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Fully Automatic Transformer Winding Resistance Tester
Measure DC resistance of transformers windings etc. Introduction: The NMC ''TDR'' is a high precision, new generation, light weight large output current and micro-processor controlled tester. This replaces old DC wheat stone bridge and double arm bridge for measurement of DC resistance. ''TDR'' adopts new advanced test current power supply technology, four terminal measurement, digital display of resistance value and test current. ''TDR'' is powered by 220V AC mains single phase supply. The measurements are accurate as the test current is highly stable. High automation is achieved with automatic discharge warning.Principle: The constant current generated is fed to the resistance under test through the current terminals and the voltage drop across the resistance under test is measured and displayed in ohms. A true four terminal measurement is used to eliminate the need for lead resistance compensation.
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Acoustic Imaging
Acoustic imaging offers cutting-edge solutions for precise leak detection, partial discharge identification, and mechanical fault diagnosis. With high-performance microphone arrays and advanced algorithms, our products ensure exceptional industrial safety and perfomance.
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Shielded Rooms
HIGHVOLT Prüftechnik Dresden GmbH
Electromagetic field and line-conducted interference needs to be eliminated in order to measure low-intensity partial discharges with a PD background noise level (≤ 1 pC) in accordance with IEC 60270.
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StreamPro ADCP
Teledyne Marine RD Instruments
The StreamPro's 'bottom tracking' capability provides the ability to move continuously across the stream to obtain a discharge measurement in two or three minutes instead of thirty minutes to an hour using the older point-by-point method.
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SF6 Gas Analysis Systems
Weshine Electric Manufacturing Co., Ltd
Discharges during switching operations in SF6 gas-filled plant lead, over time, to increased concentrations of toxic and highly corrosive decomposition products. The use of gas analysis instruments is absolutely necessary to monitor the concentration of harmful decomposition products, thus ensuring long-term plant safety.
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Sixteen Channel 12-Bit Analog Input/Output Cards
PCI-A12-16A
Model PCI-A12-16A is a multifunction, analog-to-digital, digital-to-analog, and digital I/O card. It accepts up to 16 single-ended inputs or eight differential inputs. Inputs are protected against over-voltage conditions up to ±35 volts and typically survive static discharges beyond 4000 volts. Conversions can be initiated in any one of three ways: (a) software command, (b) external start commands, or (c) on a timed basis using on-board programmable counters. Converted data may be transferred to the computer by one of two software selected methods: (a) polling for the end-of-conversion signal, or (b) by generating an Interrupt when the end-of-conversion signal occurs.
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Principle Of Optical Emission Spectrometry
Optical emission spectrometry involves applying electrical energy in the form of spark generated between an electrode and a metal sample, whereby the vaporized atoms are brought to a high energy state within a so-called "discharge plasma".
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Analogue (1kV below) Insulation Tester
4132 IN
Standard Electric Works Co., Ltd
● High quality Taut Band movement.● Three insulation test voltages(DC) : 250V, 500V, 1000V.● Two continuity test on "low ohms" : 3Ω & 500Ω.● Compact and lightweight.● AC voltmeter with linear scale up to 600 Vac.● 200mA continuity short circuit current.● 1mA test current on insulation test at nominal voltage.● Automatic discharge of capacitive and inductive circuit with charge stored in the circuit under test.● Live warning and display or external voltage presence.● Fuse, air gap, crowbar and overload protected.● On line battery monitoring shows if battery is ok.● Manual zero ohm adjustment.● Low battery consumption.● Mirror scale.● Push and turn locking switch for continuous and hand free testing.● Designed for meet international standards.● Supplied with high quality test leads.● BS 16 edition.
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Real-Time Online Monitoring to Detect and Analyze Potential Partial Discharge (PD) Signals and Insulation Faults using UHF, AE, and HFCT
PDMonitor
Power Monitoring and Diagnostic Technology Ltd.
The PDMonitor, which utilizes Ultra High Frequency (UHF), Acoustic Emission (AE) and High Frequency Current Transformer (HFCT) sensors and is designed to conduct real time online monitoring to detect and analyze potential Partial Discharge (PD) signals and insulation faults before they lead to breakdown or catastrophic failure in power assets. The system provides the developing trend of the PD, when occurring, as alarms in real time, thus helping to predict the insulation degradation status of the asset, prevent sudden accidents, and provide an effective database for Condition-Based Maintenance (CBM) of power assets.
