Overview The digital three-phase shifter is a portable electrical tester composed of transformer phase shifter, digital phase display, voltage current digital display, output voltage adjustment, coarse adjustment, fine adjustment, and power supply, etc. The digital three-phase shifter combines the transformer phase phase technology with digital measurement techniques, which can be adjusted at any angle in the range of 0 to 360 , which has high precision, reading. Accurate intuitive, the voltage output is adjustable, the digital three-phase shifter structural components use independent fixtures, firm and reliable, full seals, easy to carry in the field and on-site use. Technical parameter Input voltage Three-phase four-wire 3 380 (220) V 50Hz The output voltage Three-phase four-wire 3 (0 380) / (0 220) Triple semi-digital display, accuracy: level 1 Output current Communication 0 ~ 20A Triple semi-digital display, accuracy: level 1 Maximum output capacity 3 300VA Three-phase coarse Ambient temperature: 0 360 Move 30 per step
Product Introduction SF6 intelligent micro water quality tester is developed and designed according to the national power industry standard DL t506 2007 insulation gas humidity measurement method for sulfur hexafluoride electrical equipment and adopts the imported high precision dew point sensor and new digital circuit control technology. It is a high-precision intelligent instrument to measure the trace moisture content in SF6 gas. This instrument adopts intelligent self calibration technology wide measurement range fast response high accuracy good linearity dynamic display of measurement curve. At the same time the instrument also has an automatic dryer which can greatly reduce the measurement time. Technical Parameters Measuring range Dew point value 80 20 Moisture content 0 19999uLL Accuracy of measurement 0.5 60 20 1.0 80 60 The resolution of the Dew point value 0.1 Moisture content 1uLL Response time 20 0.1mpa 63 needs 5s 90 needs 45s 60 20 63 needs 10s 90 needs 240s 20 60 Sampling flow 0.6L min 20 Pressure range 01.0Mpa The use of temperature 20 60 Environmental humidity 0 100 RH Storage temperature 20 80 Charging time 4 hours The whole machine size 250 150 300mm3 The weight of The machine 3.5kg
OVERVIEW Many power systems, railway systems, large-scale petrochemical plants and enterprises have a lot of electrical equipment whose internal insulation are mostly oil filled insulation type, and therefore, test on insulating oil dielectric strength is common and necessary. To meet the needs of the market, we have developed and produced a series of insulating oil dielectric strength testers according to national standard GB T507-2002, industry standard DL429.9 91 and the latest Electric Power Industry Standard DL T846.7-2004 by ourselves. This instrument, by using a single chip microcomputer as the core, can operate in full automation with high accuracy, greatly improving work efficiency and reducing the labor intensity of workers. Moreover, it is small in size and convenient to carry. MAJOR TECHNICAL INDICATORS Output voltage 0 100KV optional Voltage distortion rate 3 Voltage raising speed 0.5 5 KVS adjustable Standing time 15min adjustable Boosting interval 5 min adjustable Boosting frequency 1 9 time s optional Booster capacity 1.5KVA Measuring accuracy 3 Supply voltage AC220V 10 50Hz1 Hz Power 200W Applicable temperature 0 45 Applicable humidity 75 RH Overall dimension 465 385 425 Transformer Oil Dielectric Strength Tester 2
Product description Insulating boots and gloves withstand voltage device is a power frequency power supply with low voltage working voltage of 220V 50Hz for insulating boots and gloves. According to the principle of electromagnetic induction, the input voltage is changed to the minimum value required for the test. high pressure. Insulating boots gloves withstand voltage test device generally consists of a special dedicated test box, an intelligent power frequency withstand voltage console, and a power frequency withstand voltage test transformer. A special water tank can be customized according to needs to test 68 insulated boots or 6 insulated gloves at a time, and display the leakage current of the insulated boots or insulated gloves at the same time. The intelligent power frequency withstand voltage console is equipped with overcurrent protection and zero protection. Time protection and alarm function. The preventive voltage resistance test device for insulating boots and gloves is a special product developed and produced according to the needs of users according to the test procedures of insulating boots gloves
Product description The metal oxide arrester tester is used for the measurement and analysis of metal oxide arrester MOA leakage. It is mainly used for measuring the resistive current to analyze the degree of zinc oxide aging and damp. The field charged test shall conform to Electric Power Industry Standard of the People's DL474.5-92 Guide for Insulation Test on Site - Lightning Arrester Tests. The metal oxide arrester tester can be also used for factory and acceptance tests. Zinc oxide arrester tester Technical Indexes Range of reference voltage input peak 10V-200V Measurement range of full leakage current peak 100uA 10mA Measurement range of resistive current peak 100uA 10mA Measurement range of capacitive current peak 100uA 10mA Measurement range of angle 0-90 Power consumption 4W System measurement accuracy reading 5 5 words not more than 2m for harmonic current AC power supply AC 220V 10 50Hz 1 Precautions When measure the reference voltage from PT or the measuring end of the testing transformer, carefully check wiring to avoid the PT secondary or test voltage short circuit. Be careful not to wrongly connect the current and voltage sampling lines in the connecting process. In the laboratory experiment, the high voltage power supply cannot use the series excitation testing transformer.
