Showing results: 4396 - 4403 of 4403 items found.
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B-1003 -
ROSS ENGINEERING CORPORATION
A key feature of our rotary switches is their simple mechanical design which results in conservative stress levels for trouble-free, long life use. In addition, each rotary switch has a reinforced chassis design utilizing G-10 or G-11 fire retardant anti-tracking coated epoxy glass insulation. G-7 silicone glass is used for special applications where RF or high temperatures are involved. Heavy duty contacts, specifically designed to minimize corona in the Ross rotaries, are made of highly conductive yet weld resistant alloy with high contact closing force. This high force gives our rotary switches high momentary current capability and a reputation for their ability to withstand high shock and vibration as well as other severe environmental conditions. Ratings to 150kV, to 200A. When immersed in insulating oil, fluid or gas, the voltage withstand value is at least doubled and the interrupt capability is much greater. In a gas atmosphere, no modification is required. However, immersion in oil or fluid may require modification in some cases, at an extra cost (optional). Each unit is either manually or electrically operated. One SPDT contact is standard on most units. The auxiliary contact is used as an interlock for protection against "Switching Hot".
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Series S -
Teledyne Defense Electronics Relays & Coax Switch
The Series S single-phase relays are designed for all types of loads. The design incorporates an SCR or triac output. The relays utilize optical isolation to protect the control from load transients. All contain an internal snubber for output protection. High-current models are excellent for motor and UPS control. Zero-Cross or Random switching options available.Available options include:S24D25 25A, 12-280Vrms, 600Vpeak Load; 4-30Vdc Control; Zero-CrossS24R40 40A, 12-280Vrms, 600Vpeak Load; 3-30Vdc Control; RandomS24D40 40A, 12-280Vrms, 600Vpeak Load; 4-30Vdc Control; Zero-CrossS24D40 40A, 12-280Vrms, 600Vpeak Load; 90-240Vac/Vdc Control; Zero-CrossS48R25 25A, 24-520Vrms, 1200Vpeak Load; 4-30Vdc Control; RandomS48D25 25A, 24-520Vrms, 1200Vpeak Load; 5-30Vdc Control; Zero-CrossS48D50 50A, 24-520Vrms, 1200Vpeak Load; 5-30Vdc Control; Zero-CrossS48R75 75A, 24-520Vrms, 1200Vpeak Load; 90-240Vac/Vdc Control; Zero-CrossS48A50 50A, 24-520Vrms, 1200Vpeak Load; 90-240Vac/Vdc Control; Zero-CrossS48A50-22/R 50A, 24-520Vrms, 1200Vpeak Load; 17-80Vac/Vdc Control; Zero-CrossS48R125 125A, 24-520Vrms, 1200Vpeak Load; 4-30Vdc Control; RandomS60D50 50A, 24-690Vrms, 1600Vpeak Load; 7-30Vdc Control; Zero-CrossS60D125 125A, 24-660Vrms, 1600Vpeak Load; 7-30Vdc Control; Zero-Cross
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63000 Series -
Chroma ATE Inc.
The 63000 Series programmable DC electronic loads are reliable, precision instruments primarily designed to test switching power suppl ies, A/D power suppl ies, power electronic components, adapters, 3C batteries and chargers. Its maximum 350W rated power makes it suitable for testing numerous types of lower power devices. The 63000 Series offers models in two operating voltages 150V models, with 250W and 350W power levels up to 60A in a single unit. Their compact and light weight design make these loads easy to move around which is ideal for R&D and design validation. Each model of the 63000 Series has unique user-def ined waveform (UDW) funct ion capable of simulating real-world custom waveforms. In addition, a data storage function has been built in for saving and recalling up to 100 stored settings at any time. For automated testing, these save and recall functions can save a great deal of time. The 63000 Series has 3 power ranges that can precisely measure the voltage and current in real time. Since short circuit testing is a critical test item, the 63000 provides short circuit simulation to effectively address application demands for power and automated testing.
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Instron
CEAST VisualIMPACT software is designed to control CEAST Pendulums and Drop Tower Series, manage tests and offer a user-friendly interface when using the Data Acquisition System. It records force and absorbed energy data related to impacts, visualizes and helps analyze the results and calculates resilience. The operator is guided through parameters setup by means of tables describing strikers and specimens that are filtered according to the test type and international standard selected. In the case of instrumented tests, many possibilities for data analysis and visualization are made available. The results are shown through comprehensive and customizable graphs and can be filtered by break type (only specimens with a selected break type are shown). Working with groups of test, the software performs a statistical analysis, and the operator can pick and discard single test results. Different measurement units can be selected. It is possible to print reports and to export data totally or partially. Recent improvements include the possibility to set a number of user profiles, including graphic settings, default printing options, advanced parameters for data analysis and so on, switching quickly from one another when looking at results. The introduction of a new Data Acquisition System (CEAST DAS 64K) in the Impact product line has also triggered a number of new capabilities for the SW, which is now able to process a more comprehensive calibration file for instrumented tups and hammers and manage DAS configurations with a wider range of data acquisition channels.
