Transformer Testers
See Also: Transformer, Transformer Test, Transformer Turns Ratio Testers
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High Frequency Current Transformers
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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Discharge Tester
It is a new impulse winding tester that incorporates high precision, a wide range of functions, various expandability, improved operability, and a full range of external communication interfaces.
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Current Transformer
ST-100CT
Standard Electric Works Co., Ltd
● 1000/5A - 3000/5A● 10-15V A● Class 1● Insulation 600V
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LAN Tester / Cable Tester and Kit
EasyCheck 900
Compact, Powerful and Easy to use. This high performance LAN Tester / Cable Tester is the perfect tool to enable you to install, test and verify a network faster than before.
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Receptacle Tester
RT500
Designed to detect the most common wiring problems in standard 120V receptacles.Test for correct wiring, open ground, reverse polarity, open hot, open neutral, hot and ground reversed.Conditions NOT indicated: Quality of ground, multiple hot wires, combinations of defects, reversal of grounded and grounding conductors.Large light indicators for greater visibility.Reinforced prongs for increased durability.Push-pull design with slip-resistance ribbing.Made in USA of U.S. and imported parts.
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Current Transformer
ST-3RCT
Standard Electric Works Co., Ltd
● Primary Current Rating (Amp) : 20~300
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Armature Tester
FISHER TESTERS AUTOMATIC TEST EQUIPMENT
• Touch Screen Interface• Windows® 10 Pro• Lowest Board Count in the Industry• High Reliability with Proven Design• USB Interface – No I/O boards in Computer• Remote Control Software for Factory Diagnostics/Updates• Full Network Compatibility• Integral Statistical Reporting• Test Data May be Stored in Multiple Formats• Two Year Warranty on Electronics
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Multifunction Tester
M70
M70 is a mobile device dedicated to measuring Insulation resistance with test voltage up to 1000VDC and Continuity of protective and equipotential conductors with current of 200mA in private and industrial electric installations.
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Hardness Testers
Guangzhou Amittari Instruments Co.Ltd
Memory Foam Hardness Tester AS-120MF, special for memory foam hardness measurement.(memory foam is also known as slow rebound sponge, space zero pressure, space foam, TEMPUR material, low rebound sponge material, viscoelastic, used in high velocity ofaerospace, aviation, equipment, high-end consumer goods.)
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Doide Testers
Specialized test for Axial, SMD and 2-pin package type.Electrical Testing: Forward:VF Reverse:VZ、DVZ、IR、ACIR、DIRFour-wire measurement and contact resistance in case of deviation.Manual test or conjunction with automatic machine.
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Current Transformers
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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ANSI Potential Transformer Burdens
The ANSI Potential Transformer Burden Model PB-96-ANSI is designed for loading the Voltage transformers during accuracy tests as per ANSI standard C57.13. The PB-96-ANSI is a dual input ANSI burden providing the inputs of both 120V & 69.3V. It can be used along with the ELTEL Automatic Instrument transformer Test Set. AITTS-98 to test VTs as per ANSI standards.
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Tachometer Tester
TG23P
Aircraft Development Industries cc
The model TG23P is an entirely solid state digital 3 Phase, 2 pole, Tachometer Generator Simulator. There are no motors, strobe lights or moving parts in the unit which makes it ideal for testing electro-mechanical type Tachometers, Percent RPM Indicators, Dual and Triple Tachometer indicators
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Range Extension Transformer
• Range extension transformer to extend the capacitance range upto 2.6 micro Farad (ACTS-12K) and 2.4 micro Farad (CTS-12KSA)
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Battery Tester
Shenzhen Graigar Technology Co.,Ltd.
A battery tester is an electronic device intended for testing the state of an electric battery, going from a simple device for testing the charge actually present in the cells and/or its voltage output, to a more comprehensive testing of the battery's condition.
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Hipot Testers
V7X Series
With color touch LCD & high speed DSP technology, the compact & rugged V7X sets the standard for price/performance ratio. Made in the USA to meet tough UL, CSA, TUV and IEC Hipot requirements – the V7X provides unbeatable speed, accuracy, user safety and reliability.
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VDSL Tester
X5008
X-5008 VDSL tester specially designed for slid line test (xDSL include: ADSL, ADSL2, ADSL2+, READSL, VDSL2 etc) and maintenance It provides xDSL test, PPPoE dial test, DMM test, Modem emulation, line voltage indication and so on. X-5008 VDSL Tester also introduces the Optical Power Meter and Visual Fault Locator function into the unit, as well as the TDR function. It is one mufti-function tester with smart size, true color LCD and powerful management software as well as the 6600mAh rechargeable battery etc.
