Voltage Transformer
a type of intrument transformer enabling secondary connected metering.
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Transformer Monitoring And AVR
Power transformer is a basic equipment for the Transmission and Distribution Network and requires the application of powerful Monitoring and Control Systems. RTU Dt set is developed and intended for medium and large oil immersed Power Transformers with On-load Tap Changers (OLTC). The set provides safe, reliable, easy to use and cost effective power transformer condition monitoring and Automatic Voltage Regulation (AVR).
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Voltage and Continuity Testers
Amprobe voltage and continuity testers have built-in shakers for fast, easy troubleshooting with CAT IV 600V/CAT III 1000V input protection. To safely detect voltages up to 122kV without contact to the current carrying conductor, choose an Amprobe high-voltage tester. These intrinsically safe tools are ideal for industrial, utility, and mine applications.
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Personal Safety Voltage Detector
288 SVD
Standard Electric Works Co., Ltd
● AC Voltage detection: 240V ~ 50kV ● Waterproof● Easy-to-wear on body or belt ● Ultra-bright LED indication● High pitch sound indication● Self-test & diagnostic circuitry● Friendly priority alert reporting● High impact type casing● Different alerting sound & light● Meets EN 61326-1● Dimension : 114(L) × 67(W) × 27(D) mm● Weight : Approx. 152g (battery included)● Power supply : 9V(6F22) × 1
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Transformer Test Equipment
A range of equipment dedicated to the testing of transformers of all types and sizes.
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Dual Channel High Voltage Linear Amplifier
A400D
This unit contains two independent A400 amplifiers that share common ground reference and power supply.
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Transformer Turns Ratio Meter
TTRM 102
SCOPE introduces state of the art precision single 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. TTRM 102 along with turns ratio, measures ratio deviation, phase angle deviation, magnetizing current and detects tap-position of single phase transformer in charged switchyard condition. The range of AC voltage selection offers high accuracy in measurement.Both the instrument have in-built TFT display with touch screen and thermal printer. The user friendly, simple instrument makes the testing more easy. With the touch keypad it is possible to enter required DUT information.The ratio results are displayed with % error. Internal non-volatile memory gives the provision of storing test results.Further data can be downloaded to PC or copied to memory stick through USB port provided.
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Connect PT100/PT1000 Sensors To Output A Voltage Signal
K- PT100/1000
Our K-PT module is designed to connect up to PT100/PT1000 sensors and simply provides an output voltage signal. Thus enabling the most standard voltage measurement devices to work with PT100/PT1000 sensors. The PT100 sensors offer excellent accuracy and repeatability.
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Precision Voltage and Current Sources
VI-700
The VI-700 Voltage and Current Source is a versatile precision dialable or remotely programmable voltage and current source. Its three ranges provide up to 20 V full scale (200 V with the HV option), and down to 100 mV resolution; and 20 mA full scale down to 0.1mA resolution. Both voltage and current outputs are available simultaneously. The output is set by a range selector and thumbwheel switches in the LOCAL mode, or by a digital input at the rear panel. The REMOTE mode control can be a RS232 or IEEE-488 interface.
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High Voltage Instrumentation
For applications requiring high voltage isolation, Encore Electronics offers a line of DIN rail mounted instruments.
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Screwdriver Probe Voltage Tester
SD-328H
Easy and safeTests AC/DC voltage from 110-250VHandy pocket screwdriver is a fully functional voltage testerInsulated screwdriver shaftConvenient screwdriver tip and pocket clip
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AC Test Transformer Products
Shanghai Guantu Technology Co., Ltd.
Manufacturing scope:Output voltage: 0~200kVOutput capacity: 0~20kVATechnical features of AC test transformer:Light weight; adopting oil-filled and air-filled structures reduces weight by 20% year-on-yearStatic noise; uniform electric field design and special fastening structure, no discharge and no mechanical noise at rated outputHorizontal iron core structure reduces the center of gravity of the equipment to a low pointMulti-flange combination with high structural strengthKey parts are cushioned with advanced elastic materialThe control box has complete protection functions and strong overload capacity
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Current Transformer Test Set
Vanguard Instruments Company, Inc.