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Educated Design & Development, Inc.
Fast - All operator controls are located on the front panel to expedite testing. The entire test can be performed in a matter of seconds! Pays for itself in time and stress savings. Versatile - Measures Leakage Current in accordance with UL, CSA, EN, and IEC/ International Standards. Includes ability to perform open neutral, open ground, and line polarity forward/reverse test conditions. Adaptable - Universal rear panel receptacle allows for testing products with any plug configuration. Accurate - True RMS meter accurately measures both sinusoidal and non-sinusoidal waveshapes. This is important when testing products using a switch mode power supply which can generate non-sinusoidal leakage currents. Calibrated, traceable to NIST. Flexible - A front panel switch permits testing either through the power cord of the product under test, from surface/ patient connection-to-ground, or from surface/ patient connection-to-surface/ patient connection. Portable - Lightweight, with integral handle. Other Features - Product Ground Switching (grounding conductor maintained to device under test when not measuring leakage). Automatic front receptacle disconnect when configured in the 240V test mode (prevents inadvertent connection of 120V when configured for 240V operation). Proven - These are the only leakage current testers designed and supported by Product Safety experts. That is part of the reason why they have become the standard in the industry. Full technical support by experienced safety engineers.
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CLIOQC Model V -
Audiomatica
The QCBOX Model 5 is a non-conventional unit designed to fulfil actual and future needs of an electro-acoustical analyzer like the CLIO system. It is USB linked to a PC and can be configured, with dedicated software controls, to assist frequency response and impedance measurements or to perform DC measurements. Using it for frequency response measurements acts as 50W power amplifier to drive the speaker or network under test while routing one-of-four inputs to the analyzer as well the current sensing output. The four inputs are able to provide a phantom power supply both for Audiomatica or general purpose microphones (0-24 V range, software controlled). Impedance measurements can be done either switching the D.U.T.’s load across the analyzer’s input or using a dedicated output, ISENSE, thus allowing impedance measurements in constant voltage mode as well voice coil current distortion analysis. An internal ADC measures the DC current into the voice coil. Thanks to an internal software controlled voltage generator the speaker can be driven with a superimposed DC voltage (±20V), allowing for measurements of large signal parameters. Two ADC converters with a ±2.5 V and ±5 V are available at inputs 3 and 4 to measure the displacement with a laser sensor or any other DC signal. A dedicated digital input handles an external foot pedal switch (or TTL signal) to be connected and triggers QC operations. A 6 bit output – 5 bit input TTL digital port is available to interface the QCBOX and driving software with external hardware (like turntables for example).The QCBOX Model 5 finds use both in laboratory for R&D applications and in production lines setups.
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DEM60C -
IBEKO Power AB
After a DC current test, such as winding resistance measurement, the magnetic core of a power or instrument transformer may be magnetized (remnant magnetism). It can cause various problems such as wrong diagnostics, inaccurate measurements on a transformer, inrush current at the start-up of a power transformer, or incorrect operation of protective relays due to magnetized CT cores. The best way to eliminate this source of potential problems is to use demagnetizer on the power or instrument transformer.The DEM60C is a fully automatic test instrument which performs three-phase transformer demagnetization. Transformer magnetic core demagnetization requires the application of AC current with magnitude decreasing to zero. DEM60C provides this AC current by internally changing the polarity of a controlled DC current. During the demagnetization process, the instrument supplies the current at decreasing magnitude for each step, following a proprietary algorithm. It can demagnetize single-phase and three-phase power transformers.The instrument can be connected to all three phases of a power transformer to be demagnetized, on either the primary or the secondary side. If a user selects specific vector diagrams for different types of transformers, DEM60C will run a specific demagnetization procedure for each transformer type (i.e., single phase, delta, wye/star, zig-zag.) without switching the test leads.DEM60C enables safe and efficient power transformer demagnetization. The instrument automatically regulates the injection of current and discharging energy from the inductance. During and after the operation, an intrinsically safe discharge circuit with an indicator rapidly dissipates the stored magnetic energy. The discharging circuit is independent of the power supply, which improves its reliability in case of loss of power.Test currents of up to 60 A DC enable efficient demagnetization of even the largest power transformers. Using a DV Win software, it is possible to control DEM60C externally.
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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.
