Voltage Transformer
a type of intrument transformer enabling secondary connected metering.
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Product
Voltage References
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Renesas' wide selection of voltage reference (Vref) circuits offer accurate and stable reference voltages unaffected by external influences such as variation in temperature, input voltage and time.
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Product
Voltage Detectors
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Non-contact voltage detectors can quickly detect live AC voltage. These handy devices are great for electricians to safety and quickly check the status of electrical wires.
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Product
Voltage Voltmeter
Voltstik
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The Voltstik is a distribution voltage voltmeter designed for use on lines and in substations. This meter is employed onto a line by using a hot stick and universal chuck adapter. It is capable of measuring voltage phase to phase, and phase to ground. This high impedance instrument is an excellent choice for solving multiple problems associated with operating a medium voltage system. Its key applications are defined under three groups, safety confirmation of the voltage present, troubleshooting voltage problems, and phasing.
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Product
Current Transformer
ST-30CT
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Standard Electric Works Co., Ltd
● 30/5A - 150/5A● 2-3V A● Class 1● Insulation 600V
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Multifunction Voltage Tester
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*Detects AC voltage by non-contact method: 70VAC to 250VAC*Finds broken wire location*Wrong connection check*Ground / Earthing disconnection check*Detects static radiation of TV / monitor*Checks operating condition of ionizer*Microwave leakage detection: ≥5mw/cm2
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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
10-Ch. 0… 5V 400mA Isolated
YAVAP955
Programmable Voltage Source
The YAV board AP955 contents 10 CAN Bus programmable bipolar Isolated precision and low noise 0 to 5VDC voltage sources up to 400mA output, with Tripaddle VPC connector.
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Product
Linear Voltage Regulators
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ST offers a wide range of voltage regulators intended for automotive applications.
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Product
Split type AC Current Transformer
CTF-200T
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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
Voltage Probes
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In addition to EMI measurement with LISNs (Line Impedance Stabilisation Networks, Artificial Mains Networks), Probes are used for Terminal or Line voltage measurement.
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Non-Contact Voltage Tester
NCVT-1
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Non-contact detection of voltage in cables, cords, circuit breakers, lighting fixtures, switches, outlets, and wires.High intensity, bright green LED indicates the tester is operational and aids in illuminating the workspace.When voltage is detected, a high intensity, bright red LED illuminates and a warning tone sounds.Discrete digitally controlled ON/OFF power button.Auto power-off feature conserves and extends battery life.Microprocessor controlled low-battery indicator and tester shutdown.CAT IV 1000 Volt safety rating provides expanded operation and protection.
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Product
6-600V 2-Pole Voltage Tester
1862B
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Peaceful Thriving Enterprise Co Ltd
The 2 pole Voltage Tester provides a clear indication of AC or DC voltage levels via bright LED's from 6-600V. It is constructed in accordance with the latest safety standards and is ergonomically designed which is durable enough for both industrial and domestic uses.
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Product
Voltage Testing
MicroDetect series
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Hachmann Innovative Elektronik
Voltage detection simple and reliable with the MicroDetect line you get a type series of handy, exact and simply useable voltage detectors.
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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
Transformer Winding Resistance Meters
TWA Standard Series
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The TWA standard series instruments are designed to measure the resistance of six coils and simultaneously analyze the three-phase tap changer on load of the primary and secondary transformer coils (provided by model TWA40). This is done in a single cable configuration, with test currents up to 40A. Each transformer configuration has a special measurement algorithm that is optimized for rapid stabilization of test results. The TWA instruments generate a true DC current without ripple. Both current injection and magnetic circuit energy discharge are automatically regulated.
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Product
Transformer Rectifier Assemblies
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Transformer rectifier assemblies are very useful in OEM applications when unregulated DC output is required. Input power can be single-phase or three phases. With single-phase input power, the output ripple is 50%. With three-phase input power, the output ripple is 5%. A 5% output ripple is a clear advantage. Hence, transformer rectifier assemblies with three-phase input power are more popular. Circuit breakers, fuses, voltmeters, and ammeters can be added per customer requirements. The assemblies can be an open frame or inside an indoor enclosure.
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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
Transformer Test
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Beijing GFUVE Electronics Co.,Ltd.
Check whether the performance of the transformer meets the requirements of relevant regulations and technical standards.
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Product
Complete Transformer Test Bench
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Weshine Electric Manufacturing Co., Ltd
Our multifunction Transformer Test Bench (VS-ZHSY Series) is intuitive with all of the ease of working with individual, dedicated instruments. We deliver this experience through our design philosophy. Rather than producing a single, complex system with afterthought towards rendering it friendly, we uniquely combine several intelligent instruments packaged as a single system.
