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Product
Transformer Protection
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Schweitzer Engineering Laboratories, Inc.
Transformer protection products and systems provide complete primary and backup protection for all types of transformer faults. They are suited for use in utility-, industrial-, and commercial-scale power transformer systems.
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Product
Potential Transformers
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Osborne Potential Transformers (PT’s) are used to reduce higher system voltages 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 potential transformers are to be used for power measuring applications.
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Product
Voltage Indicators
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*Measures voltage from 100V to 138kV line‑to‑line.*Can be used individually as voltage indicators or together for phasing operations up to 100 ft (30 m) apart.*Two LED displays are automatically synchronized during phasing operations.*Clear in-phase and out-of-phase indication.*Versatile for overhead and underground applications.*Capacitive Test Point and Peak Hold modes
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Product
Transformer Bench Tester
KVBT
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KV Hipot Power Test Equipment Co.,Ltd
Transformer Test System is applied for ex-work and maintenance detecting on various transformers.
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Product
Voltage Indicators
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Available with a digital readout or a simplified LED display Seaward's specialist range of voltage testers have the versatility and durability to cope with all types of user demands.
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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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Product
Transformer Preamplifier
SR554
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Stanford Research Systems, Inc.
The SR554 is a low-noise, transformer-coupled preamplifier optimized for source impedances between 0.05 Ω and 1 kΩ. With an input noise of only 0.1 nV/√Hz, the SR554 can be used in a wide range of low-noise applications.
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Product
Stand Alone Low Voltage Tester
Model 256/PC
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Internal Memory: 8 program locations without test point labels or 2 program locations with test point labels. Removable Memory: 16 program locations without test point labels, or 4 program locations with test point labels.
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Product
JFET Voltage Preamplifier
SIM910
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Stanford Research Systems, Inc.
The SIM910 and SIM911 are low-noise, programmable preamplifiers which are ideal for a wide range of small signal applications. The primary differences between the two models are their input impedance and input noise.
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Product
Partial Discharge Testing Of Transformer & Localization System
AE-150™
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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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Product
Current Transformer
CT
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The split-core current transformers are easily installed with the snap on design.
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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
OEM Voltage Input0 to 2.5/10/25V
TGPR-0700
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A voltage input data logger that is supplied uncased so that it can be built into custom applications.The TGPR-0700 can be used to record the output from a number of industry standard sensors. Common applications include pressure and windspeed monitoring.
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Product
Potential Transformer Test Set
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Supreme Instrument Laboratories
The two voltage vectors, one from Standard Potential Transformer and the other from the Potential Transformer under test energies the high permeability magnetic core and then associated windings try to annual the residual magnetism which occurs due to error. The differential vectors will be proportional to phase error and ratio error magnitudes.
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Product
Transformer Turns Ratio Meter
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International Biological Laboratories
Transformer Turns Ratio Meter is compact in size and is capable to measure actual turns ratio of different types of transformers like Distribution, Power, CT, PT, Auto-transformers, Control & Measuring transformers etc.
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Product
Voltage Tester
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PeakTech Prüf- und Messtechnik GmbH
Uses voltage detection technology for the detection of voltage in cables, cords, circuit breakers, lighting fixtures, switches, outlets and wires.
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Product
Handheld Infrared Oil Analyzer
FluidScan® 1000 Series
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The FluidScan® 1000 series handheld Infrared oil analyzer provides direct quantitative measurement of a lubricant’s condition and plays an important role in Machine Condition Monitoring (MCM) for proactive and predictive maintenance in Reliability Management programs. It determines when oil needs to be serviced due to degradation of the oil chemistry or contamination by other fluids such as water or the wrong oil. It is compliant with ASTM D7889 “Standard Test Method for Field Determination of In-Service Fluid Properties Using IR Spectroscopy”.
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Product
300nA NanoPower Voltage References
ISL21080
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The ISL21080 analog voltage references feature low supply voltage operation at ultra-low 310nA typ, 1.5µA max operating current. Additionally, the ISL21080 family features guaranteed initial accuracy as low as ±0.2% and 50ppm/°C temperature coefficient.
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Product
High Voltage Measurement
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High Voltage Pulse Attenuator is used to attenuate high voltage pulse signals in a 50 system. It is consist of highly surge robust components with great voltage linearity. The device is symmetrical, Input and output can be exchanged.
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Product
0-10V Battery Voltage Sorter Tester
TOB-0918
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Xiamen Tob New Energy Technology Co., Ltd
0-10V Battery Voltage Sorter Tester With Battery Low/High Voltage Alarm For All Kinds Of Batteries. TOB-0918 Battery voltage tester is a Voltage sorter with single-chip control of portable test instrument, This voltage tester is with a voltage limit set and automatic judging function, we can set the voltage in the range or out the range alarm function.
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Product
Voltage Variable Attenuators
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Macom Technology Solutions Holdings Inc.
Voltage Variable Attenuators (VVA) from MACOM offer the ability to control the attenuation level relative to a voltage. Attenuation range is up to 30 dB covering frequency as high as 45 GHz. VVAs feature excellent return and insertion loss along with high IP3 in small SMT packages.
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Product
Transformer Turns Ratio Tester
CXBC-901
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Shenzhen Chuangxin Instruments Co., Ltd.
Transformer Turns Ration Tester is applied to measure the voltage ratio and group testing of the three or single phase transformer. All the test results could be printed by the micro printer or saved in the tester.
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Product
Panel-mounted Voltage Power Amplifier
PAV120Bi
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PAV120Bi is specially designed for R&D of power system simulation. It is adapt to various capacitive and inductive load. It is with 6 channels voltage outputs, each channel with 120V/60VA maximum output.
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Product
Harmonic Mitigation Transformer
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A specialized three-phase transformer designed to reduce harmonic distortion and voltage distortion caused by non-linear loads (e.g., computers, VFDs) in electrical distribution systems.
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Product
Portable Power Source - Power Transformer and Charger Manufacturer
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JYUE LII INTERNATIONAL CO., LTD.
A&V power transformer supplies and manufactures certified portable power source and charger with industrial UL / cULus / CB / CE / TUV & ISO 9001:14001 certified electrical products and manufacturing facilities based in Taiwan. Portable Power Source Includes C Series, H Series, J Series, L Series, M Series, P Series, Q Series, W Series, Power Bank Series Portable Power Source
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Product
Non Contact Voltage Detection
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Our range of Non Contact Voltage Detectors offer a safe and accurate method of checking for voltage present on a conductor. With audible and visual indication, our range offers total confidence when checking cables for live voltages
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Product
High Voltage Power Source
PM1000
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The PM1000 is a high voltage power source capable of supplying up to 1000 V/20 mA to a load. It is intended for use in measuring leakage and breakdown voltages of devices. There are five voltage ranges and five current ranges.
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Product
Micropower Voltage References
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Analog Devices offers a broad line precision micropower voltage references with extremely low quiescent currents (series references) or minimum shunt currents (shunt voltage references). All of our precision voltage references offer excellent initial accuracy and low temperature drift over time and temperature. Our Reference Plus products combine precision voltage references with comparators or amplifiers.
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Product
PC Controlled High Voltage Tester
Cablescan H23
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The Cablescan H23 combines low-voltage solid-state technology with high-voltage relay technology ¾ solid-state devices for testing continuities and components at low voltage; relays for testing high-resistance isolation and high-current continuity.
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Product
Transformer Testing
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Haomai Electric Power Automation Co.,Ltd.
1)Test Standard:IEC60076 & IEEE C57.12.90 2)Voltage ratio measurement of transformer 3)Turns ratio measurement of transformer 4)Group vector measurement of transformer
