Voltage Drop
electrical energy given up flowing through a circuit.
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Product
Electrical Safety Test Equipment
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Making a product “safe” requires an understanding of “hazards” that exist in each electrical product. Electrical shock is one of the four fundamental hazards. Because of that, it must be a part of any product electrical safety evaluation. Even though a product requires an electrical power source and uses electrical or electronic components, it should not present an electrical shock hazard to the user.Ground bond or earth continuity testing prevents electrical shock hazards. Similarly to a fault to earth, test instruments generate a high current. The standard requires that the resistance between protective earth and any conductive surface on the equipment does not exceed 0,1 Ohm. The test is performed by applying a DC current between the conductive surface and protective earth. By measuring the voltage drop, it calculates the resistance.RMO-E instruments are ideal for testing the protective bonding (grounding) of equipment following the standard IEC 61010-1. Applying current up to the value of 100 A and the ability to provide in the Contin menu (continuous operation) test current for the pre-set test duration (equal or exceeding 1 min) gives a user a possibility to easily check the protective bonding/grounding of the equipment. The full load voltage of 12 V assures proper measurement and accurate result. Finally, an instrument displays pass/fail classification according to user-preset parameters.
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Product
Mobile Comm DC Source w/ Battery Emulation, DVM
66321D
Battery Simulator
The Keysight Mobile Communications DC Source 663xx series offers several features ideal for testing wireless and battery powered devices. Excellent voltage transient response ensures maximum test-system throughput by minimizing device shutdowns due to significant voltage drops in the test wiring. Built-in advanced measurement system to accurately measure battery current drains when the device operates in different modes and a Keysight-developed feature that enables cellular telephone manufacturers to detect permanently and intermittently open-sense wire connections.The Keysight 66321D mobile communications dc source provides fast transient response, exceptional sourcing, output resistance programming, and precision measurement. This product is specially designed for testing next generation digital wireless communications products. The 66321D mobile communications dc source offers a new capability that simulates the internal resistance of a battery or battery pack. Additionally, these high performance models offer improved transient response and stable output operation with either short or long load leads. The 66321D dc source provides all of the capabilities of the 66321B with the addition of a built-in digital voltmeter.
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Product
Digital Multimeters
ST-3501
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Standard Electric Works Co., Ltd
● Display: 3½ digit liquid crystal display (LCD) with max. reading of 1999.● Polarity: Automatic, (-) negative polarity indication.● Zero Adjustment: Automatic.● Over Range Indication: Highest digit of (1) or (-1) is displayed.● Low Battery Indication: The (BAT) is displayed when the battery voltage drops below the operating voltage.● Measurement Rate: 3 measurements per second, nominal.● Operating Temperature: 0°C to ±50°C, 0-70% RH.● Storage Temperature: -20°C to +60°C, 0-80% RH, with battery removed.● Accuracy: Accuracy specifications at 23±5°C, less than 75% RH.● Power: Single, 006P 9 volt battery● Dimensions: 128(L)×72(W)×33(D)mm.● Weight: Approx .200g
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Product
Air Core Electric Arc Furnace Reactors
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Arc Furnace Reactors are serially connected reactors that are installed in the supply systems of arc furnace transformers to stabilize arc and limit the unstable arc furnace current and voltage drop which optimize their melting process. These buffer reactors are connected in series to the primary side of the furnace transformer. Typically these reactors are tapped coils and manufactured as per customer'stap requirements.
