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Voltage Transformer
a type of intrument transformer enabling secondary connected metering.
- Valhalla Scientific Inc.
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Programmable Micro-Ohmmeter
4300C
The 4300C is the perfect instrument for tackling ultra-low resistance testing requirements associated with motors, transformers, fuses, connectors, breakers, bonding/weld resistance, and many other applications. The 4300C Digital Micro-Ohmmeter measures a variety of low-resistance devices ranging in value from 100nΩ to 20kΩ. The flexible measurement format of the 4300C provides six ranges of user selectable test current (from 0.1mA to 10A) and three voltage sensitivity settings (20mV, 200mV, and 2V).
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AC-Powered, AC Voltage Monitor, Adjustable
VMA
NAI’s VMA is a field-adjustable, AC-Powered, AC Voltage Monitor used to monitor voltage characteristics of single- or three-phase power lines. This allows normal operation of system loads when the power-line characteristics are within pre-determined limits.High and low voltage limits, and "pick-up" and "drop-out" time delay are field-adjustable. The VMA voltage monitor is ideally suited for rugged defense and industrial applications.
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AC-Powered, AC Voltage Monitor
VAA/VQA
NAI’s VAA and VQA are AC-Powered, AC Voltage Monitors used to monitor voltage characteristics of single- or three-phase power lines. This allows normal operation of system loads when the power-line characteristics are within pre-determined limits. These voltage monitors are ideally suited for rugged defense and industrial applications.
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DC-Powered, AC Voltage Monitor
VAD/VQD
NAI’s VAD and VQD are DC-Powered, AC Voltage Monitors used to monitor voltage characteristics of single- or three-phase power lines. This allows normal operation of system loads when the power-line characteristics are within pre-determined limits. These voltage monitors are ideally suited for rugged defense and industrial applications.
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Control Transformers
ENTES control transformers ensure the safe operation of measuring devices with 24 VAC supply voltage for electical control panels. Input voltages of Control transformers are either fixed (230 or 400V) or selectable with taps (400;230+15-15).
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Current And Voltage Transformer Test Set
iCT1
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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Current Sense Magnetics
Current sense magnetics are used as a low loss method for sensing AC current in a circuit and also provide electrical and safety isolation between the source of the current and the measurement circuit. The key parameters for a current sense transformer are the rms current rating (to ensure it does not overheat in the application) and the safety and voltage isolation (to ensure it conforms to the end-application requirements).
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DC Power Supplies
Power Supplies deliver electric power to a device or circuit (Electrical Load), usually by stepping down a higher voltage. DC Power Supplies step down the voltage and convert it to DC. For example, 220 VAC to 12 VDC. Every power supply has an input or supply power and converts it by various methods to meet the demand from the electrical load. Power supplies are said to be Regulated by controlling the output voltage or current to a constant value, even if the load demand current or the supply power varies. At the heart of any power supply is a Transformer, which converts the supply power to the output power to the load.
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DC Power Supply
PW-3063R
*Use Toroidal Transformer. Low EMI & High EMS.*Triple output, 0-32V/0-6A X2 and 5V/3A .Max. 400Watts*Tracking operation. Max. output 64V/6A on tracking series or 32V/12A on tracking parallel.*4 display, Green LED shows Voltage and Red LRD shows Current. Easy to read.*Compact design. G.W. 9Kgs only. Easy to handle.*The resolution of PW-3063R as high as 0.1v and 0.01A.*Very low Ripple & Noise, less than 0.4mVrms. Very suit for precise measurement.
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DC Power Supply
◎PW-4063R
*Use Toroidal Transformer. Low EMI & High EMS.*Triple output, 0-32V/0-6A X2 and 5V/3A .Max. 400Watts*Tracking operation. Max. output 64V/6A on tracking series or 32V/12A on tracking parallel.*4 display, Green LED shows Voltage and Red LRD shows Current. Easy to read.*Compact design. G.W. 9Kgs only. Easy to handle.*The resolution of PW-4063R as high as 0.01v and 0.001A.*Provide 4Pcs 10turns micro adjust VR for Voltage and Current adjustment. Easy to operate.*Very low Ripple & Noise, less than 0.4mVrms. Very suit for precise measurement.
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Double Voltage Double Frequency Generator Setup
DVDF
This test setup is generally used to perform induced voltage test on the transformers. This set up consists of the USED motor and generator combination to develop the required voltage and frequency. Both generating unit and the drive motor are mounted on a common metallic frame.
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Ferroresonant Power Supplies
Series PRM
These units are modular ferroresonant MIL-STD-461-compliant voltage stabilizers which obtain their source-isolated, overload-protected output from Kepco's proprietary transformer, Flux-O-Tran. This design lends itself to custom volt-ampere combinations, consult factory.
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Filament Transformers
Osborne designs and produces high impedance and unregulated Filament Transformers. An unregulated filament transformer supplies a specified voltage and current to the filament of an electron vacuum tube. High impedance filament transformers are designed around a tungsten tube filament. Osborne often works with our clients to increase the life-span of their vacuum tubes through the use of a regulated voltage supply.
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Fully Automatic Transformer Oil Test Set
OTS-A series
The Motwane Manufacturing Company
OTS-A series is fully automatic microprocessor based transformer oil test set designed with advanced features to measure breakdown voltage of insulation oil accurately. The OTS-A Series preprogrammed with worldwide acceptable standards.The user can define customized standards. The large LCD display with menbrane key pad for easy operation. It is provided with internal memory for 100 data storage & built-in thermal printer for onsite report. The kit is protected by automatic detection of poor input ground.The acrylic oil test vessel provided with adjustable electrode gap setting. The voltage calibrator for on site calibration saves cost & time of user.