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Digital (1kV below) Insulation Tester
2151 IN
Standard Electric Works Co., Ltd
● Microprocessor-controlled.● 68 × 34mm(2.677” × 1.338”) large LCD display.● 3½ digital LCD(2000 counts) a LCD indicated instrument for insulation.(MΩ), continuity(Ω) and AC voltage.● Three insulation test voltages(DC) : 250V, 500V, 1000V.● Automatic circuit discharge.● Test insulation at rated voltage into a 1mA DC load.● >200mA short circuit testing current for a resistance tests.● Auto ranging.● REL function.● Auto power OFF.● Fuse protection.● Auto data hold.● BS 16 edition.
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EV And Pack/Module Tester
Discover the Series 8500, an innovative and fully automated test system engineered to evaluate the performance of Electric Vehicle (EV) components, Energy Storage batteries, Modules, and Packs in real-world conditions. This high-specification system not only delivers accurate results but also allows the energy produced during discharge to be returned to the electrical grid.Using Maccor’s standard fully featured battery test software, the Series 8500 can perform virtually any type of battery test including FUDS, SFUDS, DST etc. for electric vehicle batteries and standard cycling tests for energy storage devices.
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TEM Antenna
TEM antenna is a partial discharge sensor designed to receive electromagnetic (EM) emissions from a PD occurring in the monitored asset (like MV switchgears or LV and MV induction motors fed by power electronic impulses). It is a broadband antenna with a flat response which makes TEM suitable in a number of different applications. It has been optimized to operate in a frequency range typical for PD activity and it was designed to provide maximum sensitivity and high gain. Its compact and robust design (passive sensor) makes TEM the optimal sensor for direct installation on medium voltage Switchgears and motors. It can be virtually applied in any electrical equipment provided that it has apertures or EM transparent surfaces.
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HEV & EV Power Tester
EVd-40
The EVd-40 Power Tester is a pre- and post-reconditioning tool for quality control of aftermarket HEV & EV battery production. The equipment integrates a “smart” charger (Sorensen XG 1700 or Kepco KLN 1500W) with NuVant Systems high power discharge electronics. The "power test" discharges battery packs at high power (10,000 watts), while tracking module voltages. The software monitors up to 40 module voltages at a time, identifying any weak modules. The "smart" charger performs charging constant current (CC), constant voltage (CV) and complex mixed mode constant current – constant voltage (CCCV) charging protocols at voltages up to 600 V. This enables recharge of any type of rechargeable battery.
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Self-testing Static Grounding Clamp
Bond-Rite CLAMP
In many branches of the process industries, fires and explosions can result from electrostatic discharge in hazardous areas. Even relatively small sparks have sufficient energy to ignite many flammable vapours, gases and even airborne dusts. In situations, where this risk exists, static grounding (earthing) and bonding clamps are required wherever mobile or portable conductive plant items (such as drums and vessels etc) are used.
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Battery Pack Test System
*Easy to see now test progress*Can cycle test*Provide Charge, Discharge, Suspend, FOR, LOOP Mode Select*When Charging, set the stop current to stop charging when fully charged so as to avoid overcharging that will damage the battery. When Discharge, set the stop voltage to stop discharge when discharging to lowest so as to avoid over-discharging that will damage the battery.
