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Voltage Transformer
a type of intrument transformer enabling secondary connected metering.
- Pickering Interfaces Inc.
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High Voltage 9 Pin D-Type Cables - Connector to Connector for Pickering
The connector to connector cable assemblies below are suitable to use with Pickering cards and modules that utilize a high voltage 9-pin D-type connector.
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Automatic Voltage Transformer Comparator
KATC-V2
Knopp’s KATC-V2 is a highly accurate state-of-the-art voltage transformer comparator that is compatible with all older generation Knopp comparators, and is designed to be a direct, plug-in replacement with additional test set cables to fit in the existing Knopp Voltage Transformer Test Systems.
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PD-Free High Voltage Transformer
YDQ
Wuhan Sangao Electrical Test Installations Limit Co.
PD-free HV Testing Transformer is a high-end testing transformer which firstly marketed in China by our company. The High-light characteristic of the equipment reflects the smallness in size, lighter in weight clean, oil-free, unnecessary static of field investigation, longer working life without maintenance and slightness in non-partial discharge. It is used for the insulators' voltage-resistance testing.
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Portable Analog Instruments
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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Test Equipment for Instrument Transformer
is desirable for measuring ratio errors and phase angles of low current (voltage) transformers used in electric devices, such as watt hour meters, smart meters, digital current meters, and transducers, etc.
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AC Voltage Test Systems
HIGHVOLT Prüftechnik Dresden GmbH
AC resonant test system is used for factory testing of middle, high and ultra-high voltage cables, capacitors, generators, motors, power transformers and gas-insulated switchgears.
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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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Transformer Tester
Kvtester Electronics Technology Co.,Ltd
High precision instrument for measuring characteristic parameters of transformer capacity, no-load and load. The instrument is a multi-function measuring instrument, which is equivalent to the usual two kinds of test instruments: the transformer capacity tester + transformer characteristic parameter tester. The utility model can precisely measure a series of power frequency parameters of a plurality of transformers, such as the capacity, the type, the no-load current, the no-load loss, the short circuit (load) loss and the impedance voltage.
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Surge Voltage and Surge Current Testing Systems
HIGHVOLT Prüftechnik Dresden GmbH
Pulse Voltage Test Systems are used for surge testing on transformers, cables, gas insulated switchgear (GIS), arresters, and other high voltage equipment.
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Digital Tap Position Indicator With Voltage &Counter Display
NMC''s latest offering digital tap position indicator with voltage and counter display, type: TX-204, is a fully micro controller based instrument used to indicate the tap position of the power transformer also indicating the voltage and counter indications simultaneously at a same time.
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Automatic Voltage Regulating Relay- Standard Model
NMC’s Microcontroller based Automatic Voltage Regulating Relays (AVR Relays) are latest technology based Relays used for regulating the secondary voltage of Power Transformers with On Load Tap Changer (OLTC). The Parameter settings are made through the front panel keys & are stored in NVRAM. Independent time delays can be set for first control pulse & subsequent pulses. Built-in Tap displays Tap number of Power Transformer. OLTC is blocked for UV, OV, OC, CF, Min/Max Tap Positions & Tap Fail . in manual mode, Tap Raise/Lower can be achieved through front keys. In TEST mode, Relays, Display and LED indications can be checked. A pair of contacts are available for Raise, Lower, UV, OV, Manual Mode, CF, TF & OC. There are two nos. of 5 Amps C.T.’s available, one for the Over Current blocking and L.D.C. & other for measuring the Current.
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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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Transformer Turns Ratio Meter
TTRM 302
SCOPE introduces state of the art precision three phase Transformer Turns Ratio Meter (TTRM ) designed for field testing as well as factory testing of power transformers, instrument transformers and distribution transformers of all types. Along with turns ratio, this light weight and reliable instrument measures ratio deviation, phase angle deviation, magnetizing current and detects tap-position of single as well as three phase transformers in charged switchyard condition. The instrument has facility to automatically detect vector group of all majority configurations available. The differant AC voltage selection offers high accuracy in measurement.
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Digital Tap Position Indicator With Voltage Display
NMC's Digital Tap Position indicator with Voltage Display, type: TX-202, is used to indicate the Tap Position of the Power Transformer with On Load Tap Changer as well as also indicates the voltage.
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AC Hipot Tester /DC Hipot Tester
YD-Series
Chongqing Gold Mechanical & Electrical Equipment Co.,Ltd
YD series HIPOT tester is applied to test the insulation ability of electric power equipments and insulation materials at power frequency high voltage. The insulation test result of the tester is go or not go. Also the YD series HIPOT tester is a universal power source in HV test. The maximum output voltage and capacity could be customized according the requirements of custom.The tester is consists of single HV transformer and main control box. There are two kinds of HV transformer according to the insulation materials of the HV transformer.They are dry HV transformer and oil HV transformer. For the dry HV transformer the insulation material is epoxy resin.For oil HV transformer the insulation material is insulation oil. The dry HV transformer has a smaller size and less weight than oil HV transformer. But the maximum output voltage is less than 100kv for dry HV transformer. The functions of the main control box are voltage output regulation, protection in emergency and voltage/current value indication
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Load Length Meter
Design for finding out the total voltage of neon tubes in a circuit, help to Choose correct rating of neon transformer;- Easy to use just like a neon transformer;- With color LED indicators, clearly shows the test result;- With build-in over voltage protection circuit.
