Showing results: 1 - 15 of 18 items found.
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783731-01 -
NI
200 kS/s, ±20 mA, 8-Channel C Series Current Input Module - The NI‑9203 is intended for high-performance control and monitoring applications. It features programmable input ranges and variable connectivity options. To protect against signal transients, the NI‑9203 … includes a channel‑to‑earth ground double‑isolation barrier (250 Vrms isolation) for safety and noise immunity.
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ART-3D -
ndb Technologies Inc.
The ART-3D is high precision instrument designed to measure ratios, magnetization currents, phase-shifting in power transformers, distribution transformers, potential and current transformers, in conformity to IEEE C57.12.90 and CEI/IEC 60076.
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PMT20010 -
Power Measurement Technologies Inc.
The PMT20010 Comparator is an automatically balancing bridge that measures the accuracy of instrumentation potential and current transformers.
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TR-1C -
Criterion Instruments Limited
Model TR-1C Transformer Ratiometer is a precision test set with an easy-to-read in-line digital readout from 0.00001 to 1.00000, suitable for testing all types of single and three-phase power distribution, potential and current transformers.
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Osborne Transformer Corp.
Osborne Potential Transformers (PT’s) are used to reduce higher system voltages to lower values that are appropriate for instrumentation and/or protection circuits. They have been designed to meet specified current ratios, and burden impedance at a specified transformation error. One area of unique Osborne expertise is in designing for phase shift when potential transformers are to be used for power measuring applications.
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V180 -
Highland Technology, Inc.
The V180 is a single-width VME module that allows accurate and comprehensive measurement of AC power circuits. The V180 acquires powerline current and voltage inputs using approved current transformers and model C750 remote potential transducers.
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505 -
Radian Research, Inc.
The UTEC 505 Transformer Analyzer is designed for testing current transformers (CT) and potential transformers (PT) without interruption of the customer’s service. This instrument measures CT admittance, CT ratio, CT primary-to-secondary phase angle and the voltage, current and phase angle of the service. With the ‘Burden CT/PT Option’, it determines the CT secondary burden capability, the regulation of the PT and its secondary burden capability and provides for CT core demagnetization.
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Eltel Industries
Fully pre-wired comprehensive turn test system. *Suitable for CTs up to 6000A & VTs up to 132kV. * Precision to (0.005 class) internal multi-ratio standard CT. * Internal 4KA current source. * State-of-the-art Instrument Transformer Test Set AITTS-98 with computer & printer interfaces. * Electronic potential divider facilitates testing any VT ratio upto 132kV. * Current & potential burdens.
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Guildline Instruments Ltd
Capacitance Bridge is an instrument employing the AC Current Comparator principle. The 9910A is a versatile instrument for a wide range of applications including capacitance measurements, cable testing, corona loss measurements, insulator and dielectric testing, inductance measurements, potential transformer error measurements, shunt reactor loss measurements and power transformer testing.
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1044A -
The Eastern Specialty Company
Due to overwhelming demand, TESCO is pleased to re-introduce the 1044A 20 Amp Current Transformer Burden Test Set. This light weight, hand held unit is a simple and inexpensive means whereby a current transformer installation may be quickly checked for many sources of trouble. The 1044A provides utilities a less expensive and more traditional option for checking larger services for potential meter circuit related issues.
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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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ABB Ltd.
Test switches are designed and manufactured to allow quick and easy multi-circuit testing of switchboard relays, meters and instruments by any conventional system.These test switches and related test plugs have the features necessary for applications involving the measurement of individual currents and voltages associated with substation instrumentation and protection devices. They have been especially designed for the measurement of potential elements, current elements, and make-before-break short-circuit elements related to Current Transformer (CT) circuits.
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HV-2 -
International Electro-Magnetics, Inc.
*Tests Power Transformers for Continuity, Ratio and Phase. Applied and Induced Potential and No-load Losses.*14 Conductor Switching Matrix will test 7 individual windings, 13 taps of one common winding or some combination thereof. (10 Amp current limit)*The System Control is Windows/Visual Basic based. Menu screens allow full selection of test parameters and sequence. Low voltage tests can be performed first, allowing defective parts to be rejected without proceeding to time consuming induced Potential dwell routines. Test data labeling and data acquisition software can be easily added to the system.
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Extech PQ3450-30 -
Extech Instruments Corporation
The PQ3450 is a 3-phase power analyzer/data logger capable of logging up to 30,000 sets of measurements in Excel format on a removable SD memory card. Large dot-matrix, sun-readable, numerical, backlit LCD with easy-to-use onscreen menu. Full system analysis with up to 35 parameters. Adjustable Current Transformer CT (1 to 600) and Potential Transformer PT (1 to 1000) ratio for high power distribution systems. Log up to 30,000 reading on a removable SD memory card in Microsoft Excel format. Wide sampling rate range (2 seconds to 2 hours). Built-in Clock and Calendar. Complete with 4 voltage leads with alligator clips, three 3000A flexible current clamps, 8 AA batteries, SD card, 100-240 Volt AC adaptor and case.
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Extech PQ3450-12 -
Extech Instruments Corporation
The PQ3450 is a 3-phase power analyzer/data logger capable of logging up to 30,000 sets of measurements in Excel format on a removable SD memory card. Large dot-matrix, sun-readable, numerical, backlit LCD with easy-to-use onscreen menu. Full system analysis with up to 35 parameters. Adjustable Current Transformer CT (1 to 600) and Potential Transformer PT (1 to 1000) ratio for high power distribution systems. Log up to 30,000 reading on a removable SD memory card in Excel® format. Wide sampling rate range (2 seconds to 2 hours). Built-in Clock and Calendar. Complete with 4 voltage leads with alligator clips, three 1200A current clamps, 8 AA batteries, SD card, 100-240V AC adaptor and case.
