Resistive Load Banks
Check power source's ability to deliver a given current and voltage at unity power factors.
See Also: Load Banks, AC Load Banks, DC Load Banks, Inductive Load Banks, Reactive Load Banks
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Resistive & Capacitive AC Load Bank
RCD
RCD AC load banks are used to test the REAL working condition of UPS, rectifier, inverter and etc who are loaded by non-linear or electronic load with non-constant resistance such as computer, networking equipments and etc. Through the accurate detection of its output and power quality, users could avoid the inadequate loading capacity or cause pollution to power grid, so as to guarantee supply security. JUNXY RCD load banks leading power factor loads are created to debug power supply system parameters such as its crest factor test.
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(DCC) Resistance Bridges
Direct Current Comparator (DCC) Resistance Bridges. Unique innovations in 6622A design and modularity means users no longer have to decide what Bridge satisfies current requirements as well as future requirements. Optional modules allow for normal, high ohms, and low ohms measurements without having to purchase multiple bridges as per competitive products.
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PXI Load Resistor Module 10 Ohm to 2.56k
40-292-012
A simple solution for applications requiring a programmable load resistor with up to 15W power handling. It is able to simulate the common short circuit and open circuit conditions that can be experienced in a system due to faulty wiring or sensors.
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Contact Resistance Measurement System
CRMS
The CRMS is a system designed to allow any user to measure the resistance of each set of relay contacts associated with the relay under test. The test system consists of a CONTACT RESISTANCE MEASUREMENT UNIT (CRMU), a MULTIPLE RELAY TEST RACK, as well as an interconnect CABLE ASSEMBLY. Either DC or AC energy to pick and drop relay coils under test for all contact measurements is supplied from the CRMU and easily interfaces with the Multiple Relay Test Rack. For additional and more thorough testing of relays an external relay tester can be interfaced to the Multiple Relay Test Rack to supply energy to the relay coil. It is recommended that the UTE Relay Tester With Timer/Counter (UTE Product # 15967-00) be utilized so the operator can take full advantage of the unique features it offers
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PXI 4 Banks of 20 Channel 2 Pole MUX
40-615-022-4/20/2
High density multiplexer modules featuring a wide range of switching configurations, especially useful where a large number of small multiplexers are required. Typical applications include signal routing in ATE and data acquisition systems. Each module is factory configured into one of the configuration modes. Connections are made via a front panel 200-pin connector.
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3U VPX RL Thermal Load Simulation Module
The 3U power test module is an ideal solution for evaluating heat dissipation in a rugged conduction cooled VPX cage or chassis. This card is a thermal load in the chassis to evaluate the heat dissipation. The chassis can be monitored with temp sensing probes and or FLIR imaging. Different wattages are selected by setting dip switches. The +5 and 3.3V loads are on the top of the module. The +12V and -12V loads are on the bottom side of the module.
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Resistance Measurement
Precision resistance measurement equipment for a range of applications. Specialist units measure down to fractions of a micro-ohm with high accuracy.
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Electronical Load Board 3U CompactPCI (conduction cooled)
046-712
The 3U load boards are designed to simulate the power consumption of a single board computer and other boards on the backplane.
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Water Resistant, Stand Alone, Humidity and Temperature Data Logger
RHTemp1000IS
The new RHTemp1000IS Intrinsically Safe humidity and temperature logger is a rugged, battery powered, stand alone device which can be used to automatically record humidity and temperature. This compact, portable, easy to use device is able to measure and record up to 16,350 humidity and temperature measurements per channel.
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Digital Earth Resistance Tester, ERT-1502
Our Earth Tester is a very successful replacement of the conventional generator type hand tester. This device is most extensively used to test the earthing installation in numerous power based industries, electrical traction systems and telecommunication networks.
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Resistance Bridges - AccuBridge® Line
Measurements International Ltd.
The Resistance Ratio Bridge from Measurements International is the next generation replacement. Measurements International is pleased to release the next generation room temperature Direct Current Comparator Resistance Ratio Bridge.
