Transformer Turns Ratio
measures a transformer's number of primary winding turns to it's secondary turns.
See Also: Winding, Transformer Turns Ratio Testers
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Product
ANSI Relaying Current Transformer Burden
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The ANSI Current transformer burden is designed for loading the current transformer during accuracy Tests. The ANSI burden is designed as per ANSI burden C57.13.It can be used along with the Eltel Automatic Instrument Transformer Test Set to test CTs as per ANSI Standards.
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Product
Bobbin Winding Coil Turn Tester
SS108 Series
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This (SS108** series) winding coil turn testers are used for testing turn of various coils without core, like as: generator winding, transformer winding, relay, inductor, contactor, ignition coil, voice coil, etc.
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Product
Single Gas Transformer DGA
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Hydran composite gas Dissolved Gas Analysis (DGA) products provide essential online monitoring of transformer oil. The Hydran line is the perfect cost-effective application for small- and medium-sized transformers where customers need to know about developing fault conditions that could cause unscheduled outages.The Hydran products allow for the addition of expansion to the base unit, allowing for greater measurement accuracy
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Auto Transformers
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Osborne often recommends Auto Transformers in situations where reducing physical size of the transformer is advantageous. Auto transformers offer size advantages when compared to equivalent isolation transformers. Auto transformers provide lower levels of regulation than the equivalent isolation transformer. Osborne helps our clients accommodate for the loss of regulation while achieving the physical size (and cost) advantages of auto transformers.
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Product
PPS Clamp Transformer
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PPS2 provides power supply to the PD detectors installed on HV cable when low voltage AC power is not available. The PPS2 takes the required power directly from the High Voltage power line under monitoring by means of units clamped on the HV power cable(s).PPS2 is designed to withstand High Voltage line failure events such as temporary overload and short circuit conditions. An internal detection and self limiting circuitry guarantees that PPS2 and the connected equipment survives in case of such events.
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Product
Three-Phase Transformer Demagnetizer
DEM60C
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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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Product
Power Transformer Automatic Test Device
XD71
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Hangzhou Xihu Electronic Institute
The device is used for power transformer power outage routine test items to do automated testing.Which is characterized by dielectric loss, insulation resistance, DC resistance, tap-changer switching characteristics, short circuit impedance and variable ratio of six test items are concentrated in an instrument,so that the instrument function, test power and test lead height fusion.Field test, just start wiring once, at the end of unplugging wiring once,the middle process by the test personnel in the computer terminal to send command control,the test system automatically completes all or part of the above test items.
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Product
Current Transformer
ST-40CT
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Standard Electric Works Co., Ltd
● 200/5A - 400/5A● 3-5V A● Class 1● Insulation 600V
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Product
Transformers
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GE Vernova offers a wide range of transformer solutions for the utility, industrial, commercial, residential and energy markets. These solutions feature flexible, reliable and robust designs to support a wide range of applications. With units operating in some of the most demanding electrical environments around the world, We design and delivers transformer solutions that provide among the highest level of performance and reliability to meet rigorous operating requirements.
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Product
Test Equipment for Instrument Transformer
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is desirable for measuring ratio errors and phase angles of low current (voltage) transformers used in electric devices, such as watt hour meters, smart meters, digital current meters, and transducers, etc.
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Product
RF Transformers
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Pulse continues to lead the way with a broad range of components that enable twisted-pair copper high-speed services to homes and businesses. Pulse components are also used in cable modems and the consumer electronics that provide home networking services. Our high-performance transformers support home phone line and power line networks. These transformers are designed to exceed ANSI and ETSI standards, and have excellent THD performance and small footprints.
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Product
Portable Single Phase Transformer
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Supreme Instrument Laboratories
Portable single phase double wound transformers both step-up and step-down, natural air cooled construction, housed in well ventilated sheet steel cabinet duly powder coated. All the input and output terminals are brought out and terminated on highly insulated bakelite panels duly marked for easy connection.
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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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Clamp Meters / Clamp Current Transformers
Clamp meter
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A professional-grade, contact-free electrical testing device used to measure alternating current (AC) and direct current (DC), voltage, power, and other electrical parameters safely by clipping around a conductor.
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Product
Stable Isotope Ratio Mass Spectrometer
isoprime precisION (IRMS)
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Elementar Analysensysteme GmbH
Stable isotope analysis provides great insight into diverse applications and delivers a greater understanding of the micro and macro cycling mechanisms of the organic elements through the world around us. Though our collective knowledge continues to grow, so does our desire to explore further. The more we know, the more we question.