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Telecomunication & Electrical Insolation- Continuity-Voltage-MOV Tester(LCD Display)
1165IN
Standard Electric Works Co., Ltd
● Measures insulation (MΩ), Continuity (Ω) , AC and DC voltage● Six insulation test voltages (DCV): 50V, 100V, 125V, 250V, 500V, 1000V● 68x34 mm (2.677x1.338 inch) large LCD● Function rotary switch design for easier operation● Intuitive operation for users● User friendly interface● Auto ACV/DCV detection● Audible voltage warning● DAR/PI indication● Backlight function● Automatic circuit discharge● Test insulation at rated voltage into a 1mA load● Auto ranging● Fuse protection● EnerSave function● MOV test function
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Robotic Electric Screwdrivers
NFA-Series
Engineered for automation and robotic torque applications, the NFA-Series robotic electric screwdrivers feature a high performance brushless motor design that provide durability and reduce the common maintenance costs associated brush type electric screwdrivers. The durable automation tools deliver reliability and precision torque control at every turn. The assembly automation tools ensures accuracy with a precision automatic shut-off clutch once the preset torque is achieved in the fastening process. The NFA tools are ESD safe, ensuring less than 1 Ohm at the bit tip. ESD management in power tools ensures product quality, cost savings and a reduction in overall ESD failures. Engineers involved with microelectronic products are aware of the importance of controlling Electrostatic Discharge (ESD) failures. Lapses in preventing the occurrence of electrostatic discharge can affect production yields, manufacturing costs, product quality & reliability, reputation and profitability.
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Transformer Ratio Meters
Handheld Turns Ratio & Winding Resistance Tester TWR-H
TWR-H is a handheld, battery operated, fully automatic test set specially designed for turns ratio, phase shift, excitation current and winding resistance measurements of transformers. It can also perform demagnetization of these transformers. Transformer turns ratio is determined by applying AC voltage across high voltage winding, accurately measuring AC voltage across the corresponding unloaded transformer winding, and then displaying the ratio of these voltages. User can enter a transformer’s nameplate voltages, so that turns ratio deviation can be calculated. This feature eliminates any error otherwise caused by an operator’s manual calculation. TWR-H compares measured turns ratio with the nameplate ratio and prints out the % of error for each test. Transformer winding resistance is determined by injecting DC current through a winding, accurately measuring DC voltage across the winding, and then calculating resistance as the ratio of voltage and current. The device generates true DC ripple-free currents. Both the injection of the current and the discharge of energy from transformer magnetic circuit are automatically regulated.
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High Voltage Relays
B-1001
Air insulated types for isolating loads, tap selections, safety discharge & grounding to help meet OSHA and other safety regulations. Ratings from 1mA to 800 amps continuous, to 100,000 amps capacitor discharge. Peak 1 minute test voltages from 5kV to 300kV. Single or Multipole. Auxiliary contacts are optional on all types. Options include latching, extended life, and tungsten contacts available for high current closing. DC, 25-800Hz & air pressure actuation available. Also usable in oil or insulating gas with increased ratings.
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Primary Cable Fault Locating
Directional Impulse Detector
The Directional Impulse Detector ( D.I.D.) is a compact handheld detector used to locate primary cable faults by sensing the magnetic field generated by the current pulse from a high voltage discharge device (thumper). A meter deflection indicates the intensity of the received signal. No deflection indicates that you have walked beyond the fault or away from the cable.
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HV Spark Gaps
B-1015
*Spark gaps are enclosed in dust tight transparent enclosures with replaceable non-melting carbon spheres, up to 88kV PK.*Above 88kV, open style with hollow aluminum spheres is standard.*Applications for these units include over-voltage limiting, voltage measurement, capacitor discharge, and pulse forming.*Horizontal unit housings are removable.*Vertical unit housings are not removable.*Micrometer Vernier adjustment is standard for maximum accuracy on most models. Economy units without micrometer Vernier adjustment are available as an option.*Insulation to ground is available at standard and optional levels.*Spark gaps to 370kV, with motor operation available.
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Cable Partial Discharge (PD) Spot Testing And Locating
PrecisePD
PrecisePD is an on-line PD Spot Testing and PD location system for Cables and Switchgear with advanced signal processing, used for the detection of PD in high noise environments.
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PCIe Digital I/O Board, 64 Optically Isolated I/O Channels, 24V
APCIE-1564
32 digital inputs, 24 V, isolated16 interruptible inputs32 digital outputs, 24 V, isolated, 10 to 36 V, 500 mA/channelOptical isolation 1000 VWatchdog for resetting the outputs to "0" (when Power-On)Protection against fast transients, overvoltage, electrostatic discharge and high-frequency EMIInputs: voltage reversal, input filtersOutputs protected against short circuitOvertemperature and overvoltage protectionDiagnostic report in case of short circuits, overtemperature, voltage drop ...24 V power outputs with protection diodesShutdown logic when the external supply voltage drops below 5 V
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Partial Discharge Surveyor
PDS100
The Doble PDS100 Partial Discharge Surveyor is a radio frequency interference (RFI) surveying tool that is designed for use in a live substation.Without the need for outages, the PDS100 can detect partial discharge (PD) in just a few seconds making it an ideal tool for a condition based maintenance program.