The EZCT-2000C is Vanguard’s third-generation microprocessor-based current transformer test set. Designed specifically for CT testing, the EZCT-2000C has the following outstanding features that can greatly increase productivity and save time during the commissioning stage:
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2kV, 400 MHz High Voltage Differential Probe
HVD3220
The HVD3000A series of high voltage differential probes cover the fullest range of applications, from 120/240 V switch-mode power supplies through 600 V class and 5 kV electrical apparatus. The table below provides a list of recommended probe models based on specific device under test applications.
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Three-Phase Transformer Winding Resistance Meters
TWA Standard Series
When it comes to winding resistance measurement on three-phase power transformers and autotransformers, TWA Standard series offers some of the most technically advanced instruments with LCD display in the market. Both models are capable of testing six transformer windings with a one-time cable connection, as well as three-phase automatic transformer demagnetization. The stored magnetic energy is safely automatically discharged at the end of the test. The built-in tap changer control unit enables automated test mode, where the instrument operates the tap changer without operator input and records winding resistance results based on pre-selected stabilization criteria. This option makes the operator’s job significantly easier.Both models can output test currents from 5 mA to 25 A DC for the purpose of winding resistance measurement. TWA40D has a special test mode for checking the synchronization of on-load tap changers with three phases simultaneously tested in parallel, in which the total test current can rise to up to 40 A DC.TWA40D has additional advantages when it comes to non-intrusive tap changer analysis. The unique DVtest method enables checking the moving contacts of on-load tap changers during the transition, measuring the transition time, detecting open circuits, and many other types of faults. It is performed with 0.1 ms sampling rate, simultaneously with the measurement of tap changer motor current which helps with the detection of motor and mechanical issues. A special proprietary algorithm is used for testing tap changers connected through a built-in series (booster) transformer. The DVtest can be performed either on one phase or on three phases simultaneously. It can also be performed as an additional test simultaneously with the winding resistance test in all tap positions.An additional unique advantage of TWA40D is the capability of simultaneously testing the winding resistance of all three phases of a three-phase transformer (connected in a YN configuration). This can significantly shorten the total testing time – for example, it enables the operator to perform 33 measurements instead of 99 on a tap changer with 33 tap positions.The test leads for TWA three-phase transformer winding ohmmeters are interchangeable with the TRT turns ratio testers, which means that both sets of tests can be performed with a single test lead connection to the power transformer terminals.
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High Voltage Probe
PD-28
Kusam Electrical Industries Limited
Most Digital Multimeters can measure AC Voltage up to 750 /1000V and DC Voltage upto 1000V DC. To extend the measuring range of the digital multi meter for low - power , high - voltage , high impedance circuits such as TV, Video Monitors.
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LXI High Voltage Switching - 10xSPST Plugin Module
65-233-904-HI
The 65-233-904-HI plug-in module is part of a scalable high voltage switch platform that provides a high voltage switching solution with capability up to 9 kV.
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Voltage Amplifiers
Switchable gain up to 100 dB (x 100,000)Bandwidth DC to 100 kHzDC-drift 0.6 µV/°CInput noise down to 0.4 nV/√HzSwitchable AC/DC-couplingLocal and remote controlInput impedance up to 1 TΩ
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High Voltage Breakdown Tester
Model HV-55
Laxtronics Instruments & Controls Pvt. Ltd
5 Kilo Volt AC, 5 Kilo Volt DC, 30 Milli Ampere, Timer 0 To 100 Seconds, HV Prods, Start-Stop-Trip-Reset Using Single Switch On The Test Prods. Start Function Apply Test Voltage From 0 To Set Voltage Gradually.
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LXI High Voltage Switching Multiplexer
65-231-914-HI
The 65-231-914-HI plug-in module is part of a scalable high voltage multiplexer platform that provides a high voltage switching solution with capability up to 9 kV.
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Non Contact Voltage Indicator
PL107N
Contact-free audible and visual indication of AC voltages between 90 and 1000 V AC Clear, omnidirectional flashing LED Quick and accurate detection of cable breaks Detects microwave leakage Phase detection in sockets Press to test switch avoids nuisance buzzing and extends battery life Supplied complete with 1.5 V AAA batteries
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Transformer Heat Run Tester
1. Suitable for all transformers below 240MVA heat run test and winding resistance testing.2. Printing heat run data automatically.3. With double power supply, can test high voltage side and low voltage side simultaneously and test any operation respectively.4. With anti breakage protection function of inductive test items.