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Voltage Testers
Shenzhen Everbest Machinery Industry Co.,Ltd.
Non-contact detection of 50 to 1000V ACRugged and double molded caseSuitable for outlets or against wire insulation testingFlashing red LED light indicatorBuilt-in bright flashlight with on/off buttonConvenient size with pocket clipAuto power offSystem self testUse on 50/60Hz circuitsComplete with two AA batteriesCATIII 1000VDimensions: 158 x 21mmWeight: 48g
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Battery Tester
700
The #700 has an internal loading capacity of 100 amps. It is a great tool for finding batteries that can’t stand up to the load of today’s automotive accessories. It will also test relative starter current draw and charging voltage.
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Memory Tester
SP3000
CST is proud to offer a portable stand alone and affordable memory tester, combining DIMM and SODIMM testing capability all on the same universal base unit with optional easy plug-on test adapters.
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Voltage/Continuity Testers
VOT-53
Standard Electric Works Co., Ltd
● 2000-count digital display (LCD type). ● Test leads positioned at 19mm apart.● Interchangeable probe tip for 2mm and 4mm.● Polarity test ● Audible continuity test.● Auto sensing function for: voltage (AC/DC), Ω, diode.● Measurement function: ACV/DCV: 1000V Resistance: 2000Ω Frequency: 30Hz~1kHz ● Phase rotation test : ● Waterproof design, protection class: IP65.● Phase / Neutral identification.● Rubberized double-molded housing.● Flashlight function.● Safety standard : EN 61010-1 CAT III 1000V EN 61010-1 CAT IV 600V EN 61243-3 EN 61326-1
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Variac Auto Transformers
We offer a wide range of Variac Auto Transformers, which are available on leading price in market.
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Auxiliary Current Transformers
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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Partial Discharge Testing Of Transformer & Localization System
AE-150™
The is designed to detect and localize Partial Discharge activity by correlating acoustic and electric sensors' data. The AE-150™ has many acquisition modes, each used for detecting and locating Partial Discharge activity in a transformer. The AE-150™ unit is mounted on the transformer tank using its powerful magnets that also hold four acoustic sensors.
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Cupping Tester
PCE-CPT 20
PCE-CPT 20 is a cupping tester, or coating flexibility tester, used for testing the adhesion, elongation and deformability of paints, lacquers, varnishes, powder coatings and other surface coatings on metal sheets. Used in manufacturing production, paint shop and quality control applications, the PCE-CPT 20 cupping tester aids in determining coating strength, durability and elasticity. A mandatory test in Qualicoat and QIB accredited quality control laboratories, a cupping test, also referred to as an Erichsen test or dent test, uses a spherical punch to deform a sample. This deformation results in a cup-like bulge. When using the PCE-CPT 20 to perform a cupping test in accordance with the ISO 1520 standard, the sample should be placed coating side up so that the 20 mm spherical punch presses against the uncoated underside of the metal sheet. The cupping test is terminated when small cracks and/or detachments are observed on the bulged part of the sample. The PCE-CPT 20 cupping tester's easy-to-read display shows the bulge deformation distances that can be used to determine the coating's flexibility rating.
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Series Precision Fixed-Ratio Current Transformers
PMT25100
Power Measurement Technologies Inc.
Precision two-stage toroidal current transformers find application as the reference in determining the accuracy of instrumentation current transformers.
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Cable Tester
LW3310
Dongguan Longwei Electronic Technology Co., Ltd.
LW3310 wire tester is designed for all kinds of electronic wire, electric wire and connector design, due to the various types of wire and connectors used in every field, this applies only to the commonly used wire detection instrument. Widely used in computer, communication, medical, electrical appliances, motor, automobile and other wiring test.
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Mechanical Tester
TriboLab CMP
Leveraging over 20 years of CMP characterization expertise with its predecessor product (Bruker CP-4), TriboLab CMP brings a complete set of capabilities to the industry-leading TriboLab platform. The resulting accuracy and measurement repeatability enables the highly effective qualification, inspection, and ongoing functionality testing required throughout the CMP process.
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Circuit Testers
The circuit breaker finder pinpoints the specific breaker powering the circuit being worked on. Eliminates guessing and unwanted power outages caused by tripping the wrong breaker.
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Continuity Tester
TE6-0711
Hangzhou Tonny Electric & Tools Co., Ltd.
*Designed to test circuits while power is off*2 AAA batteries included*Durable ABS housing*36" Test lead with insulated alligator clip*Sharp tip for probing circuits





























