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Current Alternates direction of flow cyclically.

See Also: Alternating Current


Showing results: 2416 - 2430 of 2443 items found.

  • Circuit Breaker Timer Kit

    CBT-Eco - Neutronics Manufacturing Co.

    *Input Supply: 230 V ± 10 %, AC, 50 Hz, 1 Phase (Ground must).*Display: 16 X 2 Big size LCD display with backlight.*Accuracy : Class 0.5*Resolution: 1 milli second*Count: 1 to 9999 milli second*Operation: Accurate Measurement for Close and Trip Command for BreakersThrough Trip-Free Operation C-O-C timing can be measure accurately.Up to 99 No. of Bounces for Close Operation on all three Pole can be count.(Model: CBT CP)Measure timing up to 7 numbers of Bounces on all pole.(Model: CBT CP)Reset for Next Measurement.Indicate the Status of Pole (Close /Open) during start of Test on LCD Display.*Front Panel : Operation Guide Sticker Plate, and Connectors. .(with Printer on Model: CBT CP*)Housing : Aluminum Carrying Case Enclosure.*Accessories : Mains Power Cable, Probe set of 5 MTR long, computer Interface cable for connecting with PC or Laptop and Bag. (Optional), User’s Manual and Test Report.*AVAILABLE MODEL:· Model: CBT CP, with PC Interface and software.· Model: CBT P, without PC Interface and without Software.

  • Gas Analyzers

    Snap-on Inc.

    Independent Handheld 5 Gas Analyzer or use with MODIS™ Link, VERDICT® and VERUS® Bluetooth® link. Fully Portable 5 Gas Analyzer, go anywhere, use anywhere 110 V AC and 12 V powered Internal rechargeable battery, up to one hour of use Ideal for road testing and mobile use Measures exhaust emissions for CO, CO2, HC, O2, NOx and AFR/Lambda Provides an instant assessment of an engine vehicle exhaust and catalytic converter MODIS, VERDICT® and VERUS® Link for enhanced real-time viewing Setup required with included software on USB stick Gather all the evidence required for effective and accurate vehicle diagnostics on one screen in real time View, graph, save and recall data Monitor and reduce vehicle emissions, improve driveability and fuel efficiency There are 255 memory locations in the analyzer to track and print data for the same or many different vehicles Compatible with gasoline, CNG, propane and diesel fuel types Annual calibration and sensor replacement performed at Crystal Lake Northern Repiar enter Meets required industry standard

  • Hybridization Oven

    REXMED ROV-201 - REXMED Industries Co., Ltd.

    MOD. ROV-201, AC 110/230V, Plug type: , Hybridization oven, HS CODE: 841780, UNCCS CODE: 484352, UMDNS CODE: 14410, Main construction: powder coated steel and SS304, Controller: Microprocessor based PID controller, water proof keypad with timer, ˚C/PV and ˚C/SV display and setting, Timer: 9999/min, 9999/hr, Timer has DELAY_ON and DELAY_OFF function and at the end of operation audio and visual warning, Working range: Ambient +5˚C~85˚C, Stability at 37˚C: ±0.1˚C, Sensor: PT 100Ω, Temperature audio and visual warning for AL-H and AL-L and OFS correction setting, Heater: 1.2KW, Shaking timer: 999/min, 999/hr, shaking timer can be set in second, minute or hour function and at the end of operation audio and visual warning, Motor: Noiseless powerful brushless induction motor 15W, Rotation: 5~60rpm adjustable, Rotator: for 8pcs(optional), Orbital: 20~250rpm adjustable, Platform: L30 X W20cm, Chamber: L35 X W25 X H42.5cm, Capacity: 37.2L, chamber with glass viewing window, Optional: Rotator for 8pcs X 1set

  • Automatic Vision Measuring Machine

    Sinowon Innovation Metrology Manufacture Ltd.

    Moving bridge structure, measured workpiece is fixed;◆ Four-axis CNC fully auto close loop control, auto measurement;◆ “00” grade “JINANQING”marble base and pillar, stable and reliable;◆ Imported open type linear scale, resolution is 0.1um, high accuracy, great stability;◆ Imported P grade linear guide, precision grinding ball screw and AC servo motor, ensure accuracy stability of system position;◆ Imported high definition color industry camera, ensure clear observation and stable measurement requirement;◆ 6.5X continue auto zoom lens, precision auto zoom, only need to make pixel calibration once time;◆ Programmable 5-ring 8-division LED surface illumination, contour parallel LED illumination, can realize 256 grade brightness adjustment intelligently;◆ Equipped with imported touch probe, realize 3D measurement;◆ With proprietary fully auto measuring software iMeasuring 4.2, powerful function, simple operation;◆ Optional laser probe, it can also be customized according to customer request;◆ Optional FexQMS Measuring Data Analysis and Real-time monitoring software which enhance program control and reduce material

  • 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.