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Battery Capacity Tester
BLU-C Series
BLU-C is the latest solution from DV Power for conducting a comprehensive battery capacity test. This universal instrument is applicable to any battery string, such as lead-acid, Li-Ion, Ni-Cd, and others, with voltages up to 800 V DC.BLU-C tester simplifies battery testing in multiple ways. The instrument provides monitoring of discharge parameters (graphically and numerically) in real-time on a 7-inch touch screen display. The instrument also enables measurement and monitoring of cell parameters (voltage/intercell voltage/temperature), which makes it a complete stand-alone discharge test system.The capacity tester is compatible with DV-B Win software. Because of that, the user can view detailed numerical and graphical presentations of key parameters, and create reports in various formats.The capacity test is performed in a user-friendly way according to battery testing standards: IEEE 450-2010, IEEE 1188-2005, IEEE 1106-2015, IEC 60896-11/22 and other.The battery tester enables setting the discharge current up to 300 A, with 0,1 A resolution. If higher currents are required, BLU-C units can be connected in parallel, or BXL additional load units can be used.The user can select one of three discharge modes: Constant current, Constant power, Constant resistance. Additionally, different battery duty cycles can be simulated using user-selectable discharge profiles.Testing can be carried out without disconnecting the battery from the equipment it supplies.
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Partial Discharge Tester (Dry Type)
Partial Discharge testing is a way of detecting voids or imperfections in insulators that would lead to overheating and breakdown under normal operating conditions. Due to the nature of the signal being measured, this test is very susceptible to electronic and RF noise and a proper corona-free properly isolated test chamber is required.
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Intelligent Battery Charger-Analyzer for Large Battery Systems
SuperMasterCharger
The SuperMasterCharger is an instrument designed to charge, trickle charge and analyze ( discharge ) Nickel-Cadmium, Sealed Lead-Acid and other types of rechargeable batteries. With its multiple modes of operation: Constant Current Charge ( dual and single rate ), Constant Current & Float Charge, Constant Current & Peak Stop Charge, Automatic Discharge ( analysis ), Resistance Discharge ( analysis ) and Full Discharge ( deep cycle ). The SuperMasterCharger can satisfy the requirements of most large ( 10 A-hr to 100 A-hr ) rechargeable battery systems. The instrument features safety interlocks to protect the operator, the charger and the battery in the event of reversed polarity connection, short circuit, open circuit ( no load ) and Over-voltage conditions. Two large LED digital meters permit the simultaneous monitoring of voltage and current, while eight indicator lights display the status of the operation.
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PDIV Tester for EV Motor
PDIV 500-T
Shanghai Dean Electrical Co., Ltd
Differing from partial discharge with high frequency pulse which produce sound and light phenomenon, the power frequency AC voltage reaches a certain threshold, can only produce instantaneous current leakage around the tested sample, it can be detected through discharge capacity (unit: PC) to evaluate partial discharge phenomena..The instrument PDIV 500-T is designed to put samples such as enameled wire, insulation paper/film, and electric motor stator in the High temperature / humidity environment chamber, applying a power frequency voltage with a programed rising speed, and prefect ground connection must be guaranteed , through the coupling capacitor as the medium, the continuous detection of discharge capacity against the voltages will create formulation between the Voltages and discharge capacities (pc), the software will find the discharge voltage threshold called PDIV.
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AC Insulation Testing
Weshine Electric Manufacturing Co., Ltd
High-voltage Dividers (High Potential Divider) are used to measure voltages and decouple partial discharges in high-voltage test systems. Depending on the specific type, they are used to measure alternating voltage (AC), direct voltage (DC), lightning impulse voltage (LI), and switching impulse voltage (SI) systems. High-voltage dividers by HIGHVOLT comply with the relevant IEC standards. The systems are available for both indoor and outdoor use.
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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.