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Product
Ground Grid Tester
GGT Series
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The GGT500 ground grid integrity tester is designed for inspection of the substation ground grid. It can also be used as a portable micro-ohmmeter with Both Sides Grounded and Remote Control functionalities. It is intended to inspection the conditions of a grounding system beneath substations, testing of medium- and high-voltage circuit breakers, disconnecting switches, high-current bus bar joints, cable splices, and different high-current links.In the United States when inspecting the quality of the grounding systems beneath a substation, the proper procedure is to inject 300 A DC during a time period of 60 s. This is what the GGT500 will do, and in that time period, the current path and voltage drop are checked. Also acting as a micro-ohmmeter, the GGT500 can test low resistance values by producing high test currents of up to 500 A.The instrument is placed in an unbreakable, plastic case with IP67 protective rating (with closed lid). Although very portable and lightweight, micro-ohmmeters have very high output power capabilities. High output voltage enables a wider measurement range at higher test currents, as well as the use of thinner/longer test cables. GGT500 ground grid integrity tester generates a true DC ripple-free (less than 1 % ripple) current with automatically regulated test ramps. This significantly decreases magnetic transients and ensures great accuracy.When used for testing in Both Sides Grounded conditions, a special current clamp powered from the ground grid integrity tester is used for measuring a current through groundings. If even a higher safety level is required, the remote control feature enables the operator to perform measurements from a distant location, away from the instrument and test object.
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Product
Mobile Communications DC Source, 15V, 3A
66311B
Battery Simulator
The Keysight Mobile Communications DC Source 663xx series offers several features ideal for testing wireless and battery powered devices. Excellent voltage transient response ensures maximum test-system throughput by minimizing device shutdowns due to significant voltage drops in the test wiring. Built-in advanced measurement system to accurately measure battery current drains when the device operates in different modes and a Keysight-developed feature that enables cellular telephone manufacturers to detect permanently and intermittently open-sense wire connections.The Keysight 66311B mobile communications DC source provides fast transient, exceptional sourcing, and precision measurement.
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Product
PCIe Digital I/O Board, 64 Optically Isolated I/O Channels, 5V-HS
APCIE-1564-5V-HS
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32 digital inputs, 5 V, isolated16 interruptible inputs32 digital outputs, 5 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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Product
Thermocouple Thermometers
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Polarity: Automatic, positive implied, negative polarityindication.Low battery indication: The “ ” is displayed when thebattery voltage drops below the operating level.Measurement rate: 1 times/second.Operating environment: 0°C to 50°C at<70% R.H.Storage temperature: -20°C to 60°C, 0 to 80% R.H. withbattery removed from meter.Accuracy: Stated accuracy at 23°C±5°C, <75% R.H.Battery: 1.5Vx4pcs AAA size.Dimensions: 160mm(H) x 83mm(W) x 38mm(D).Weight: approx. 270g including batteries.
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Product
Contact Resistance Tester
JYL
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As a high current passes through a pair of mechanically independent metallic contacts, the contact resistance must be as low as possible. Increasing the contact resistance of the contact often causes a large voltage drop on the contact, which reduces the input power of the load equipment. If the contact resistance of one or two contacts becomes large, the three-phase voltage of the load equipment will be unbalanced, causing phase loss operation.
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Product
Linear regulated power supply with thyristor pre-regulation
NTN
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High efficiency Short circuit proof and unlimited operation with full current in short circuit condition voltage and current regulation with automatic and sharp transition; control mode indicated by LEDs Voltage and current setting with 10-turn potentiometers with precision scale; the adjusting knob can be locked 4 digit DVM for voltage and current (for table-top models) Sense terminals for the compensation of voltage drop on the load lines. The nominal voltage always refers to the output terminals Parallel and series connection possible Suitable for inductive and capacitive loads for 700 W nominal power and higher, limitation of inrush current on switching on Interlock loop to monitor the external load and internal loop as a standard for three phase units Elapsed-hour meter as a standard for three phase units
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Product
Field Effect Rectifiers
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ST field-effect rectifier diodes (FERD) help improve designs with new versions focusing on trade-off upgrades. Field-effect rectifier diodes belong to our STPOWER family. The design of the FERDs has allowed both a decrease in the voltage drop and a decrease in the leakage current temperature coefficient. As a result, the runaway safety margin is improved and maybe beyond the typical safety margin of Schottky barrier diodes.
