Current Transformers
transfers accurately proportional levels of current to multiple circuits.
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Current Transformers
Sensors
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The Current Transformer (CT) is the sensor which measures the amount of current draw from the wire it is installed on.
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Current Transformers
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The Institute of Electrical and Electronic Engineers defines a current transformer (IEEE Std C57.13) as “a transformer intended to reproduce in its secondary circuit, in a definite and known proportion, the current of its primary circuit with the phase relations substantially preserved”. Its primary winding is connected in series with the conductor carrying the current to be measured or to be controlled and its secondary winding is connected to the measuring, protection or control devices. Osborne designs and manufactures current transformers which are used for instrumentation applications, others which are used for power system synchronizing applications and others which are used in protection circuit application. They have been designed to meet specified current ratios, burden impedance and transformation errors.
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Current Transformers
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Rishabh Instruments Pvt. Ltd.,
Rish Nano CT is a very reliable, efficient and robust current transformer for measurement of AC current. It provides 100 mA AC output. It can be used in Circuit breakers. Earth Leakage Protection.
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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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AC/DC Clamp-On Current Transformers
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AC/DC Clamp-On Current Transformers by AYA Instruments
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Current Transformers Test Set
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Supreme Instrument Laboratories
The basic unit is sensitive magnetic comparator and also it incorporates electronic null detector to facilitate the balance. The reference Current 5A. or IA. obtained from Standard Current Transformer and in comparison to that the vector length and phase displacement is measured. The ratio error in percentage and phase displacement in minutes are directly compared and indicated on dials.
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Clamp Meters / Clamp Current Transformers
Multi-meter clamps
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Professional electrical testing tools and accessories used to measure AC or DC current safely without disconnecting the live wire.
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Current Transformers
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National Meter Industries Inc.
Is an instrument transformer, used along with measuring or protective devices, in which the secondary current is proportional to the primary current (under normal conditions of operation) and differs from it by an angle that is approximately zero.
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Testing of Current Measuring Transformers
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All components from this category can be integrated into an existing current transformer test system. When selecting CT test components, both the type of converter to be tested and the required current are important.
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Auxiliary Current Transformers
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Osborne Auxiliary Current Transformers are often used to reduce system currents to lower values appropriate for instrumentation and/or protection circuits. The Aux CT’s are designed for specific current ratios and burden impedance with a known transformation error. Osborne’s units are built for high performance and longevity in the most demanding environments.
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Current Transformers
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A range of ring type current transformers suitable for primary currents from 1A-5000A with 1A or 5A secondaries. This standard range of measuring and protective current transformers is available as resin coated or tape wrapped.
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Split Core Current Transformers
LZCK-55
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Beijing GFUVE Electronics Co.,Ltd.
Outdoor waterproof current transformers are applicable for AC power system 35kV and measurement of current of power supply equipment below 10KV also can be used for microcomputer protection. This type of current transformer employs imported silicon steel which with high permeability as magnetic material, has the characteristics of Small magnetic circuit loss and can be split, its semicircular core and secondary windings employ high quality epoxy resin vacuum, casting in plastic-case(ABS or PC) which is flame retardance anti-moisture, stable performance, no maintenance.
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Split-Core Current Transformers
CTS Series
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Continental Control Systems LLC
The CTS series CTs are available with windows from 0.75 inch up to 2.0 inch. They have a removable section, so that they can be installed without interrupting the circuit. 0.333 Vac output at rated current Accuracy ±1% from 10% to 100% of rated current Phase angle <2° degrees at 50% of rated current (valid for 70 A or higher) 8 ft. twisted-pair wire, 600 Vac rated UL recognized for voltages up to 600 Vac, CE mark, RoHS
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L.V. Current Transformers
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ENTES LV Current Transformers are measuring transformers which transform the primary current by a specified ratio to its secondary side with a phase difference of 0 degrees. They provide isolation of the relays and measuring devices from the HV side of the network.
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Clamp Meters / Clamp Current Transformers
Clamp current meters
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Professional-grade electrical testing tools used for safe, contact-free measurements of alternating current (AC) and direct current (DC).
