Transformer Comparators
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Product
High Frequency Transformers
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Osborne High Frequency Current Transformers operate at frequencies higher than 50/60 Hertz. Their purpose is to reduce high frequency system currents 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 high frequency current transformers are to be used for power measuring applications.
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Product
Insulating Transformer Oil Test Set
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NMC make Insulating BDV Oil Test Set are used to check the di-electric strength of the transformer oil.
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Product
Power Transformer Testing
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HAOMAI Electric Test Equipment Co., Ltd.
Testing products for power transformers.
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Product
Multi-Channel Phase Comparator
VCH-315M
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Multi-channel phase comparator VCH-315M, together with a computer and special software, is designed for simultaneous measurement of frequency instability characteristics (RMS, RMS) of a group of sinusoidal signals of standard frequencies 5; ten; 100 MHz.
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Product
Single-Phase Transformer Winding Resistance Meters
RMO-TW Series
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RMO-TW series is perfect for winding resistance measurements of inductive objects. It is ideal for testing transformer windings (power transformers, distribution, autotransformers) and for on-load tap changer verification. In addition, any RMO-TW transformer ohmmeter & tap changer analyzer can also perform transformer demagnetization.The series contains 4 models, with maximal test currents from 10 A (RMO10TW) to 50 A (RMO50TW). They are fitted in a portable and lightweight metal housing.All transformer ohmmeters from RMO-TW series generate a true DC ripple-free current with automatically regulated measurement and discharging circuit. The injection of current and discharge of energy from the test object are automatically regulated.Three independent channels enable testing of three windings in series. Consequently, this enables measurements of winding resistance in every tap position of an on-load tap changer without discharging between the tests.DV-Win software enables control and observation of the test process, as well as saving and analyzing the results on a PC. It provides a test report, arranged in a selectable form as an Excel spreadsheet, PDF, Word, or ASCII format. Additionally, DV-Win measures and calculates the OLTC transition time, the ripple and the winding resistance for each tap changing operation. The software can also perform the calculations necessary for the “Heat Run” test. Finally, a user can export all results in the form of a report.
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Product
Step Up Transformer
MagD
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SCOPE proudly introduces Step-Up Transformer - MagD, specially designed to cater the needs of testing of instrument Transformers. Before new systems are put into service or after any occurrence of fault, the instrument transformers need to be tested for their outputs. It is to be ensured that these instrument transformers are giving proper outputs to the protective relays. MagD is used to plot excitation curves for instrument transformers. Inbuilt voltmeter and ammeter, eliminates the need of external meters for plotting of curves. It can also be used for de-magnetization of transformer cores and also turns-ratio tests can be conducted using MagD.
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Product
AC Test Transformer
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Yangzhou Power Electric Co., Ltd
The AC test transformer are especially designed for testing high voltage products and components, such as cables, power transformers, gas-insulated switchgears, bushings and arresters. It is also suitable to test insulation materials. They are used to generate testing high voltage and function as part of the complete system. These systems are particularly suited for tests requiring stable voltage even if the load changes under voltage (corona, wet & pollution tests) or when the load is inductive (inductive voltage transformers).
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Product
Fourier Transform Optical Spectrum Analyzer, 600 - 1700 nm
OSA202C
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Thorlabs' Optical Spectrum Analyzers (OSAs) perform highly accurate spectral measurements. Compatible with fiber-coupled and free-space light sources, these compact benchtop instruments suit a wide variety of applications, such as analyzing the spectrum of a telecom signal, resolving the Fabry-Perot modes of a gain chip, and identifying gas absorption lines. Many commonly available OSAs use grating-based monochromators, which have slow acquisition times due to the need to mechanically scan the grating and average out noise at each wavelength. Thorlabs' OSAs acquire the spectrum via a Fourier transform using a scanning Michelson interferometer in a push/pull configuration. This approach dramatically improves the acquisition time, enables a high-precision wavelength meter mode with 7 significant figures and ±1 part-per-million accuracy, and allows the included software to provide robust statistical analysis of the acquired spectra, as explained in the Design tab.
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Product
FPGA Fast Fourier Transformation (FFT)
eXpert / Fast Fourier Transformation
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Fourier Transform Analysis is Advanced On-board FPGA Technology a powerful signal-processing technique used in a wide variety of applications. GaGe’s eXpert FFT firmware allows CompuScopehardware to perform Fourier Analysis within its on-board processing FPGA.
