulence in oil flow and eliminate trapping of air. With only 32 cell components, it is easy to assemble and disassemble.

  • Wide-range High-power DC Power Supply

    IT6500 Series - I-TECH Electronic Co., Ltd

    With ITECH’s latest technology, the IT6500 series offers a full-featured high-performance power test solution. With fast response these DC power supplies provide users with a new level of power supply performance. From 800W to 30 kW, the whole series include more than 100 models. The maximum output voltage and current is up to 1000V and 1200A respectively. With its autoranging capabillity, it also has a super wide range of voltage and current applications. Users can choose the power supply that fits their testing requirements perfectly. In combination with the IT-E501 power dissipater unit, the current sinking capacity of IT6500C can be 100%, 200%, 300% and the power sinking up to 300% of the Sourcing capability. As a high-speed two-quadrant power supply, IT6500C (1800W-30kW) series has a priority function so as to realize high-speed current transition between power supply mode and electronic load mode, to achieve fast switching between sourcing and sinking current, even can achieve seamless switching under certain conditions. IT6512, IT6513 and IT6500C series power supplies provide built-in DIN40839 and ISO-16750-2 testing curves, support solar panel I-V curve simulation function.

  • 3-Phase Power & Harmonics Analyzer

    Extech PQ3350 - Extech Instruments Corporation

    Power measurements and analysis + datalogging of single and 3-phase/3-wire or 3-phase/4-wire systems (up to 52,428 single phase readings or 17,476 3-phase readings). Large backlighting LCD displays up to 35 parameters in one screen. Clamp-on True RMS power measurements with on-screen Harmonics display. Simultaneous display of Harmonics and Waveform. Display of Waveform with Peak Values (1024 samples/period). Analysis of Total Harmonic Distortion (THD-F). Maximum Demand (MDkW, MW, kVA, MVA) with programmable period. Adjustable CT ratio (1 to 600) and VT ratio (1 to 3000). Graphic Phase diagram with 3-Phase system parameters. 3-phase Voltage or Current Unbalanced Ratio (VUR, VIR) and Unbalanced Factor (d0%, d2%). Calculated Unbalanced Current through Neutral Line (In). Capture 28 Transient events (including Dip, Swell and Outage) with programmable threshold (%). Optically isolated USB interface with software to download Waveforms, Power Parameters and Harmonics. Includes 4 voltage leads with alligator clips and retractable plunger clips, 8 AA batteries, universal AC adaptor, software, USB interface cable, and case. Current Probes sold separately.

  • Battery Extra Load Units

    BXL Series - IBEKO Power AB

    BXL is an extra load unit designed to be used with DV Power’s BLU series battery testers. However, this unit is a universal add-on device. Because of that, it is compatible, as an additional load, with any other discharge/capacity tester in the market.In case when discharge current exceeds the capacity of a single BLU device, BXL can increase the discharge capacity. There are no limitations on the number of extra load units that can be connected in parallel to the main battery tester.A system of BLU and BXL instruments enables performing the capacity test in an accurate, user-friendly way. Also, all instruments are in accordance with battery testing standards: IEEE 450-2010, IEEE 1188-2005, IEEE 1106-2015, IEC 60896-11/22, and other relevant standards.These units can be used on any type of battery string, such as lead-acid, Li-Ion, Ni-Cd, etc. They test battery strings with voltages in the range of 5,25 – 500 V DC. On the other hand, current up to 250 A can be discharged through the BXL internal structure.The instrument simulates a constant resistance load during the discharge test. Several resistances can be set for different battery nominal voltage levels. This makes BXL extremely flexible in selecting its load capabilities.

  • Natural Cooling Input 380VAC 3 Phase to Output 190-300VDC 10A-40A Rectifier Battery Charger

    SD230D20ZZ - Zhejiang Sandi Electric Co., Ltd

    SANDI “SD” series intelligent high-frequency switch power supply modules are specially developed to meet the demands of modern DC system. The charger rectifiers are designed with world leading patent technology “resonant voltage type soft switching power supply technology”. They feature high efficiency and stability, intelligent control, small size and light weight. Standard RS-485 interface, easy to connect with automation system. “Four remotes” functions, intelligent management. The products are widely used in power plant, substations and etc..Main characteristic of the moduleModularization design, realize N+1 backup;The friendly man-machine interface. Large screen to show, realize man-machine dialogue operate really.RS-485 inrerface, realize “4 remote” function with monitor machine.High efficiency, Nearly 95%-96%;Lightly, 230V/10A natural cooling module only 9kg;Little volume, 230V/10A natural cooling module dimension only 325mm×230mm×130mm;After the full bridge rectifying circuit rectifies 3-phase AC to DC, then adjusted by reactive PFC, power factor>0.94;Function against reverse pour: each module has been added diode against reverse pour at output terminal.LED digital screen, digital calibrate, stable current ,fault alarm Main characteristic of the ModulesThe friendly man-machine interface. LED digital screen, digital calibrate, stable current ,fault alarmHigh efficiency, up to 95%-96%;Light weight, Small sizeAfter the full bridge rectifying circuit rectifies 3-phase AC to DC, then adjusted by reactive PFC, power factor>0.94;Unequal current ratio of parallel connection<+/-3%, can ensure twenty modules work well by parallel connection.Multiple protections including over/under voltage, current limiting, short-circuit, parallel protection, over-temperature protection.Output over-voltage protectionTo prevent the disastrous accident caused by output overvoltage, there is overvoltage protection circuit in the module. Once the output voltage is higher than the threshold, the module locks up automatically and fault indication light is on, the faulty module quits work automatically and doesn’t affect the normal operation of the entire system.Output current limiting protectThe output current cannot increase infinitely. The maximum value of the output current of each module is limited to the rated output current 105%, in this range, the output current value of the module is continuously adjustable. If the load output of the module, the module will play down the output voltage.Output short-circuit protectionWhen short circuit, the output voltage drops to 0 immediately. Limit the short circuit current under 15% of rated output current. The module will not be damaged under short circuit state for a time, and resumes to work automatically after debugging. Module parallel protectionThere is parallel protection circuit in each module to ensure that when the fault module quits the system, the normal work of other modules and the system won’t be effect.Output over-current protectionThe output current cannot increase infinitely. If overloaded, the output voltage decreases automatically to protect the power components. The over current protection can be resumed automatically.