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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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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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Split Core Current Transformer
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Beijing GFUVE Electronics Co.,Ltd.
Have a "split" in the core that allows the CTs to open and be placed around the conductor without having to disconnect the conductor or disrupt the wiring.
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High Current DC Transformerd
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High Current DC Transformer provides very accurate DC current measurements up to 3000 A with output current that varies directly with the input current in three ranges. This direct current transformer is designed with an open window to pass a single cable, set of cables, or buss bar that carry the direct current to be measured.
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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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Transformer Turn Ratio Instrument
ART-3D
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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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Automatic Instrument Transformer Test Set
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*ARM 9 processor controlled measurements*Measures total burden connected to test sample*Internal data storage facility upto 1 lakh readings*Digital display of test results on 800 x 480 TFT color display.*Latest IEC 61869 / ANSI C57.13-2008 / IS-2705 standards incorporated*VGA Port to interface with bigger display / monitor*Both Voltage & Current Transformer testing with one test set*5 and 1 Amp CT testing using either 5 or 1 Amp standard CT*Identifies ANSI, IEC, IS-P, IS-PR, BS, BS-S, IEC-S, IS, IS-S, AS, AS-M, AS-ME standards for CT & VT*USB memory storage*Available in three versions: AITTS Plus , ACTTS Plus & AVTTS Plus
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CT-PT-CVT Measuring
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Testing object: S current transformer, normal current transformer, voltage transformer● Testing item: ratio error, phase error, impedance, admittance of the transformer, etc● Rated current:5A,1A ( Customized )● Rated voltage: 100V, 100/√3V, 100/3V, 110V, 110/√3V, 110/3V, 120V, 120/√3V, 120/3V, 220V (or other)● Measurement range: ratio error measurement range : 0.0001%-19.99% phase error measurement range : 0.01 ' -900 '● Error minimum resolution:ratio error:0.0001%; phase error:0.01 ' ● Communication function : provide RS232 serial communication port● Measurement accuracy: ±1%● Consumed power: less than 20VA● Dimension :460×380×160 mm● Weight: 12kg
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Wireless Energy Datalogger
ELITEpro XC™ Energy Logger
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The ELITEpro XC is a complete solution for pinpointing electric usage and recording building performance metrics. It is capable of measuring, storing, and analyzing electrical consumption data which is derived from the voltage and current inputs. The ELITEpro XC uses direct connections to each phase of the voltage and various interchangeable CT options such as split-core current transformers, or flexible RoCoils (for large loads or large cables and bussbars) to monitor current on each phase.
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Acoustic Imager
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Can be used for quick on-site testing of current transformers in metering installations. They are designed and manufactured to test transformers’ primary current, secondary current, and turns ratio and identifies phase type and polarity.
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Transformer Turns Ratio Tester
CX-BY
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Shenzhen Chuangxin Instruments Co., Ltd.
It is to test voltage ratio, vector, polarity, ratio error of current transformer and voltage transformer.
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AC / DC Current Probe, 2 MHz, 500 Arms
N2780B
Battery Probe
The N2780B current probe is an accurate and reliable solution for measuring AC and DC currents. Using a hybrid technology that includes a Hall effect sensor and an AC current transformer, the probe provides accurate measurement of DC or AC currents up to 500 Arms continuous.
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Portable Analog Instruments
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Instrument transformer is a general term for voltage transformers and current transformers that are used with electrical instruments. The main purpose of instrument transformers is to extend the measurement range for electrical quantities (voltage, current, power, power factor) on large-current and high-voltage circuits. They serve to convert currents and voltages to levels that are suitable for measurement, and to insulate the instrument, etc. from high-voltage circuitry.
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Ground-Fault Location Products for Ungrounded Systems
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When combined with Bender's ground-fault detectors and current transformers, EDS series modules provide fast, automatic ground-fault location in ungrounded systems. Fault location takes place while the system remains online without the need to open branch circuit breakers or disconnect equipment. Bender's fault location system works on both AC and DC systems, as well as systems with variable frequency drives. A standalone, portable fault location system is also available.





