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Product
Voltage Tester Pen
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Shenzhen UYIGAO Electronic Technology Co., Ltd
A non-contact voltage tester is the safest way to make sure the power is off without touching any wires. Before you open an electrical box, you should: - cut off power to the outlet at the main electrical panel - confirm you turned off the right circuit This is where the non-contact voltage tester comes in handy.
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Transformer Winding Resistance Meters
TWA Advanced Series
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The TWA advanced series instruments are designed for six-winding resistance measurement and simultaneous three phase on-load tap changer analysis of both the primary and the secondary transformer windings. This is performed with a one singlestep cable setup, with test currents of up to 40A. Each transformer configuration has a special measurement algorithm which is optimized for the fast stabilization of test results. The TWA instruments generate a true DC ripple-free current. Both the injection of the current and the discharge of energy from the magnetic circuit are automatically regulated.
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Product
DC Josephson Voltage Standard
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The system enables a number of calibration and measurement functions for dc voltages:*Calibration of secondary standards*Calibration of linearities and accuracies of dc voltmeters in the measuring range from 0 to ± 10 V.*Extremely exact output of any reference voltages*Direct comparison of two voltage standard measuring systemsNo other measuring system in the world offers such a variety with the highest precision.
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High Voltage Diode Assemblies
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High voltage diode assemblies are built by adding diodes in series to yield a higher peak inverse voltage. For example, if each diode is rated for 1200 peak inverse voltage (PIV), then six diodes in series would have a total peak inverse voltage of 7200 PIV. The detailed circuit is shown below.
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Voltage Controlled Oscillators
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Mercury Systems’ VCOs (Voltage Controlled Oscillators) offer predictable consistency, rugged design and reliable performance. Our VCO products will meet your application’s most demanding stability and low phase noise requirements; featuring wide tuning bandwidth up to an octave. With custom designs and space qualified versions, trust Mercury to provide the VCOs for your next design.
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Anti-Tamper Sub-Assemby (DC Immune CTs + Potential Transformer)
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SHANGHAI POWOO INDUSTRY CO., LTD
ATS can provide double loop current sampling and power supply for measuring unit of static meter. When load voltage, static meter can in normal condition without single-channel current.
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Product
Non-Contact Voltage Detector
273 HP
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Standard Electric Works Co., Ltd
2 ranges for selection : LOW 50V~1.5kV, HIGH 1.5kV~132kV. There is no power consumption in off mode : 0uA. Nice mechanical slide switch for function selection : HIGH / OFF / LOW. The power consumption in low voltage detection mode : Less than 20mA. The power consumption in high voltage detection mode : Less than 20mA. Bright LED and audible alarm sound when voltage is present. Lightweight, robust and compact. Efficient and easy to use. Users have to use the Hot Stick when test high voltages between 1.5kV~132kV. SEW provides nice optional accessories of Hot Sticks HS-175 and HS-120 for high voltage detection. Optional accessories : HS-175 Telescopic hot stick (triangle-type) and HS-120 Hot stick.
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Product
Surge Voltage Generator
SSG 1500
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Cable fault location with the BAUR SSG 1500. Surge voltage generators are used for pre-location and pinpointing of high- and low-resistive as well as intermittent faults in power cables. The energy stored in a high-voltage capacitor is released at regular intervals or as DC voltage. The thus generated acoustic signal at the fault position can be recorded with a ground microphone and a universal receiver.* High surge voltage up to 32 kV* Continuously adjustable voltage* Voltage monitoring through kV meters with 3 measuring ranges* Automatic discharge unit
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3-Phase AC Voltage Transducer
ENVIROMUX-PT3-600
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Monitors and reports voltage of any 3 phase circuit. Remotely detect blown fuses or tripped circuit breakers. Three 600 VAC inputs, three 4-20 mA outputs. Inputs and outputs isolated from one another. Frequency: 50/60Hz. Maximum primary current: 600 volts. Accuracy: ±0.25% F.S. @60Hz. Output: 4-20 mA. "Zero" adjustment for accurate 0 VAC reading, and "Calibration" adjustment for frequency and voltage level. Powered by the ENVIROMUX-S420MA-24V. Regulatory approvals: UL, CUL, CE. Requires two ENVIROMUX-S420MA-24V to monitor three phases. Caution: installation should be performed by qualified electricians only. Make sure electrical service is disconnected before making any electrical connections.
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Product
Voltage And Current Calibrator
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Precision Mastech Enterprises Co.
A precision instrument designed to generate (source) and measure precise electrical signals.