Overview Frequency conversion series resonance test device is designed and manufactured for alternating-current withstand voltage test of Possessing a wider application scope, it is the ideal withstand voltage equipment for prefecture-level, municipal-level and county-level high-voltage test departements as well as power installation and repair & testing engineering units. Frequency Conversion Series Resonance Test Device Technical index Rated voltage Quality factor under full load in test of fire power generator Q 10 relating to load Quality factor under full load in cable test Q 30 relating to load Quality factor under full load in test of main transformer: Q 30 relating to load GIS, the quality factor under full load in switch test and other tests Q 50 relating to load Input power supply single phase of 380V Frequency adjustment range 20Hz 300Hz Accuracy of system measurement 1.5 The unit possesses protective functions, such as over voltage, over current and zero start. Description for main configuration and technical data of equipment One set of variable-frequency power supply Rated power 10kVA; Input voltage single phrase of 220V or three phase of 380V 10 and 45 65Hz Output voltage 0 400V adjustable Output voltage frequency 30 300Hz 0.1Hz adjustable stepping Instability degree of frequency 0.02 Output current: 0 25A
Product description Earth ground resistance tester is a high-precision testing instrument used in various fields such as substations to test grounding resistance and related parameters.The instrument is of an integrated structure, with a built-in frequency conversion power supply module, and the output power supply is continuously variable in frequency. The frequency can be changed to 45Hz or 55Hz, the high-speed processor core is built in, and the high-end digital filtering technology is adopted, thus effectively avoiding the interference of power frequency electric field to the test and fundamentally solving the difficult problem of accurate measurement under strong electric field interference. Technical index 1 Conditions of use 1 540 RH 80% 2 Anti-interference principle Frequency conversion method 3 Electric source AC 220V 10% allowed generator 4 Measure output current 1A 5A Adjustable 5 Measure output voltage 0V 100V 6 Test power frequency 45, 50, 55, 60, 65HZ single frequency 45 55, 55 65 47.5 52.5HZ Automatic Dual Frequency 7 Output rating 500W 8 Distinguishing rate Grounding impedance 0.0001 Impedance angle 0.0001 9 Precision Grounding impedance 1% reading 0.002 Impedance angle 1% reading 0.02 10 Resistance measurement range 0.001 5 11 Exterior dimensions 370 295 W 225 H 12 Memory size 100 groups support U disk data storage 13 Weight Main engine 13 Kg, ground pile 7 Kg
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Take temperature readings from a distance, or underwater, using this Waterproof DS18B20 Digital Temperature Sensor. It's got a 90cm (0.9m) cable with a stainless steel, PVC coated probe at the end. You'll be able to use it with any 3V-5V system, and take temperature readings with an accuracy of 9-12 Bits (configurable in code). The best part is that it's digital, meaning you won't suffer any signal degradation over the longer distance. Waterproof - Take the temperatures of liquids/moist environments with the stainless steel probe. It's shrouded in PVC plastic too, meaning it will hold it's own in temperatures up to 100 degrees Celsius. Temperature - Usable from -55 degrees Celsius to 125 degrees Celsius. Accuracy of 0.5 degrees. Digital - The digital interface used to relay the readings guarantees minimal signal degradation over the longer distances (90cm for this standard cable) 1-wire interface - You can have multiple DS18B20s connected to the same central micro-controller pin as each device has a unique identifier hard-coded in. Long range - 1.5 meters of cable by default, but