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Digital Clamp Current Tester For High Voltage
HCL-36UX
MULTI MEASURING INSTRUMENTS Co., Ltd.
・Display measurement value on your smartphone through blue-tooth connecting.・Measurement value can be kept in the our cloud server.・In addition to measured values, location registration by GPS, temperature, date and time can also be saved.
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Digital 10kV High Voltage Insulation Tester
4310 IN
Standard Electric Works Co., Ltd
• Protection class: IP65 (Lid closed)• 2 Lines × 16 Characters LCD• Microprocessor-controlled• Tests insulation resistance up to 2 TΩ • 4 Insulation test voltages: 1000V, 2500V, 5000V, 10000V• AC / DC Voltmeter (30~600V)• Short-circuit current up to 5mA• PI (Polarization Index) indication• DAR (Dielectric Absorption Ratio) indication• Auto-ranging on all insulation ranges• Auto-hold function to freeze reading• Overload protection• Adjustable testing duration: 1~30 minutes• Internal memory for data storage• Displays testing duration for insulation measurement • Auto-off function• 200 measurement results can be saved in memory and recalled on display
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Ultra-low Noise High Voltage Amplifier
WMA-200
The Falco Systems WMA-200 model is a high quality, high voltage, linear laboratory amplifier optimized for experiments requiring world-class, ultra-low output noise. The excellent noise performance, combined with the wide bandwidth and large voltage range make this amplifier the preferred choice for the most demanding precision positioning systems. The amplifier will routinely enable sub-atomic positioning resolution with piezo positioning systems and MEMS devices. Two WMA-200 amplifiers and a WMA-IB-LN phase inverter - buffer can be used to double the output voltage.
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Current Transformer Tester
CT-T1
The CT-T1 is a microprocessor-based Current Transformer Tester that measures CT excitation current, turns ratio, and winding polarity tests, all without having to switch the leads during testing. The instrument has a fully automatic knee point detection (ASA 10/50, IEEE 30°, IEEE 45°). Although includes 5 low side taps and 1 high side tap.
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Step Up Transformer
MagD
SCOPE proudly introduces Step-Up Transformer - MagD, specially designed to cater the needs of testing of instrument Transformers. Before new systems are put into service or after any occurrence of fault, the instrument transformers need to be tested for their outputs. It is to be ensured that these instrument transformers are giving proper outputs to the protective relays. MagD is used to plot excitation curves for instrument transformers. Inbuilt voltmeter and ammeter, eliminates the need of external meters for plotting of curves. It can also be used for de-magnetization of transformer cores and also turns-ratio tests can be conducted using MagD.
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High Voltage Non-Contact Current Probe
P02-0802
The TESCO High Voltage Non-Contact Current Probe (Catalog No. P02-802) was developed using current sensor technology. It is a two-piece, True RMS ammeter with a fiber optic link between the high voltage sensor and the readout at ground potential. The sensor is mounted on a hotstick and slipped over a high voltage line.
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12-400V AC / 12-500V DC Universal Voltage Tester
1996A
Peaceful Thriving Enterprise Co Ltd
This is convenient for low voltage, home electricity, cars and high voltage. There is 5-stage-LED-display indicators for voltage reading 12-400VAC or 12-500VDC.
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Scalable High Voltage LXI Matrix
These plug-in matrices also offer built-in scan list sequence stores with triggering capability, providing users with the ability to set a series of pre-determined sequences on an LXI instrument. The sequences can be triggered by software or one of the sixteen DIO software configurable open collector triggers. They also feature multi-bus capability for parallel testing.
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Low Voltage Test & Measurement
Low voltage testing is able to catch errors such as shorts and opens by applying current to a wire and measuring the voltage. The wire will have a current affected by several factors including resistance and components. If the wire is connected correctly, the test will read low resistance. That means current is flowing through the wire as expected and reaching the required connections. If the tester reads high resistance it means something is impeding the current from reaching its destination. This could be caused by a number of causes.
