Showing results: 571 - 585 of 1022 items found.
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Fuzhou Zhongtuo Optoelectronic Co.,Ltd
12V power supplies (or 12VDC power supplies) are one of the most common power supplies in use today. In general, a 12VDC output is obtained from a 120VAC or 240VAC input using a combination of transformers, diodes and transistors.
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75DL1 -
North Atlantic Industries
The 75DL1 is a cPCI LVDT/RVDT Simulation Board that provides eight 2-wire or four 4-wire transformer isolated programmable outputs. It provides wrap-around self-test, PXI compatibility, optional Excitation Supply, and is available for Military or Commercial applications.
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Voltage and Current -
TESCO
Testing and calibrating instrument transformers often requires standard burdens of reliable accuracy and stability, and burdens that are immune to stray fields and harmonics. The burden sets described below have been carefully designed to meet these requirements.
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Amprobe Test Tools
Cut unscheduled downtime and reduce shock hazards by testing wires, cables, transformers or entire electrical systems.
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SFK061 -
Shanghai Launch Electric Co., Ltd.
It is for testing the tgδ and Cx of materials and equipment such as various types of insulating material, insulating bushing, power cable and capacitor, instrument transformer and transformer. The tester is equipped with AC HV and precision standard capacitor and is easy to operate, of fully automatic testing, stable and reliable data and printable. The tester is also equipped with HV safety protector.
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TWR-H Series -
IBEKO Power AB
Handheld TWR-H device is DV Power single-phase instrument designed for measuring transformer winding resistance and turns ratio.The instrument has two output DC sources for measuring transformer winding resistance. The first DC source can output up to 2 A DC and is used for injecting current to the transformer’s high voltage winding. The second DC source can output up to 10 A DC and is used for testing the transformer’s low voltage winding. This is especially useful when measuring winding resistance of distribution transformers. These transformers have large turns ratio and therefore a big difference between resistances of high voltage and low voltage windings. Upon the winding resistance test, it is also possible to demagnetize the transformer core. The demagnetization process is completely automatic and safe.Together with the turns ratio, the instrument also measures excitation current and phase shift. This enables detecting transformer core or winding turns failures which cannot be spotted by measuring turns ratio only. The instrument can output test voltage up to 40 V AC for this test, but it can also output a very low test voltage of 1 V AC which is necessary for turns ratio verification of the majority of current transformers.TWR-H is powered by an internal Li-Ion battery. Up to 100 tests can be performed with a fully charged battery.
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AD-7010 -
ADEX Urzadzenia Pomiarowe
AD-7010 instrument is designed to measure, with high accuracy, the resistance of conductive elements power equipment: motor windings, transformer windings, conductor rails, inspecting the electrical conductivity of bolted joints, crimped, welded, the contacts of switches and relays.
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TAP4 -
Zensol Automation Inc.
The TAP-4 is the first instrument to use vibro-acoustic measurement to perform tests on On-Load Tap Changers (OLTC). The TAP-4 is a universal device, it adapts itself to any type of transformers: MR Reinhausen, ABB, Ferranti, Federal Pioneer and others.
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T-REX -
Raytech AG
The Raytech three phase voltage system option T-Rex is an optional system accessory for 3-Phase transformer ratio meter test sets designed by Raytech (i.e. TR-MARK III). T-Rex was designed to give Engineers and Test Technicians the ability to test the phase relationships and actual voltage ratios of transformer windings while applying three phase voltage.
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LET-4000-R -
EUROSMC, S.A.
Regulation and Measurement Module performs the regulation of the DC current and is made with a variable auto transformer (Variac) regulating a three phase DC current, with a power of 8KVA and a three phase transformer of 8KVA with 2V nominal power in the secondary windings. A built-in ammeter and a timer give the information of the current injected and the operation time of the relay under test.
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Weshine Electric Manufacturing Co., Ltd
Transformer iron core grounding current tester is a high-precision clamp meter specially designed for measuring AC leakage current, current and voltage. Large diameter (80×80mm) can clamp φ80mm cable, or 96mm×4mm flat steel ground wire, suitable for cables Leakage detection and transformer grounding flat steel leakage measurement.
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ESU-2050P -
BC Group International Inc.
Calibration quality analyzer; uses external precision non-inductive test loads and wide band current transformer. The Pulsed Model is compatible with all continuous output generators (same as standard model), plus generators with pulsed output waveforms.
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ETAP Enterprise
ETAP's system grounding & earthing foundation automatically detects the system earthing configuration based on source and transformer grounding or earthing type selection. The resulting earthing types are displayed both on the one line diagram and for the various connected cables.
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JYR20S/10S -
Kingrun Instrument Co., Ltd.
DC winding resistance testing is regarded as another essential routine screening tool. It indicates problems such as loose, defective or incorrect connections, which cause enough transformer failures each year to be regarded as a failure category of its own.