you can make it longer if needed Maker friendly - The DS18B20 chip is able to be powered with 3v - 5.5v which is perfect for maker platforms . HOOK-UP GUIDE This sensor is simple, you've got 3 wires (Power, Ground and Data). You simply need to connect the data pin to an input pin on your micro-controller and the power and ground to power and ground You'll also need to connect a resistor between power and signal wires, as shown in the circuit diagram on the Sensor's wiki page. Specifications TECHNICAL SPECIFICATIONS Compatible with 3.0V to 5.5V systems (development board etc) Within 0.5 degrees Celsius accuracy Recommended usable temperature range: -55 to 125 degrees Celsius Select-able 9-12 bit resolution (Factory Default at 12-bit) 1 Wire Interface Unique 64 bit ID for each sensor Query time is less than 750ms Stainless steel tube 6mm diameter by 35mm long Cable diameter: 4mm Cable Length: 90cm 100cm 200cm or Customized Technology character
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Wanptek laboratory DC power supply adjustable regulated switching power supply variable bench source 30V 10A voltage converter There are included 8 packages: Three-digit display 0.1 V/0.01 A 1.NPS306W DC power supply with power display 30V6A 2.NPS3010W DC power supply with power display 30V10A 3.NPS605W DC power supply with power display 60V5A 4.NPS1203W DC power supply with power display 120V3A Four-digit display 0.01 V/0.001 A 5.NPS306W DC power supply with power display 30V6A 6.NPS3010W DC power supply with power display 30V10A 7.NPS605W DC power supply with power display 60V5A 8.NPS1203W DC power supply with power display 120V3A Specifications: NPS-W series products include 4 models, namely NPS306W, NPS3010W, NPS605W, and NPS1203W. The body colors are available in black and off-white. This model is a miniature switching DC power supply. The output voltage and current can be controlled and adjusted by variable resistors respectively, so it provides more convenience and accuracy in the adjustment of voltage and current. The panel also provides high-precision three-window digital tube display of voltage, current and power, so that users can intuitively see the current use status and various parameters of the machine INTRODUCTION: The series of switching power supplies for measuring instrument have ruled out the inconvenience of bigvolume and heavyweight of a traditional power supply possess.Four adjustment buttons,The output voltage and current respectively is controlled by two variable resistors with coarse and fine regulation for morehandy and precise adjustment. 1.Have complete operating protection function.over temperature protection,overload protection,short circuit protection. 2.Small size, low ripple,light weight and high power density,Highly efficient. 3.Voltage stabilization, current limiting, simple operation. 4.Constant pressure and constant current switch automatically. 5.Three LED display of voltage, current and power, high precision. 6.Temperature controlled fan heat dissipation, low noise, long life. 7.Four potentiometer more precise adjustment. 8.Dual voltage input and convenient choice. 9.Output Voltage ranges from 0 to rating voltage with continuous adjustment . 10.Output current ranges from 0 to rating current with continuous adjustment 11.AC 110v and 220vcan work, rest assured to choose. Features: 1. Production line test. 2. Mobile phonemaintenance, computermaintenance, electrical appliance maintenance,Car DVD, car audio. 3. Product aging, electroplating,such as resistors, capacitors, relays, DC motors, LEDs, etc. 4. Charge the battery. 5. Laboratory, scientific research teaching,factory, maintenance power supply.school laboratories scientific research and production line use 6. All other occasions requiring DC power supply. Packages: 1x DC power supply 1x power cord (EU,US,UK,AU) 1x Test line 1x Instructions