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Precision Multirange Voltage Transformers
WP-36000
The WP-36000 Transformer is primarily a laboratory standard. The high degree of accuracy and multiplicity of ranges makes this transformer the standard for precision calibration work. With the aid of this transformer, very accurate determination can be made of the ratio and phase angle characteristics of voltage transformers having ratings from 14,400 to 36,000 volts.
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Quasi Square Wave Constant Voltage Transformers
Osborne Quasi Square Wave Constant Voltage Transformers are used to regulate output voltages for applications that have varying input voltages. When used with a rectifier conversion circuit, these units provide an elegant design approach to voltage regulation. Osborne achieves this innovative approach by partnering the constant voltage transformer with an auxiliary resonant capacitor winding. The result is a unique (though time honored) technology that offers reliability, performance, and cost advantages over other styles of voltage regulation.
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Extended Range Ultrasound Detector
PowerBeam 300
The PowerBeam 300 accurately pinpoints source of ultrasound to within 1 degree from center and improves the sensitivity of the UL101. The "PB300" was originally designed for the indication and location of corona discharge and arcing on medium/high voltage transformers.
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Potential Transformers
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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20Hz Injection Kit Monitoring System
Signals & Systems India Private Limited
The Display used to monitor the 20Hz and 50Hz current passing through NGT transformer. This could help to monitor the stator earth fault and could record the current every minute. The current shall be displayed in milliamps for both 20Hz and 50Hz. If an earth fault occurs in the generator star point, the 20 Hz voltage drives a current through the fault resistance. The current can be measured using clamp-on CT which would be clamped between load resistor and NGT. It gives an indication of the current values are lower or higher than the set threshold.
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High Voltage Transformers
We, NMC, are engaged in manufacturing AC/DC High Voltage Transformers ranging from 5kv upto 150Kv having current capacity from 10mA to 200mA AC/DC in Air cooled or Oil Cooled type as per the customer requirement.
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High Voltage Transformer
RR manufactures HIGH VOLTAGE TRANSFORMERS for various Industrial Applications.
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3 Phase Voltage Extension To Turns Ratio Meter
T-REX
The Raytech three phase voltage system option T-Rex is an optional system accessory for 3-Phase transformer ratio meter test sets designed by Raytech (i.e. TR-MARK III). T-Rex was designed to give Engineers and Test Technicians the ability to test the phase relationships and actual voltage ratios of transformer windings while applying three phase voltage.
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High Voltage Oil Test Set
Supreme Instrument Laboratories
Supreme High voltage Oil Testing Apparatus is designed for testing of dielectric strength of transformer Oil or any other insulating liquids. It constitutes a complete equipment and apart of an A.C. supply of 230 / 240 Volts, no other supplementary facilities are required for its operation.
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COMPUTERIZED LCRTZ TEST SYSTEM (Automatic Transformer Test System)
CVCT-S20
Ideal for fast and fool proof testing of COILS AND SMALL TRANSFORMERS like SMPS transformers, Telecom transformers (HYBRID, POT CORE, RM-CORE), Pulse transformers etc. The systems scans at one stroke, all the windings of a transformer and tests as per definition of test procedure. The test procedure can be pre-programmed and stored under User friendly menu driven software . Any semi-skilled and unskilled person can be engaged for actual testing purpose. Can Select test frequency, pin number, parameters, test conditions, limits for each test. Test any pin to any other pin any defined parameter.Test Parameters :-> Inductance-> Capacitance-> AC Resistance, -> DC Resistance, -> Impedance, -> Leakage Inductance,-> Transformation Ratio & Winding PolaritySPECIFICATIONS :Measurement Frequencies : 50 Hz, 100 Hz, 500 Hz, 800 Hz; 1 KHz, 2 KHz, 5 KHz, 10 KHz. Measurement Voltage: 0.1 V – 1.0 V RMS adjustable under program control.
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AC Resonant Test System
Yangzhou Power Electric Co., Ltd
Testing of certain apparatus requires much high voltage or current that a straight AC test system is not sufficient. Thus resonant test reactor with a variable core is needed. The main advantage of such test systems is lower input power and larger output power. The resonant test system is designed to compensate capacitance in the testing circuit precisely by tuning inductance of the test system. AC resonant test system is used for factory testing of middle, high and ultra-high voltage cables, capacitors, generators, motors, power transformers and gas-insulated switchgears.
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Automatic Instrument Transformer Test Set
*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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Phasing Sticks
High voltage phasing rods enable phase comparisons to be made at the point of paralleling two circuits without the interposition of voltage transformers or secondary wiring circuits.
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Step & Contact Meter
HT2055
HT2055 consists in a power unit and a voltmetric unit, necessary for carrying out step and contact voltage measurements in industrial electric installations (TN systems, transformer cabinets) with a rated test current up to 50A.
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Automatic Three Phase Transformer Ratio Meter
ATRM PLUS
*Fully Automatic measurement.*Wide selection of Excitation Voltages of 10V, 40V, 100V, 230V & 250V from front panel.*4V Excitation voltage provided for CT measurements*Ratio range of up to 5000; direct display of measured ratio.*No conversions required.*Automatic Jumper selecting as per the vector*Diagram of Transformer.*Automatic testing of all 3 phases in 3 phase transformers*Without manual intervention.*Displays % deviation from a nominal ratio.*External storage facility using pen drive.*Internal storage up to 10000 readings.*Touch screen 7” Color TFT display with backlighting with*Resolution of 800 X 480.*Tap changer facility.*Computer interface using RS-232 or USB.*Windows Interface software provided for data transfer.*USB printer interface.*Four terminal measurements to reduce errors due to*Winding and lead resistance.*Auto print and storage facility.Fast measurements.
