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- PJ Electronics, Inc.
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Multi Operational Surge Tester (MOST) Consoles
MC Model
Digital Surge, DC Hi-Pot & Built-In 3 Phase Test Selector Switch all-in-one versatile Tester. The DC Hi-Pot tester has separate panel meters for direct readout (voltage and current) so that no interpretation on the scope's display is ever needed and enables one to ascertain Polarization Index (PI) Test results.
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Transformer Capacity Load No-load Tester
HTRS-V / 261
Wuhan Huatian Electric Power Automation Co., Ltd.
High precision instrument used in transformer capacity, no-load, load and other characteristic parameters measurement.
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Winding Resistance Tester with Demagnetisation Circuit
WRT-10D
The WRT-10D is a high performance winding resistance tester designed for power transformer and large motor applications. It is equipped with a bright LCD display, a rugged high quality cable set, a built-in printer, a full QWERTY keypad and a demagnetisation circuit.
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Transformer Oil BDV Tester (Single Cup)
HTJY-80B / 288
Wuhan Huatian Electric Power Automation Co., Ltd.
The tester is designed to test the power strength of all kinds of insulating oil.
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Transformer On-Load Tap-Changer Tester
HTBYC-4000 / 257
Wuhan Huatian Electric Power Automation Co., Ltd.
Mainly used for measurement transformer with load pick up switch transition waveform, transition time, instantaneous transition resistance value, three-phase synchronism and so on.
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Inflatable High Voltage Testing Transformer
GTU-250KVA/500KV
Wuhan Sangao Electrical Test Installations Limit Co.
SF6 gas -filled testing transformers are especially designed for GIS in the factory and on-site test, and for testing all GIS switchgears and GIS components such as insulators, insulating tension pole, GIS voltage transformer and so on, the PD test can be performed under the general environment because of the merits of encapsulation, the PD level of our equipment can be lee than 3pC, and it can be added a HV bushing to perform the withstand voltage test at the same time.Small and compact dimensions resulting in minimum space requirements. Light-wight components. Rugged construction to withstand long transportation stresses. Direct flanging to the test object. High safety for tester because of encapsulation of all HV parts. Large range of application in conjunction with HV bushing for withstand voltage test. Built-in HV measuring capacitor and coupling capacitor. Built-in HV disconnecting switch to separate multipath test object connector to ensure the safety of HV testing.
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Transformer ON-Load Tap-Changer Tester
WAYZ-2011
Wuhan Sangao Electrical Test Installations Limit Co.
This Transformer on-Load Tap-Changer Tester is acc to Chinese Electric Power Industry Standard, It also can meet the requirement of electrical equipment handover and prevention test standard.To achieve the accurate measurement of on load tap changer's transition time, transition resistance,three-phase synchro nization parameterssyn.It is the best test equipment of on-Load Tap-Changer.
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Transformer Winding Resistance Tester
KRI 9310
KRI 9310 adopt Kelvin four-wire testing method, which effectively eliminates the influence of the resistance of the test line on the test results. It can be able to increases the current to 10A by which can test extremely low resistance to 0.01 Ω(such as amorphous alloy, Copper-nickel, nickel-chromium-iron, iron-chromium-aluminum etc). For the tested objects with high resistance value (CT/PT), the instrument can extend the range to 20 kΩ，so the wide resistance test range enables KRI9310 can cover 80% of the power transformer products on the market and switchgear bus-bar cable etc. The power of the tester use the built-in rechargeable lithium battery that can test hundreds of transformers by one time charging.
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Distribution Transformer Tester
NDB-DOC™
The NDB-DOC™ is a test instrument designed for distribution networks transformers from 10kVA to 2500kVA. It can determine the presence of short circuits or an open circuit in the distribution transformer primary winding & also short circuits on the secondary winding. The NDB-DOC™ is designed to be operated from an arial device or from the ground at the end of a hot stick without disconnecting the transformer’s secondary windings.
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1μΩ-4kΩ AC Milliohmmeter Low Resistance Tester
TH2521
Shenzhen Chuangxin Instruments Co., Ltd.
TH2521 AC Milliohmmeter is a high-performance and intelligent tester widely used to test contact resistance, internal resistance and battery voltage. The application of constant current source with 1kHz frequency can greatly eliminate the potential error caused by thermoelectricity on DUT. This meter has the function to automatically detect contact failures on test cable. At the range of 30mΩ, basic R resolution can reach 1μΩ. It is applicable for transformer, inductance coil copper resistance, relay contact resistance, switch, connector contact resistance, wire resistance, PCB line and via reistance dan metal defect detection, etc. In the mean time, signals, such as HIGH, LOW, PASS, can be output through HANDLER interface, thus it is very convenient to be used in automatic production line.
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ATTR Auto Transformer Turns Ratio Tester
Chongqing Assen Power Equipment Co., Ltd
Transformer turns ratio tester is a new type of fully automatic tester that uses modern electronic technology to measure the ratio of single-phase and three-phase transformers, and does not require any manual “zero” balance.