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Handheld Turns Ratio & Winding Resistance Tester
TWR-H Series
Handheld TWR-H device is DV Power single-phase instrument designed for measuring transformer winding resistance and turns ratio.The instrument has two output DC sources for measuring transformer winding resistance. The first DC source can output up to 2 A DC and is used for injecting current to the transformer’s high voltage winding. The second DC source can output up to 10 A DC and is used for testing the transformer’s low voltage winding. This is especially useful when measuring winding resistance of distribution transformers. These transformers have large turns ratio and therefore a big difference between resistances of high voltage and low voltage windings. Upon the winding resistance test, it is also possible to demagnetize the transformer core. The demagnetization process is completely automatic and safe.Together with the turns ratio, the instrument also measures excitation current and phase shift. This enables detecting transformer core or winding turns failures which cannot be spotted by measuring turns ratio only. The instrument can output test voltage up to 40 V AC for this test, but it can also output a very low test voltage of 1 V AC which is necessary for turns ratio verification of the majority of current transformers.TWR-H is powered by an internal Li-Ion battery. Up to 100 tests can be performed with a fully charged battery.
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Insulation Resistance Measuring Equipment
AMIC-5010
Insulation resistance measurement - 15TΩ: * 50 - 1000 V, in 10 V steps, * 1000 - 5000 V, in 25 V steps ; Memory of 999 results and transmission to PC ; Measurement of AC and DC voltage and capacity ; Measurement of leakage current and function with digital filter ; Measurement of continuity of protection and equipotential connections ; Adjustable alarm limits
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Hardness & Scratch Resistance
Hardness can be defined as a material’s resistance to permanent deformation. In the coatings industry, hardness measurement can be used to determine the resistance of the coating to scratching from general wear and tear and also if a coating is fully cured.
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Medium-power DC Electronic Load (900W~6000W)
FT6400A Series
Shenzhen FaithTech Technology Co., Ltd.
The FT6400A series has modular design, with strong adaptability, high reliability and high maintainability. Mainly used in power electronics testing fields such as power batteries, medium and high power DC power supplies, DC generators, etc. The FT6400A electronic load not only provides OCP, OVP, OPP, OTP, RVP but also provides Von and Voff functions and programmable protection functions for the device under test. These features can greatly improve the reliability of the product, and it is a reliable product for engineering test and automatic test system integration.
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Three-Phase Transformer Winding Resistance Meters
TWA Advanced Series
TWA Advanced series is the latest DV Power solution for three-phase transformer winding resistance measurement and tap changer analysis. They are capable of testing six transformer windings with a single cable connection, as well as three-phase automatic transformer demagnetization. It has the option of the automated test mode, where the instrument operates the tap changer without operator input (minimizing the risk of human error) and records winding resistance results based on pre-selected stabilization criteria.The unique DVtest method of tap changer analysis 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, together with the measurement of tap changer motor current which detects 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 simultaneously on three phases. It can also be performed together with the winding resistance test in all tap positions.A unique advantage of TWA Advanced instruments 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 speed up the testing– for example, it enables the operator to perform 33 measurements instead of 99 on a tap changer with 33 tap positions.TWA500 is equipped with a large 10.1” graphical touch-screen display, while TWA400 has a 7” graphical touch-screen display. Besides making the interface much more user-friendly compared to older winding ohmmeters, it also enables certain test options that were previously available only with DV-Win software. The most important among them are DVtest, tap changer motor current measurement, “Heat Run” test, test templates, and automatic test mode.
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Dry Dielectric RF Coaxial Loads
4000 Series
These 50-Ohm RF Load Resistors are light weight, dry coaxial loads that can be used in any position. All power ratings are for continuous operation. However, data is available for special applications and pulsed power conditions. Any of our Quick Match connectors can be used on these loads. Should you desire a connector other than the one included, it should be specified when ordering.
