Showing results: 2836 - 2850 of 5270 items found.
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880 AT -
Standard Electric Works Co., Ltd
● The 880 AT is a simplified Version of an appliance tester which use low voltage and low current to perform it's checks.● Application Example The appliance is plugged into the mini appliance checker, then the probe make contact with the protective conductor.● Other appliance checking Washing Machine Toaster Iron Dish Washer Stove
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DB62X Series -
Danbridge a/s
The Danbridge Megohmmeter program is designed for fast measurement of leakage currents and insulation resistance (IR) of various components, cables, materials, etc. The fast and powerful measurement cycles, the high accuracy, and the broad measurement range make the Danbridge Megohmmeters to one of the most versatile insulation measurement instruments on the market today.
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Teledyne e2v
Spark gaps are high-energy, voltage-controlled switching devices that are unique in their ability to repeatedly switch currents of thousands of amperes.They are commonly used as protection where high-energy transient electrical surges are anticipated, such as voltage protection, lightning protection and crowbar circuits. They are also used to power the lithotripters used to treat kidney stones.
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DEM60C -
IBEKO Power AB
After a DC current test, such as winding resistance measurement, the magnetic core of a power or instrument transformer may be magnetized (remnant magnetism). It can cause various problems such as wrong diagnostics, inaccurate measurements on a transformer, inrush current at the start-up of a power transformer, or incorrect operation of protective relays due to magnetized CT cores. The best way to eliminate this source of potential problems is to use demagnetizer on the power or instrument transformer.The DEM60C is a fully automatic test instrument which performs three-phase transformer demagnetization. Transformer magnetic core demagnetization requires the application of AC current with magnitude decreasing to zero. DEM60C provides this AC current by internally changing the polarity of a controlled DC current. During the demagnetization process, the instrument supplies the current at decreasing magnitude for each step, following a proprietary algorithm. It can demagnetize single-phase and three-phase power transformers.The instrument can be connected to all three phases of a power transformer to be demagnetized, on either the primary or the secondary side. If a user selects specific vector diagrams for different types of transformers, DEM60C will run a specific demagnetization procedure for each transformer type (i.e., single phase, delta, wye/star, zig-zag.) without switching the test leads.DEM60C enables safe and efficient power transformer demagnetization. The instrument automatically regulates the injection of current and discharging energy from the inductance. During and after the operation, an intrinsically safe discharge circuit with an indicator rapidly dissipates the stored magnetic energy. The discharging circuit is independent of the power supply, which improves its reliability in case of loss of power.Test currents of up to 60 A DC enable efficient demagnetization of even the largest power transformers. Using a DV Win software, it is possible to control DEM60C externally.
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Applied Meters, a.s.
Three-phase static electricity meters AMT B1x-S(D)xxTE are determined for single-rate or double-rate active energy measurement in direct and indirect connection, displaying results on mechanical register with stepping motor. In the case of CT (current transformer) operated meters (x/5A) it is necessary value of register to multiply by the current transformer ratio.
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STATOGRAPH® Product Family -
Foerster Instruments, Incorporated
The STATOGRAPH product family is used for testing surface cracks with the help of eddy current sensors. Eddy current testing for material cracks requires the appropriate evaluation electronics and probes adapted to the testing task. Depending on the test situation and test object, the STATOGRAPH family of test instruments offers the right system for this purpose.
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ST-1520 -
MRC ltd.
Capable of measuring earth voltage.2mA measuring current permits the testing of earth resistance without tripping earth leakage current circuit breakers in the circuit.Auto power off function.The timer operates automatically for approximately three to five minutes when the "push button switch" and "timer on button" are pressed together.
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LM Series -
Koyo Electronics Industries co., ltd
Models in LM-2100 series equipped with LCR meter are designed to measure inductance and dissipation factor of the coil to which DC current is superimposed. Special circuit is built in to protect the LCR meter from surge voltage. Applied current can be step by step in the remote mode. Voltage application is impossible with the safety cover open.
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Weshine Electric Manufacturing Co., Ltd
After a DC current test, such as winding resistance measurement, the magnetic core of a power or instrument transformer may be magnetized (remnant magnetism). It can cause various problems such as wrong diagnostics, inaccurate measurements on a transformer, inrush current at the start-up of a power transformer, or incorrect operation of protective relays due to magnetized CT cores.
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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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MPI-502 -
Sonel S.A.
Short circuit loop parameters measurements:measurements of short circuit loop impedance in networks with rated voltage: 220/380 V, *230 V/400 V, 240/415 V and frequency 45...65 Hz,*measurements of short circuit loop impedance with current 15 mA without tripping the circuit breaker.Testing the RCD breakers of AC, A types:*testing of prompt, short-delay (general) and selective RCDs for the rated current values 10, 30, 100, 300, 500 mA,*IA measurement*RE and UB measurement without tripping the circuit breaker,*extended RCD test function AUTO, with measurement of ZL-PE with current 15 mA - measurement of IA and tA during one RCD tripping.Detection of the replacement L and N in the socket and automatic conversion in the meter.Low voltage resistance measurements of protective circuits and junctions:*measurement of resistance with ±200 mA current*calibration of test leads - possibility of using any length of test leads,*low current resistance measurement with accoustic signalling
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APS51 Series -
Twintex Electronics Co., Ltd
★ Full range adjustable output: Low 1-150V, High 150.1~300V, resolution 0.1V★ Output frequency: 45-250Hz★ Fast output key for 110V/220V and 50Hz/60Hz★ Panel lock function★ 3 sets memories for voltage and frequency settings★ Unlimited rotary knob for voltage and frequency adjustment, minimum step 0.001★ Strong overload capacity, overload 300% within 2s★ Withstand transient current 1.5 times of rated current within 0.1s★ Response time less than 20ms for 100% load and unload★ 5 digits high accuracy LED display for voltage, current, frequency, active power, power factor★ With soft-start function, set voltage rise time (0~99.999s), avoid damage by surge current during load start-up★ Over load, over current, over temperature and short circuit protections★ RS232 interface
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8100 C -
Kusam Electrical Industries Limited
INPUT :• Input Voltage Range :Voltage: 55 ~ 300V AC, or 300 ~ 600V AC, 45 ~ 65Hz.P.T. Ratio Programmable upto 9999 / KV.• Input Voltage Over Range :Voltage : 200 % Continuous, 300 % of rating for 10 sec.• Input Current Range :Current : 110 % of rating. 0-1A or 0 - 5AC.T. Ratio programmable upto 9999 / 5A.Input Current Over Range:Current : 400 % Continuous, 2000 % of rating for 10 Sec.• Input Frequency : 45 Hz ~ 70 Hz.• Input Burden :Voltage 0.25 VA / Unit, Current 0.25VA / Unit, at 50 / 60HzOUTPUTDC Current: 0 20 m A DCLoad resistance drive: output drive 10 V DC maximum.DC Voltage: 0 -10 V DCLoad resistance drive: output drive 5mA maximumOutput Protection: No damage even if output is Open or Short Circuit.Output Response Time : £ 1 Sec.Digital Output : RS485 Output, Isolate Type with MODBUS RTU mode., 4800, 9600,19200Baud Rate, User Selectable.
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PPX -
CKD Corporation
30mm compact 2-screen/3-color display pressure sensor.It is a digital pressure sensor packed with ease of use and high functionality such as a dual screen display that allows you to check the (current value) and (set value) of pressure at the same time, a three-color display, a setting content copy function, and three mode settings.