  • Micro-Ohmmeters

    IBEKO Power AB

    Contact resistance measurement is one of the most important and common tests during switchgear manufacturing, commissioning and maintenance stages. Besides switchgear testing, the RMO digital micro-ohmmeters are designed for simple, safe and efficient testing of:disconnecting switches,high-current bus bar joints,cable splices,welding joints,and different high-current links in factory and high-induction field environments.All DV Power RMO micro-ohmmeters use Kelvin’s 4-point measurement principle which is the most convenient for very small resistance measurements. The measurements are accurate and in accordance with international standards for AC high-voltage circuit breakers testing (IEEE C37.09 and IEC 62271-100).Starting from 2003, DV Power has been a trend-setter on the market when our first 500 A micro-ohmmeter weighing only 8 kg (RMO500A / CPM500) was released.Currently, DV Power products portfolio includes 16 models, divided into 3 series:13 portable models: RMO-A (6) and RMO-G (7) series.6 handheld models: RMO-H (6) seriesThe instruments generate a user-selectable and ripple-free test current up to 800 A in an automatically regulated test ramp. Test current ramping significantly decreases the influence of the magnetic transients to measurement.

  • Multifunction Electrical Installations Meter

    MPI-525 - Sonel S.A.

    Possible measurementsShort-circuit loop measurement:*impedance measurement with 23 A current (44 A phase-to-phase) - short-circuit resistor R=10,*measurement range: 95...440 V, frequency 45...65 Hz,Short-circuit loop measurement with resolution 0,01, in distribution network without tiggering RCD (In30 mA):*automatic calculation of short-circuit, detection of phase voltage and phase-to-phase voltage,*additional UNI-Schuko plug for automatic measurement, AGT adapter for 3 phase network measurement.Testing of general and selective RCD with the rated differential current of 10,30,100,300,500 and 1000 mA. (Type AC, A and B).Measurement of insulation resistance:*with test voltage 250 V, 500 V, 1000 V, 2500 V,*measurement range up to 10G,*automatic discharging after measurement,*automatic measurement of all resistences in 3,4,5-wire cables using optional adapter AUTO-ISO,*acoustic signals in 5 sec intervals for insulation resistance characteristic,*elapsing T1, T2, T3 times (0...600 s) form measurement of absorption coefficients (DAR, PI or Ab1, Ab2)*safety measurement - protection against overvoltage.Measurement of earthing resistance.Bi-directional testing of PE wire continuity using 200 mA current.*Autocalibration of test leads.

  • 20MHz 2-Channel Digital Oscilloscope

    Extech MS420 - Extech Instruments Corporation

    Extech's MS420 20 MHz 2-Channel Digital Oscilloscope offers a range of capabilities for effective troubleshooting of electronics and electronically controlled electrical systems. With 20 MHz bandwidth and conveniences like auto-set which optimizes the position, range, time base, and triggering to assure a stable display of virtually any waveform, the MS420 can be used in field repairs or bench duty. To identify subtle problems, Peak Detect features a fast 50 ns glitch capture. Core functions like XY Mode, FFT function, Trigger Hold off, Waveform Math, Averaging Mode and Persistence Mode all ensure you can confidently troubleshoot problems using a variety of approaches. To start up recurring testing routines, you can store and recall up to 4 waveform screens and setups to save time from job to job. This CAT II-rated oscilloscope extends its functionality with complete DMM functions that are displayed on the large 3. 8" (97mm) color LCD display. The MS420 comes with two 1X/10X oscilloscope probes, test leads, Windows XP/Vista compatible USB software and cable, capacitor measuring module, adjustment screwdriver, AC adaptor/charger, hard carrying case, user manual, and manufacturer's one-year limited warranty.

  • 3U OpenVPX High Density Multifunction I/O Board

    68CB6 - North Atlantic Industries

    The 68CB6 is a Configurable Open Systems Architecture™ (COSA®) 3U OpenVPX™ board that is preconfigured with 10 different “inboard” I/O, measurement and communication functions. This Combination-function Board (CB) provides a full suite of some of the most common & useful function interfaces supporting many different applications. The 68CB6 features a wide but dedicated selection of functions: Standard Functionality Discrete I/O (DT1); Successive Approximation Register (SAR) ±100 V Analog-to-Digital (AD); Isolated High Voltage Analog-to-Digital (ADF); ±10 V Digital-to-Analog (DA); Thermocouple (TC1) or Resistance Temperature Detector (RT1); Full-bridge Strain Gauge (SG1); Transmission/gear box Chip Detection and Fuzz Burn (CD1); LVDT-to-Digital linear (LD6) displacement (position) measurement, AC Reference Source output (AC2); CAN bus communication (CB8). The 68CB6 offers unparalleled programming flexibility, a wide range of operating characteristics, and a unique design that eliminates the need for external intermediate circuit considerations such as pull-up resistors or mechanical configuration jumpers. Inboard functions are software controlled and memory addressed, accessed in similar COSA® modular fashion to maintain seamless common NAI Software Support Kit & API/library structures.