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Product
Infrared Thermometer
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Display: 3 1/2 digit liquid crystal display (LCD) with amaximum reading of 1999.Polarity: Automatic, positive implied, negative polarityindication.Low battery indication: the " " is displayed when thebattery voltage drops below the operating level.Operating environment: 0°C to 50°C at<75% relativehumidity.Storage temperature: -20°C to 60°C, 0 to 80% R.H.withbattery removed from meter.Accuracy: Stated accuracy at 23°C±5°C, <75% relativehumidity.Auto power off : 10 secondsDimensions: 148mm(H) x 105mm(W) x 42mm(D).
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Product
6-24V Multi-functional Auto Tester With LED Display
6510A
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Peaceful Thriving Enterprise Co Ltd
Test the automotive electrical system within 6-24V. In order to save the testing hours for the automotive electrical system, the tester is designed to test the system without re-connection between the vehicle battery and the testing components. For the testing and safety purpose, the tester contains short-circuit protection, which can also check the ground connection without voltage drop test. The short-circuit protection system contains the recoverable fuse, so the technician will not waste the fuses during the testing. The extension cable is long enough for a technician to test the whole system for the vehicle. Therefore, the technicians do not have to search for ground connection constantly.
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Product
Primary & Secondary Current Injection Testing Sets
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Primary current injection kits are used to test and commission Circuit Breakers, Bus Bars, CTs, Relays, MCCs, PCCs etc. These are also used for high current injection and simultaneously measuring voltage drops and hot spots in bus-bar joints, Circuit Breaker Contacts etc.
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Product
Electric Testing
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Our Capabilities*Dielectric Withstand*Hi-Potential Testing*Voltage Drop*Contact Resistance*Gate Leakage*Insulation Integrity*Dielectric Integrity
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Product
Communication and Control Cable
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Teledyne Marine Cable Solutions
TCS provides large gauge for long runs and low voltage drop, with a high strand count for continuous flex. Low capacity, low-skew, shielded and ROHS compliant.
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Product
Voltage Sag Generator
SKS-1132GTB
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Shanghai Sanki Electronic Industries Co., Ltd.
The cycle drop simulator is used to reproduce the voltage fluctuation phenomenon of commercial power supplies. Simulate the grid voltage drop and short-term interruption caused by the accident or the sudden change of the large load in the low-voltage power grid, or the grid voltage change caused by the continuous change of the load. Used to evaluate the performance of the equipment under these voltage changes.
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Product
Voltage Sag Generator
SKS-1120GTB
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Shanghai Sanki Electronic Industries Co., Ltd.
The cycle drop simulator is used to reproduce the voltage fluctuation phenomenon of commercial power supplies. Simulate the grid voltage drop and short-term interruption caused by the accident or the sudden change of the large load in the low-voltage power grid, or the grid voltage change caused by the continuous change of the load. Used to evaluate the performance of the equipment under these voltage changes.
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Product
Voltage Sag Generator
SKS-1120GTA
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Shanghai Sanki Electronic Industries Co., Ltd.
The cycle drop simulator is used to reproduce the voltage fluctuation phenomenon of commercial power supplies. Simulate the grid voltage drop and short-term interruption caused by the accident or the sudden change of the large load in the low-voltage power grid, or the grid voltage change caused by the continuous change of the load. Used to evaluate the performance of the equipment under these voltage changes.
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Product
SureTest® Circuit Analyzer
61-164
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*Measures voltage drop under load**Hot and neutral conductor impedances*Estimates Load on Line (ELL) up to 15A*Tests GFCIs and EPDs for proper operation*Super-bright OLED display*High accuracies*True RMS*Line and peak voltage*Identifies proper wiring in 3-wire receptacles*Identifies false (bootleg) grounds*Tests without disturbing sensitive loads*Verifies isolated grounds (with 61-176 adapter)*2-year warranty*12A, 15A, 20A load tests
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Product
PCIe Digital I/O Board, 64 Optically Isolated I/O Channels, 5V
APCIE-1564-5V
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32 digital inputs, 5 V, isolated16 interruptible inputs32 digital outputs, 5 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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Product
Motorcycle Battery Testers
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ELAK Motor-Cycle Battery Testers are designed for testing batteries used in motor-cycles, scooters, ATV''s, etc. These testers check the voltage drop of the battery under a fixed load and confirm the status of the battery full, weak or dead. The new generation motor-cycle and scooters are fitted with an electrical start. It is therefore very essential to test these batteries under load, to ensure that the batteries are capable of starting the vehicle.