  • Calibration

    Kiwa Dare

    Calibrations of electronic equipment is one of the activities that Kiwa Dare offers to its clients. these calibrations are under accreditation in the field of electrical quantities. Besides calibrations in the field of DC current, DC voltage and low frequency (test and measuring) equipment, Kiwa Dare is specialized in calibrating high frequency measuring equipment and in particular EMC equipment in a frequency range of (DC) 40 GHz. New the site validation calibrations whereby Kiwa Dare can calibrate shielded rooms (Faraday room) and anechoic chambers under accreditation.

  • Photonic Hall Effect

    HMS7000 - ECOPIA

    Classic hall effect measurement system is to read voltage difference made between both diagonal sides, when flowing current and applying magnet field strength, in perpendicular to flowing current direction. - Photonic hall effect measurement is to read various electrical properties by illuminating light of “various range of wavelength” on the sample, in addition to flowing current and applying magnet field strength. - It is great to see “RGB (Red, Green, Blue), Light intensity vs carrier density, carrier mobility, resistivity, hall coefficient”

  • Single Output Power Supplies

    CS1000 Series - Advanced Energy

    The CS1000 fanless power supplies deliver up to 1000 W with natural convection cooling. Available with 24-volt or 48-volt single outputs, the CS1000 operates off a universal AC input voltage of 85 to 264 VAC. The series provides intelligent analog and digital control and monitoring with PMBus™ (an open-standard digital power management capability). Control and monitoring features include AC fail, global remote/off, output voltage/current control as well a large suite of protection features, such as over-voltage, over-current, short-circuit, and over-temperature.

  • Miniature Solid-State Relays

    Series C47F - Teledyne Defense Electronics Relays & Coax Switch

    ​The Series C47F miniature solid-state relays utilize a photovoltaic generator driving high-performance power FET chips to provide low-output on resistance and high-output switching capability. The virtual elimination of offset voltage makes these relays ideal for low level switching applications as well. Bidirectional switching versions (Series C46F) are available. MSL 6Available options include:C47F-10 1.75A, 50Vdc Load; 3.8-32Vdc ControlC47F-20 1A, 90Vdc Load; 3.8-32Vdc Control C47F-30 0.6A, 180Vdc Load; 3.8-32Vdc ControlC47F-40 0.4A, 360Vdc Load; 3.8-32Vdc Control

  • Universal Counter

    SC-7205A - IWATSU Electronic Co., Ltd.

    A lineup of three new types of universal counters with high cost performance that features easy-to-use one key, one action, the user-friendly display guide and calculation functions support any application. The SC-7205A universal counter provides full capabilities including frequency, period, time interval, pulse width, phase, frequency ratio, duty cycle, event accumulation and peak voltage measuring, with simple operation. They are suitable for R&D and technical training as a basic measuring instrument as well as for production/inspection lines.

  • Linear Array

    ams AG

    Linear array sensors consist of a linear array of integrating photosensing pixels which measure incident light over a user-defined exposure time and generate a voltage or digital output which represents the light exposure at each pixel. The sensors are available in a variety of lengths and pixel resolutions. The analog output may be directly interfaced to an ADC for digital processing or for comparing black/white thresholds. Applications include contact image sensing, optical character recognition, edge detection, and object measurement in products such as copiers, document scanners and spectroscopy.

  • PXI Single 16x4 1-Pole 5A Power Matrix

    40-549-001 - Pickering Interfaces Ltd.

    The 40-549 is a single pole power matrix module, suitable for switching inductive/capacitive loads up to 5A with 110VDC/250VAC hot switching and 400VDC/250VAC cold switching. It is available in single 16x4, single 8x8, dual 8x4 or single 8x4 configurations. Connections are made via a front panel 25 way D-type male connector. Power Matrix Modules are intended for switching heavy AC or DC loads or for slaving large external relays, contactors and solenoids. The module is suitable for applications requiring switching of either mains voltage or DC current.

  • PXI Power Supply Modules

    Pickering Interfaces Ltd.

    Fixed power supply modules provide you with up to four separate voltage outputs isolated from the PXI backplane. Any combination of 3.3V, 5V, 12V or 15V can be specified with a maximum current capability of 4A for the 3.3V option; the software provides on/off control and status monitoring for each output. Dual programmable power supplies are capable of supplying up to 60 Watts of power. These are ideal solution for applications where a self contained test system with a high power supply power capability is required in a PXI format.

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