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Instrument Transformer Test Systems
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Our systems for testing voltage (VT) and current (CT) instrument transformers are conceived among other things for testing accuracy and insulation.
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Product
Transformer Insulation Testing
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Weshine Electric Manufacturing Co., Ltd
Your product description goes here.
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Distribution Transformer Tester
NDB-DOC™
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The NDB-DOC™ is a test instrument designed for distribution networks transformers from 10kVA to 2500kVA. It can determine the presence of short circuits or an open circuit in the distribution transformer primary winding & also short circuits on the secondary winding. The NDB-DOC™ is designed to be operated from an arial device or from the ground at the end of a hot stick without disconnecting the transformer’s secondary windings.
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Product
Zero Phase Current Transformer
MZL-65
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MULTI MEASURING INSTRUMENTS Co., Ltd.
Split-core type for measuring zero phase current
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Product
Linear Variable Differential Transformers (LVDTs)
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Whilst there are several ways to measure displacement, the Linear Variable Differential Transformer (LVDT) remains a popular transducer in most industrial applications. LVDTs initially were used as a means of taking dimensional readings in laboratories. They gained popularity in a wide variety of industrial monitoring and control applications, and whilst an LVDT is used to measure displacement the technology can be employed within other transducer types.
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Product
Instrument Transformers Tester
TE30
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Calmet Smart Calibration Devices
Electricity meters tester class 0.05 and 0.1. Three phase tester of current transformers and analyser of power network quality. It makes possible electricity meters testing on the site or in the laboratory.
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Product
32 Channel Analog Comparator Module
DP-VXI-5106
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DP-VXI-5106, is a 32 Channel Analog Comparator Module with 32 channels of differential analog window comparators. Each channel is provided with a window comparator as well as a Level Comparator , software selectable on an independent channel basis. All the 32 channels have been grouped into four groups of 8 channels each. This allows the user to configure the comparator module based on the application to initiate alarm action to exactly meet application requirements. Each Comparator channel can be programmed to generate a VXI bus interrupt or can be masked through software. An Interrupt is generated on an individual channel basis or on a group basis. Front panel outputs of buffered TTL and a 2-CO relay contact is available for every group (4 outputs total each). Also, a common buffered TTL interrupt output and a common 2-CO relay contact is also available at the facia providing extensive flexibility in application engineering.This module is an ideal device for GO / NO-GO testing in Test Stand Automation where important signals must be continuously monitored for system shut down purposes and safety inter-lock implementation. The hardware implementation in the Comparator module provides high-speed throughput and reliable inter-lock implementation. The interrupt out signal can be further wired as trigger signals for pre and post trigger analysis of signal data for post acquisition detailing.Each channel provides a Window Comparator implementation and a Level Comparator implementation. The configuration is programmable through software and the alarm can be generated if the signal is within the window or outside the window. Similarly, a high and low limit can be set and a trigger is generated if the signal exceeds the high limit or drops below the low limit.
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Product
Multi Mount Transformer
UET101
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UEi Test & Measurement Instruments
Multi Mount Control and Ringer transformer.
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Product
Split type AC Current Transformer
CTS-200
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MULTI MEASURING INSTRUMENTS Co., Ltd.
*1A output for metering application.*Short circuit switch for secondary output is provided for safe operation.*High accurate transformer for the application of first class meter.*Easy installation by metal fitting.
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Product
Current Transformers
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Excellent measurement technology requires high-quality current transformers. The product portfolio comprises a wide range of current transformers for load currents (operating currents) and residual currents (RCM). Different designs cover a variety of installation situations and metrological requirements, and enable retrofitting. AC/DC sensitive measuring current transformers use a special measurement method to detect both AC and DC currents of different frequencies.
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Product
ACP Portable Electrical Current Transformer Test,CT/PT Analyzer
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Chongqing Assen Power Equipment Co., Ltd
ACP portable Current transformer analyzer is mainly used for field or lab testing, it can finish the measurements (M) and protection (P) class CT, PT and TYP class CT. Adopt 7 inch touch TFT LCD, self-equipped mini type printer supporting field printing; supporting to use USB flash disk to dump data. The CT PT Analyzer is the most complete and easy-to-use testing system for protection and metering CTs according to IEEE and IEC standards.
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High Speed Comparators (<100ns Propagation Delay)
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Analog Devices high speed comparators feature <100 ns propagation delay and are a versatile and easy to use solution for a range of applications. Owing to our proprietary CB and XFCB fabrication processes, our comparators such as the AD790 possess a fast response time with outstanding input voltage resolution.