  • Coil Analyzers & Power Supplies

    IBEKO Power AB

    Coil analyzers and power supply units are portable and lightweight devices intended for use in harsh switchyard and industrial environments. The typical application is switchgear and circuit breaker testing when substation battery is not connected or available. An advantage over substation battery is enabled testing in under-voltage and over-voltage conditions. Furthermore, the stable voltage outputs with a very low ripple (<0,5%) enable an analysis of the coil and motor current graphs recorded with circuit breaker analyzers from different vendors.SAT40AD, POB30AD, and POB40AD are unique devices in the market due to their dual purpose:Power supply for coils and spring-charging motorsTesting circuit breaker’s coils, motor, and auxiliary circuitAll DV Power coil analyzers and power supply units have four separate outputs for opening and closing coils.SAT40AD has two powerful motor outputs (AC and DC) which can withstand up to 40 A inrush current.POB30AD and POB40AD have DC motor output rated up to 30 A and 40 A respectively. With the use of motor outputs, POB and SAT can also be used as a power source or a temporary battery charger.SAT40A II series instruments can be controlled via PC. The DV-Win application software is used to control both SAT and CAT (Circuit Breaker Analyzers & Timers) devices at the same time, making a unique test system for switchgear and circuit breaker testing.

  • 3-Phase Power & Harmonics Analyzer - Complete with 3000A 24" Flexible Current Clamp Probes

    Extech PQ3350-3 - Extech Instruments Corporation

    Complete with 3000A 18" flexible current clamp probes. 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). Flexible clamp probes can be used for wrapping around bus bars and wire bundles. 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 3 flexible current clamps, 4 voltage leads with alligator clips and retractable plunger clips, 8 AA batteries, universal AC adaptor, software, USB interface cable, and case.

  • 3-Phase Power & Harmonics Analyzer - Complete with 1200A 12" Flexible Current Clamp Probes

    Extech PQ3350-1 - Extech Instruments Corporation

    Complete with 1200A 12" flexible current clamp probes. 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). Flexible clamp probes can be used for wrapping around bus bars and wire bundles. 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 3 flexible current clamps, 4 voltage leads with alligator clips and retractable plunger clips, 8 AA batteries, universal AC adaptor, software, USB interface cable, and case

  • Hybridization Oven

    REXMED ROV-200 - REXMED Industries Co., Ltd.

    MOD. ROV-200, AC 110/230V, Plug type: , Hybridization oven, HS CODE: 841780, UNCCS CODE: 484352, UMDNS CODE: 14410, Main construction: powder coated steel and SS304, Controller: Microprocessor based PID controller, water proof keypad with timer, ˚C/PV and ˚C/SV display and setting, Timer: 9999/min, 9999/hr, Timer has DELAY_ON and DELAY_OFF function and at the end of operation audio and visual warning, Working range: Ambient +5˚C~85˚C, Stability at 37˚C: ±0.1˚C, Sensor: PT 100Ω, Temperature audio and visual warning for AL-H and AL-L and OFS correction setting, Heater: 1KW, Shaking timer: 999/min, 999/hr, shaking timer can be set in second, minute or hour function and at the end of operation audio and visual warning, Motor: Noiseless powerful brushless induction motor 15W, Rotation: 5~60rpm adjustable, Rotator: for 8pcs(optional), Reciprocal: 5~60rpm adjustable, Platform: L30 X W18cm(optional), Rocker: 5~60rpm adjustable, Platform: L29 X W22.5cm(optional), Chamber: L35 X W25 X H25cm, Capacity: 21.9L, chamber with glass viewing window, Optional: Rotator for 8pcs X 1set, reciprocal platform (L30 X W18cm) X 1set, rocker platform (L29 X W22.5cm) X 1set

  • Fuel Display Unit Tester

    MS 1125 - Meltronics Systemtech

    Fuel Display Unit Test Bench is a compact table-top test bench with front panel controls, indications, built-in signal simulator and necessary power supply for testing the serviceability of Fuel Display Unit of Helicopter. FTB operates on 230 V AC and supplies 28 V DC power to FDU. FTB is housed in a metallic cabinet FTB interfaces with both 61 Pin connector and 6-pin socket mounted on the rear panel of FDU by means of the cable connected to the unit.  FTB is fabricated utilizing off-the-shelf standard industrial/commercial components like rotary switches, toggle switches, press switches, test sockets, fuse holders, potentiometer etc. The Frequency generation circuit is integrated into FTB for the simulation of Fuel probe and flow rate signals. The frequency of the signal can be selected by means of a rotary switch Low amplitude sine wave signal is simulated for testing flow rates. Variable voltage DC power supply with a voltage range of 24 to 29 Volts is provided within FTB to power-up FDU. 5 V DC is provided for the operation of signal generating circuit (PIC Frequency Controller Board). An off-the-shelf Hand held battery operated Digital Multimeter (DMM) procured from the prominent manufacturer (FLUKE) is supplied with FTB for setting up and measurement of various parameters like Resistance, Voltage, Frequency etc.

  • 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.

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