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Product
Split type AC Current Transformer
CTS-100
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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
Transformer Winding Resistance Meters
RMO TD Series
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The RMO-TD Series On-Load Tap & Winding Resistance Analyzer is designed for the measurement of winding resistance of inductive elements, and for tap changer analysis. The RMO-TD series is based on the latest technology, using the most advanced switching technology available today. The RMO-TD series is accurate (0.1%), powerful (up to 60 A) and lightweight. It generates true, ripple-free DC current with automatic metering control and a discharge circuit.
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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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Product
Shorted Turns Tester for Bobbin Wound Coils
Model STT-4
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International Electro-Magnetics, Inc.
The STT-4 Shorted Turns Tester offers a quick and easy means to detect shorted turns in bobbin coils. It is a non-stress and non-contact test.
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Product
Transformer Performance Tester
6691
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applying ±90V voltage on the winding of the transformer demagnetized and get the voltage value on the terminal and the current value in the winding to draw the hysteresis characteristic curve. This method can be used for linear quantitative analysis of residual magnetism in transformers, and fast demagnetization can be achieved by tracking hysteresis curves. The analyzer can measure magnetism residual rate before and after demagnetization.
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Product
Single-Phase Transformer Winding Resistance Meters
RMO-TT Series
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RMO-TT series is perfect for measuring winding resistance of inductive objects such as power and distribution transformers or autotransformers. Additionally, every transformer resistance meter from RMO-TT series can analyze:tap changers,generators,electrical motors,high-current busbar joints,cable splices,and welding joints.Transformer demagnetization can also be performed with all RMO-TT instruments.The series is consisted of 3 models, with maximal test current from 40 A (RMO40TT) to 100 A (RMO100TT). RMO100TT is the only portable transformer resistance meter in the market with 100 A DC output current.The three independent channels enable testing of three windings in series. Consequently, a user can measure winding resistance in every tap position of an on-load tap changer without discharging between the tests.In addition to winding resistance measurement, a user can perform a detailed on-load tap changer analysis by analyzing recorded graphs (10 kHz sampling rate) and by measuring vibrations on an external tap changer tank.All RMO-TT instruments have a built-in tap changer control unit. Because of this, it is possible to remotely control on-load tap changer (OLTC) directly from the device. Also, a user can program DV-Win software to do everything automatically – running winding resistance tests and changing OLTC tap positions.The DV-Win software also 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.All results can be exported in the report format.
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Product
Current Transformer Loading Type
LCT 2
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SHANGHAI POWOO INDUSTRY CO., LTD
- suitable for a wide range of current (1.5A~120A); - there are standard holes on the primary lead wire; therefore, can be fixed at the terminal of the electricity meters with standard bolts, which makes it both firm and convenient; - the primary lead wire is highly customer-tailored with more than 300 specifications; - encapsulated with epoxy resin to ensure strong insulation ability; - linear output current, high precision; - AMB anti-combustion plastic casing.
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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).
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Product
Current Transformer Coil Type
CCT2
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SHANGHAI POWOO INDUSTRY CO., LTD
- suitable for small input current; - compact and delicate appearance; - linear output current, high precision; - small volume, light weight, easy to be fixed; - encapsulated with epoxy resin to ensure strong insulation ability; - ABS anti-combustion plastic casing.
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Product
07P2T Push To Turn | THT Horizontal Or Vertical | 10 Positions
07P2T-Coded-Overview
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Coded switch with push to turn function, BD coding, IP68 sealing, push force up to 11 N and switching torque up to 7 Ncm
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Product
Zero Phase Current Transformer
MZL-30
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MULTI MEASURING INSTRUMENTS Co., Ltd.
Split-core type for measuring zero phase current
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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
Distribution Transformer Tester
ADOC-3
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The ADOC-3 is an equipment that has been designed to test distribution network transformers from 5 kVA to 3MVA.
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Product
Voltage Transformer
PT4
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SHANGHAI POWOO INDUSTRY CO., LTD
- completely enclosed, good mechanical behavior, suitable for various environments, strong voltage isolation ability, delicate appearance; - the lead wire has a pin format, which makes it easy to be fixed on a PCB; - the mechanical dimensions for this series of PTs are relatively small, hence can be used an electronic component; - good linearity, high precision, wide operating range; - ABS anti-combustion plastic casing; - encapsulated with epoxy resin to ensure strong insulation ability.
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Product
Hand Held Microwave Moisture MeterFor Water/Cement Ratios of Fresh Concrete
Cementometer
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The James Cementometer represents a break-through in modern moisture measurement technology. By utilizing the latest microwave and microprocessor science, the Cementometer can determine the moisture content of freshly mixed cement, concrete, and mortar. Simply insert the prongs of the probe into the material to be measured and instantaneously the water cement ratio is shown on the easy to read display.