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Product
High Frequency Current Transformer Clamps
HFCT-20HD & HFCT-60HD™
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The HFCT-20HD™ and HFCT-60HD™ are high frequency current transformer sensors designed for partial discharge detection on electric apparatus’ ground returns. Made from superior quality materials, it is designed for any environment.
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Product
Grounding Transformers [ZN (Zigzag), ZNyn, YNd(open), Ii0]
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Grounding Transformers are designed for providing an artificial neutral point for ungrounded three phase power systems. During the line-to-ground faults, grounding transformers provide an easy path to ground faults to limit the fault currents and transient overvoltages.
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Product
Current And Voltage Transformer Test Set
iCT1
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iCT1 - CT/VT Test Set is the NEW and most advanced portable equipment capable to test current, voltage and combined transformers.With the low voltage method, known as "DC method", iCT1 is able to test Current Transformers with a very high saturation voltage, up to 30 kV, in a complete safety mode. Quick and easy to use tool, iCT1 allows to perform tests in one shot without changing the connection to the CT, thanks to the integrated 5-TAP Switchbox.
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Product
Isolation Transformers 230V
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PeakTech Prüf- und Messtechnik GmbH
Due to the high safety requirements in service workshops, schools and industry, an isolating transformer is an absolute prerequisite for carrying out professional repair work. Galvanic isolation between primary and secondary voltage during measurements and repairs on open devices guarantees a high safety standard for the user. Of course, galvanic isolation from the mains voltage also offers other advantages in electronics development, audio technology and many other areas.
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Product
Transformer Turns Ratio Testers
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Transformer turns ratio testers from TRT series are DV Power instruments mainly designed for the measurement of power transformer turns ratio. Also, they measure transformer excitation current and phase shift. Special tests, such as automatic vector group detection and magnetic balance, can be performed on three-phase transformers and three-phase autotransformers.All models, except TRT03 series, have a built-in true three-phase power source, which is necessary for testing turns ratio of transformers with special configurations, such as phase-shifting, rectifier, arc-furnace, traction transformers, etc.DV Power turns ratio testers can output various test voltages for different applications. From the extremely low test voltage of 1 V AC that enables turns ratio verification of the majority of current transformers, up to the highest test voltage of 500 V AC that provides the most accurate turns ratio testing of power transformers used in power generation and transmission. By using the external booster, test voltage increases up to 5 kV AC in order to successfully test capacitive voltage transformers.All DV Power turns ratio testers have a built-in tap changer control unit. Because of that, it is possible to control the on-load tap changer (OLTC) directly from the device. In order to make the most out of this feature, the instrument and included DV-Win software can be programmed to do everything automatically – running turns ratio tests, changing OLTC tap positions, and saving results. This option significantly facilitates and shortens the turns ratio testing time.TRT turns ratio testers use the same set of cables as three-phase winding ohmmeter & tap changer analyzers from the TWA series. Consequently, it enables one-time cable setup for performing eight tests:turns ratioexcitation currentphase anglemagnetic balancevector group detectionwinding resistanceon-load tap changer DVtestand demagnetization.
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Product
Split type AC Current Transformer
CTF-400T
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MULTI MEASURING INSTRUMENTS Co., Ltd.
*1A output for metering application.*Wire stopper is equipped for the slipping protection.*The special connector is not necessary as the output terminals are provided.*Open circuit protection and nonflammable plastic material.
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Product
High Frequency Current Transformers
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Osborne High Frequency Current Transformers operate at frequencies higher than 50/60 Hertz. Their purpose is to reduce high frequency system currents 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 high frequency current transformers are to be used for power measuring applications.
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Product
Split type AC Current Transformer
CTS-400
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MULTI MEASURING INSTRUMENTS Co., Ltd.
*5A output for metering application.*Short circuit switch for secondary output is provided for safe operation.*High accurate transformer for the application of first class meter.*Easy to install by metal fitting.
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Product
High Quality Transformer Oil Dielectric Strength Tester
AS-023A
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Chongqing Assen Power Equipment Co., Ltd
AS-023A Series High Quality Intelligent Transformer Oil Dielectric Strength Tester is specially designed for testing dielectric strength (Breakdown Voltage) of transformer oil. The breakdown voltage (dielectric strength) is one of the most important parameters of transformer oil, it is a rule of the voltage withstand. The value of breakdown voltage (dielectric strength) indicates whether the oil contains water, impurity and electric particles, and you’ll know the oil value via the breakdown voltage (dielectric strength).