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Contact Resistance Tester
JYL-200B/100B
Product description: JYL-200B/100B contact resistance tester can measure contact resistance of high voltage switches and circuit breakeres, also can test primar side resistance of transformer and grounding wire in groups
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Turns Ratio Testers
TRT Standard Series
When it comes to choosing a transformer turns ratio tester, TRT Standard series offers some of the most advanced instruments with LCD display out in the market. Each model measures transformer excitation current and phase shift performs automatic vector group detection and magnetic balance on three-phase transformers and three-phase autotransformers. Furthermore, they have a built-in true three-phase power source. Because of that, TRT Standard instruments can test transformers with special configurations, such as phase-shifting, rectifier, arc-furnace, traction transformers, etc.The instruments can output test voltages from 1 V AC to 250 V AC, depending on the chosen model. High test voltage of 250 V AC provides more accurate turns ratio testing compared to other turns ratio testers on the market and extremely low test voltage of 1 V AC enables turns ratio verification of current transformers.TRT Standard series consists of:TRT03 Models (TRT03A, TRT03B, TRT03C) – single-phase voltage up to 100 VTRT3x Models (TRT30A, TRT30B, TRT30C, TRT33A, TRT33B, TRT33C) – single and true three-phase voltage up to 100 VTRT63 Models (TRT63A, TRT63B, TRT63C) – single and true three-phase voltage up to 250 VMore about models differences can be found under the downloads tab, in brochures and comparison sheets.A user can create test templates using the DV Win software and store them in the PC’s memory for later use when in the field.TRT Standard series models have a built-in tap changer control unit. Consequently, it enables remote control of an on-load tap changer (OLTC) directly from the tester. In order to make the most out of this feature, the DV-Win software can be programmed to do everything automatically – running turns ratio tests, changing OLTC tap positions and saving results. This option, especially in combination with test templates, significantly facilitates and shortens the turns ratio testing time.
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Transformer Winding Resistance Testers / TRT ? 2
TRT-2
UDEYRAJ ELECTRICALS PRIVATE LIMITED
Fast measurement: Test current 0.02A to 2A DC, Digital display of resistance and test current.
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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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Transformer Testers
*Quickly tests deenergized power distribution transformers*Briefly energizes the transformer and takes a snapshot of the condition by measuring the voltage, current and power factor of the test signal*Tests overhead, pad-mount and distribution transformers*Audible alarm confirms successful test*Improve SAIDI statistics by quickly testing and getting the transformer back in service*Auto self-test performed with every test*Compact, lightweight and easy-to-use
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Digital Low Resistance Tester
TH2512
Shenzhen Chuangxin Instruments Co., Ltd.
The TH2512 series digital dc low resistance tester i s an intelligent, wide range, high-precision tester which suitable for transformer, inductor copper resistance, relay contact resistance, switches, connectors, wire resistance, contact resistance component solder contact resistance, PCB line, welding hole resistance and metal detection, etc. It’s applied to the production line and can use HANDLER interface and GPIB interface (option) output good/bad signal, in order to improve production line automation testing capability.
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Insulating Oil Dielectric Loss Tester
HDLT
Hention Electrical Equipment Co., Ltd.
This integrated precious insulation oil dielectric loss tester is for measuring dielectric loss TAN and capacitance of transformer insulation oil.This is a high precision instrument; integrated with oil cup, temperature control instrument, temperature sensor, dielectric loss test bridge, AC test power, and standard capacitor, etc.
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SMART MEGOHMMETER
MD-1035e
The Megabras MD-1035e is a smart, microprocessor-controlled, 1 kV insulation tester. Besides the conventional measurement of insulation resistances up to 1 TΩ, its advanced features allow to automatically measure both the Polarization Index and Dielectric Absorption Index, thus significantly simplifying testing of transformers.
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Transformer Turns Ratio Tester
HDBB
HD Power Test Equipment Co.ltd
HDBB Transformer Turns Ratio Tester is very essential to find out the right ration of transformer which has the corresponding on its rated voltage in primary and secondary.HDBB Transformer Turn Ratio Tester is used to test turn ratio and voltage ratio of regular transformer .
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Transformer Oil Tester
GTD-61A
1. The GTD-61A Automatic Oil Tan Delta(OTD) & Oil dielectric loss tester is highly automated, allowing for the measurement of temperature rise, dielectric loss, and resistance in one go.
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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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Transformer Winding Resistance Testers / TRT ? 27
TRT-27 series
UDEYRAJ ELECTRICALS PRIVATE LIMITED
Fast measurement: Test current 2.5A to 20A, Digital display of resistance and test current.
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Megohmmeter Insulation Tester
AMIC-30
The AMIC-30 insulation tester is a small portable meter designed to measure insulation resistance in electrical and telecommunications installations, cables, motors, transformers and other equipment. The test voltage can be programmed in steps from 10 V to 1000 V. The instrument can measure both insulation resistance over a wide range (0,1kΩ...100GΩ), and insulation leakage current, capacitance and other parameters. All test results can be stored in the internal memory and sent to a computer via the included wireless USB receiver. The meters are supplied with rechargeable Ni-Cd batteries.
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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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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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Transformer Bench Tester
KVBT
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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Transformer Turn Ratio Tester
KVBB-II
KV Hipot Power Test Equipment Co.,Ltd
KVBB-II Transformer turn ratio tester is used to check turn ratio of transformer, tap switch situation, whether transformer interturn is short circuit and transformer can run in parallel or not.
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Three-circuit Transformer DC Resistance Tester
HTZZ-S20A / 219
Wuhan Huatian Electric Power Automation Co., Ltd.
Designed for full capacity transformerthree-phase dc resistance test around group.
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Transformer Testing Equipment
Offering you a complete choice of products which include Automatic Transformer Turns Ratio Instruments (ATRI- 3), Automatic Transformer Turns Ratio Instrument (ATRI-201), VTRI-2000 ( Transformer turns ratio instrument ), Current Transformer Test Set (CTC-1), Potential Transformer Tester ( PT Tester ) and Current Transformer Tester ( CT Tester ).
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Automatic Oil Tester
Theses tester sets are used for determining the di-electric BDV of insulating oils, both new and in-service from transformers, switchgear and other electrical equipments.
