Showing results: 166 - 180 of 2632 items found.
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Handheld Turns Ratio & Winding Resistance Tester TWR-H -
Amperis sl
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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PA30Bi-H -
Ponovo Power Co., Ltd.
PA30Bi-H is the panel-mounted type power amplifier model which can produce 3-phase current, with maximum RMS phase current of 30A and maximum output power of 450VA, and 4-phase voltage, with maximum RMS phase voltage of 250V and maximum output power of 75VA.
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MCL-400IR+ -
MULTI MEASURING INSTRUMENTS Co., Ltd.
・About Ior Leakage CurrentRecently, the leakage current clamp meter is widely used for insulation control of low voltage circuit as the supplementary method of the insulation resistance measurement. The control of leakage current has the advantages to enable the prediction of insulation condition in the electrical power line without having to shut off the power. The leakage current (Io) includes the capacitive leakage current (Ioc)originated in the capacitance and the resistive leakage current (Ior) originated in the insulation resistance each related to the ground. It is considered that the measurement of resistive leakage current (Ior) is the very useful and effective method for the insulation control of low voltage circuit. However, it was difficult to measure the resistive leakage current (Ior)with traditional leakage current clamp meter. MCL-400IR new digital clamp tester enabled the measurements of the resistive leakage current (Ior)without voltage input(phase detection).
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INA169 -
SparkFun Electronics
The INA169 is a “high-side current monitor,” which means that you place a resistor (a “shunt resistor”) on the positive power rail and the INA169 measures the voltage drop across that resistor. The INA169 outputs a small current based on the measured voltage drop. If you place a resistor from the output of the INA169 to ground, you can measure the voltage at the output.
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Analog Devices Inc.
Analog Devices offers a broad line precision micropower voltage references with extremely low quiescent currents (series references) or minimum shunt currents (shunt voltage references). All of our precision voltage references offer excellent initial accuracy and low temperature drift over time and temperature. Our Reference Plus products combine precision voltage references with comparators or amplifiers.
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CAEN S.p.A.
- From 12 to 48 independently controllable High Voltage channels- 0 ÷ 3.5 kV output voltage- Maximum Current 3.5 mA- Either Radiall Multipin or SHV connectors- Available with either positive or negative polarity- Up to 10 nA / 500 pA current set / monitor resolution- Up to 5 mV voltage set / monitor resolution- Very Low ripple, down to < 5 mVpp- 2 different channel grounding - Common Ground (AGxxxx) - Common Floating Return (Axxxx)- Independently programmable for each channel: - Output voltage - Current limit - Ramp up/down - TRIP parameter- Current generator operation in over current condition- Specific design for High Altitudes 0÷5000 m (A7030 only)
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Ajinkya Electronic Systems
Besides from physical parameters; application also demands logging of voltages and currents. The IM2000 series Voltage Logger / Current Logger / Power Logger offered by us can accept DC shunt inputs, signals from convertors 4-20mA range or CT current inputs for higher AC currents or AC signals from PT. These can calculate values from the recorded channels to generate additional channel values.
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Precision Analog Systems Co.
Precision Analog Systems signal conditioning output amplifiers can increase the voltage output drive to +/- 200 Volts at 12 mAmps. Our high current amplifier cards provide 24 Volt output signals with 500 mAmps of output current. PAS offers boards that provide various combinations of output voltage and output current drive capability. Please see below for our current product list.
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MEWOI Electronics Co.,ltd
Power quality analyzer is a product carefully developed by our company and specially designed for field test of three phases, multi-functional and intelligent, man-machine operation and concise and comprehensive test instrument. It is easy to use, large LCD screen display, high resolution, interface in both Chinese and English, shock-proof shell structure and so on. Can simultaneously measure the 4-channel current (ABC three phase and neutral wire current), 4-channel voltage (ABC three-phase voltage and neutral line voltage to ground), the peak value of current voltage, maximum/minimum value over a period, three-phase imbalance factor, short-time voltage flicker, transformer K factor, active power, reactive power, apparent power, power factor and displacement power factor, active power, reactive power, apparent power, total harmonic distortion and harmonic, etc; Display real-time waveform, harmonic ratio bar charts of current voltage; Dynamically capture instantaneous change of voltage current, monitoring starting current, monitoring the power parameters and generate the alarm list, generate the trend chart for a long time record test data.
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72-6130 -
Tenma
A clamp-on type test meter with AC/DC voltage and AC current measurement.
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Supracon AG
Our current sensors were designed for a simple, customer-specific construction of niobium wire wound magnetometers, gradiometers or preamplifiers for small current or voltage signals.