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Programmable DC Load Current Waveform Generator
9923
9923 application software can be used to edit arbitrary waveform, providing electronic load simulation different sink current conditions
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LED Load Simulator
63110A/ 63113A/63115A
As shown on the V-I curve in figure 1, the LED has a forward voltage VF and a operating resistance (Rd). When using a resistor as loading, the V-I curve of the resistor is not able to simulate the V-I curve of the LED as shown in blue on figure 1. This may cause the LED driver to not start up due to the difference in V-I characteristic between the resistors and the LEDs. When using Electronic Loads, the CR and CV mode settings are set for when the LED is under stable operation and therefore, is unable to simulate turn on or PWM brightness control characteristics. This may cause the LED driver to function improperly or trigger it’s protection circuits. These testing requirements can be achieved when using a LEDs as a load; however, issues regarding the LED aging as well as different LED drivers may require different types of LEDs or a number of LEDs. This makes it inconvenient for mass production testing.
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High Power DC Electronic Load（1250V）
36300E Series（50KW/60KW）
36300E Series has its own control and display panel, CC / CR / CV / CP / Dynamic modes, 150 sets Store / Recall memory which provides load set-up more efficiently, also can be remote controlled via GPIB、RS232、USB and LAN interface.SHORT time setting and SHORT_VH, SHORT_VL setting function, also can measure Short Voltage and Current.
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Contact Resistance Meter
4.5 Digits LED display Range : 0 TO 1999.9 W to 199.99mW High Measurement Current : 100A DC max. True Four wire resistance measuring technique eliminates lead resistance errors inherent in 2 wire systems. Fully protected against overloads. Proven design
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Power Cell Power Transducers for Wide Ranging AC/DC Loads
PH-3A and PH-1000
You can know the load on an electric motor by measuring the electric current going to the motor (Amps). But, this is not the best way to do it since a lightly-loaded motor doesn't use the electricity very efficiently. (In technical terms, the power factor is low.)A better way to know the load is to measure the motor power. (Power is measured in Horsepower or Watts.) Motor power gives you a straight line so it works well even when the motor is lightly loaded.The Power Sensors that we make measure the motor load (Horsepower or Watts) and send a signal to meters or computers. The operator can see what the status is on the meter or, the computer can make decisions.
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Load Cells
A load cell is a sensor which transforms the load or force applied to it into an electrical signal. Load cell sensors are based on the strain-gauge principle i.e. a sensor whose resistance varies with applied force. They are the most widely used as load transducers in all areas of weight measurement from retail scales, the process industry and medical applications.
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PXI MUX 1 Bank of 128 Channel 1 Pole
40-610-022-1/128/1
This series of high density multiplexer modules feature a wide range of switching configurations, especially useful where a large number of small multiplexers are required. Typical applications include signal routing in ATE and data acquisition systems. Connections are made via a front panel 200-pin connector. Inter-bank linking relays allow multiplexer size to be increased in multiples of in multiples of three by joining the common terminals of adjacent banks. Closing one linking switch produces a 6-channel multiplexer, closing all linking switches produces an 54-channel multiplexer
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Load Banks
Power Test Dynamometer offers a complete high capacity load testing solution with our load bank and gen set testing systems. Capable of testing generators and AC/DC power sources, our load bank systems safely apply electrical loads across the entire spectrum of operation. By offering a one-stop-shop for your Load Bank and it's accompanying data acquisition software, Power Test is committed to Making Your Testing Easy.
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Programmable 70W Electronic Load
MightyWatt R3
The All-New MightyWatt revision 3 turns your Arduino Uno R3 or Arduino Zero (M0/M0 Pro) into an electronic load capable of dissipating 70 Watts in a very small form factor. Ideal for testing power supplies, batteries, solar cells, fuel cells or power amplifiers. MightyWatt R3 has a research-grade electronics and is aimed not only at hobbyists but also at professionals.
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External Load Expansion Connector Accessory for USBHub3c
Used for connecting external electronic loads to the USBHub3c for VBUS load testing. It features separate screw terminals for VBUS passthrough from each USB Type-C port (0 through 5). While this board provides a physical wiring interface to access each VBUS channel, the USBHub3c External Load Feature is required to enable VBUS outputs on the USBHub3c.