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Product
12-24V Multi-functional Auto Tester With LCD Display
6511
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Peaceful Thriving Enterprise Co Ltd
Test the automotive electrical system within 12-24V. In order to save the testing hours for the automotive electrical system, the tester is designed to test the system without re-connection between the vehicle battery and the testing components. For the testing and safety purpose, the tester contains short-circuit protection, which can also check the ground connection without voltage drop test. The short-circuit protection system contains the recoverable fuse, so the technician will not waste the fuses during the testing. The extension cable is long enough for a technician to test the whole system for the vehicle. Therefore, the technicians do not have to search for ground connection constantly.
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Product
Cycle Voltage Drop (Rise) Simulator
STT-CSS-20P1
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Beijing KeHuan Century EMC Technology Co,.LTD
*Using 2 The regulator, and the rated voltage adjustable automatic voltage regulator, power fluctuations avoid adversely affecting the test results. Simulate the test under 110V power supply. It can simulate the fluctuation of the power grid under extreme conditions (such as high or low power supply voltage in remote areas).
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Product
Battery Backup Unit
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Advantech’s Battery Backup Unit provides up to 6 minutes of power to protect data and ensure system uptime during outages or voltage drops.
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Product
Loop-Powered Digital Panel Meter
88-PRO
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The 88-PRO Process Meter may be connected directly to a 4-20 mA, 10-50 mA or 1-5 mA current loop, with no need for additional power to the meter. This is because the meter is powered directly by the current loop, developing a maximum voltage drop of 2.5 V.
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Product
LOADpro Dynamic Test Leads
180
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*LOADpro Test Leads load the circuit to see if current can flow. *By loading the circuit, LOADpro makes a voltage drop test “on the fly”. *Just press the switch – the test results can not lie. *Use LOADpro w/your DMM and follow our test method - you will find wiring faults quicker. *LOADpro Test Leads feature SteadyPin Probe Tips, which allows the probe to sit firmly on a male ECM or connector pin. *LOADpro are OEM approved – finds corroded circuits fast!
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Product
RTD Thermometers
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Automatic, positive implied, negative polarityindication.Low battery indication: The “ ” is displayed when thebattery voltage drops below the operating level.Measurement rate: 1 times/second.Operating environment: 0°C to 50°C at<70% R.H.Storage temperature: -20°C to 60°C, 0 to 80% R.H. withbattery removed from meter.Accuracy: Stated accuracy at 23°C±5°C, <75% R.H.Battery: 1.5Vx4pcs AAA size.Dimensions: 160mm(H) x 83mm(W) x 38mm(D).Weight: approx. 255g including batteries.
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Product
DC Filter Inductors
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Osborne DC filter inductors (aka filter chokes) are commonly used in AC to DC conversion circuits to present an inductive voltage drop to the AC component of rectified current. This inductive voltage drop acts as a filter. Osborne designs filter inductors to components to function effectively (without saturation) in the presence of the DC current. Osborne will work with you to mitigate the impact of ripple frequency in conversion circuits. Every Osborne DC filter choke is designed for high performance with special consideration given to your circuit´s power supply frequency and conversion configuration.
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Product
Current Measurement Board
MS 1814
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*Maximum DC Voltage Rating: 15V to 75V*Maximum DC Current: 5A*Output Voltage per 1A: 1V*Maximum AC Current: 5A*Operating Temperature: 0°C to 55°C*Storage Temperature: -20°C to +65°C*90% Relative Humidity (Non-condensing)*No. of DC Current Channels: 9*No. of AC Current Channels: 4nos*Maximum AC Voltage Rating: 230VAC*Channel Selection: Through 16 CH Analog MUX*Measurement Error Over Full Temperature Range: 5%*Type of Output: Proportional voltages*Maximum Voltage Drop across Series Resistor Full Scale Measurement: 0.05VDC