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High Frequency Current Transformer
HFCT Ø 140mm
Techimp Clamp High Frequency Current Transformer model 140 is an inductive sensor for partial discharge measurements. It is suitable for online /off line PD tests on : large diameter cables ; grounding rod bar ; etc. A TNC termination is available to connect the Clamp HFCT 140 to the TechImp PD analyzer : PDCheck , PDBase etc. The arrow indicates the requested input current (Iin) direction to get coherent output voltage (Vout) polarity respect to ground. When the sensor is installed with the arrow directed to ground, the detected voltage signal (Vout) has the same phase of the input current (Iin).
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High Impedance Busbar Differential Relay
MIB
The MIB, a member of the M II family of economical and highly functional digital protection relays, is a microprocessor based relay that provides three phase high impedance differential protection for Substation Bus-bars of any voltage level. Use the MIB also to protect electrical machines like transformers, generators or motors against restricted earth faults.
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High Impedance Differential Module
HID
Use the HID module in conjunction with a high-speed overcurrent relay to provide three phase high impedance differential protection for substation busbars of any voltage level. Additionally, it can also be used to protect electrical machines like transformers, generators or motors against restricted ground faults.
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High Impedance Transformers
Osborne high impedance transformers are used to step-up, step-down and isolate voltages in single phase and three phase circuits. A properly designed high impedance transformer can be used an an equivalent to an isolation transformer connected in series with an inductor. The high impedance characteristic may be employed as a current limiting feature in both the primary and secondary circuity.
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High-Voltage Power Supplies For Insulation Checking
IPG
The IPG series of equipment can be used for checking the insulation of coils, cables, transformers and isolators. The high voltage is produced with a 50Hz transformer and adjusted by means of a variable transformer by hand or in automatic mode with a motor.
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IEC Potential Transformer Burdens
• Burdens for IEC specifications rated for various input voltages available • 2.5 to 207.5 VA at 0.8 PFIEC Potential Transformer Burdens
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Injection Transformer
J2101A
The injection transformer is presently the prevalent method for connecting the network analyzer to the circuit being tested, and is primarily used for control loop stability measurements. The goal of the transformer is to inject a signal into the control loop being measured, without impacting the performance of the loop. In order to accomplish this to a reasonable degree, The transformer is isolated and therefore is capable of floating on a high voltage, such as a Power Factor Corrector (PFC), which is often close to 400VDC. Measuring voltages that exceed the voltage rating of the FRA inputs require attenuation probes.
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Injection Transformer
J2100A
The injection transformer is presently the prevalent method for connecting the network analyzer to the circuit being tested, and is primarily used for control loop stability measurements. The goal of the transformer is to inject a signal into the control loop being measured, without impacting the performance of the loop. In order to accomplish this to a reasonable degree, The transformer is isolated and therefore is capable of floating on a high voltage, such as a Power Factor Corrector (PFC), which is often close to 400VDC. Measuring voltages that exceed the voltage rating of the FRA inputs require attenuation probes.
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Instrument Transformer
Our company has achieved a reputed niche in international market by manufacturing and exporting a great range of Instrument Transformer. Widely used in electrical, power generation and engineering sector for transforming voltage or current level, this equipment is in accordance with industry standards. Manufactured using excellent grade raw materials sourced from reputed vendor, Instrument Transformer is offered to clients in different technical specifications. We stringently test this instrument on varied standard parameters.
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Insulation Meter
HT7051
HT7051 has been developed to measure insulation resistance with test voltage programmable up to 5kVDC and measuring range up to 10TΩ which makes it very useful in any industrial application (tests on electric machines, power transformers, electric cables, electric boards, generic devices, etc.) within BT.
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Isolated Gate Drivers
Analog Devices’ isolated gate driver portfolio offers designers performance and reliability advantages over designs utilizing optocouplers or pulse transformers. Utilizing ADI’s proven iCoupler® technology, the isolated gate driver family offers the advantage of a maximum propagation delay of 50 ns, less than 5 ns channel-to-channel matching, a 50-year lifetime for 400 V rms working voltage and galvanic isolation in a single package.
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Isolation Transformers 230V
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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Isolation Transformers 230V
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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Lamp Converters
PeakTech Prüf- und Messtechnik GmbH
This AC / AC voltage converter is particularly suitable for use with halogen indoor lights and other low-voltage light sources that require an AC voltage source for supply. There is a safe galvanic separation between mains and low voltage according to the isolating transformer standard. This pre-assembled AC / AC converter is equipped with an overtemperature switch that cannot be reset.
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Linear Power Supplies
PeakTech Prüf- und Messtechnik GmbH
Is a component that provides power to an electrical device. The simplest design of power supply is the linear power supply, which uses a transformer and a rectifier to convert voltage from a wall outlet into the type of power the device needs.
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Loading Rheostats (Resistive Load)
Supreme Instrument Laboratories
Loading Rheostat is a device specially designed to meet the requirements of Engineering Laboratories, Electrical Test Rooms and Industries. It is used for loading transformers, power generators, supply mains etc. neatly and efficiently. It can also be used advantageously for regulating current and adjusting voltage besides its application for calibrating meters and thus eliminating the need for graded rheostats.
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Megohm Meter
Digital Megohm Meter, model SMG5, is a compact standalone meter designed for checking HVAC compressor insulation. The SMG5 provides a 1000V voltage source, monitors current, and displays the resistance between the test points. Maximum current output is <1mA. It can be used to determine the condition of insulation from winding to ground in a motor, compressor, or transformer. Includes a case, alligator clip lead tip and leads with removable tips.
