Guide to Buy Multimeter Voltage Tester in NOYAFA

Guide to Buy Multimeter Voltage Tester in NOYAFA

2021-10-20
NOYAFA
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multimeter voltage tester is developed by SHENZHEN NOYAFA ELECTRONIC CO.,LIMITED in order to be competitive in the global market. It is elaborately designed and manufactured based on the results of the in-depth survey of global market needs. Well-selected materials, advanced production techniques, and sophisticated equipment are adopted in production to guarantee the superior quality and high performance of the product.NOYAFA has always been working on how to make our brand stand out so that we have strengthened and reinforced our brand mission - offer more authentic and transparent customer services. We have been seriously carrying out the brand mission and have made the voice of this brand mission being heard consistently so that our brand image becomes highly recognizable on multiple channels.We have experienced carrier partners all over the world. If needed, we can arrange the transport for orders of multimeter voltage tester and any other products at Best Cable Tester Supplier in China _ Noyafa – whether through our own intermodal services, other suppliers or a combination of both.
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Cable Tracker Mapping Software
Cable Tracker Mapping Software
Cable Tracker is one of the most famous AI writing assistants. It is available for Windows and macOS. Cable Analyzer is available for Mac OS X.Cable Tracker comes with a built-in programming language, which allows developers to generate proper professional content through cable tracker. For example, it can be used to create informational articles on social media accounts or to explain the benefits of cable internet bundles over other types of internet services (i.e., satellite or fibre). Cable Analyzer can also give a report on technical issues around cable television services (cable modems, etc.).We all know that a cable company is a big part of our daily lives. It's a fact that we depend on them for almost everything. But what do you do if the company's website doesn't inform you about the prices? What price will you pay for getting connected to your cable provider? How much will it cost you for more channels? Where can I get all these information at once?You can use cable trackers to monitor your home business. You can view multiple meters at once. You can also see the data on a per-room basis.With the help of these tools, the cable company can give a more detailed overview of their customers' data.In a world with increasing data available on the internet, more and more companies are realizing that their cable streams can be tracked by third parties. This has created a great opportunity for them to sell their services to cable customers.The IPTV providers in the US have been exposed of selling their content through cable channels and paying huge amounts of fees to these third parties. The IPTV industry is growing rapidly in the U.S., which provides an attractive opportunity for these companies to sell premium viewing rights as well as create business models.Ultibox - a tool to help you find the best cable TV available in your region.This article explains how to use cable trackers and analyzers.In the short time that it has been in the market, cable TV apps have become a staple part of many households. But, with so many app options available, it seems that there is a lack of one-stop shopping.Cable Tracker provides an overview of current television and cable offers in a user friendly and interactive interface. Cable Analyzer allows you to get details about what channels are being viewed at any given moment using predictive analytics. App scheduler will let you set your schedule for watching the most popular shows and keep all of your favorite channels on hand at all times.For years, there were only two cable tracking devices available - the HubSpot and Adobe Pulse. Their prices were over $100 each.The problem with these devices was that they didn't have all features that were needed to run a successful cable plan. It had limited functionality and it required a lot of effort to set up.Cable Tracker helps you to make informed decision on whether or not you should invest in the latest technology for your home business. This app provides more than just cable plans: It also helps you to make informed decisions on network, internet service providers and other important aspects of home business services.The use of cable tracker software in the cable industry is expanding. There are several companies that make these applications for home users to track their TV and internet usage. These applications provide a way for the user to monitor how much time they spend watching TV or surfing the internet, how much time they save and other interesting statistics.New tools have been created to help you watch your cable service. One of them, called Cable Tracker, is a network traffic monitor that will detect sudden spikes in data usage and display the bandwidth used by your internet provider.The applications of the Cable Tracker are varied and have many different uses. The applications of the Cable Analyzer are widely used in telecommunications, cable television, and cable systems. The third application is cable tracker (also known as a subscriber list provider), which allows you to manage your customer’s account information conveniently from your computer or smartphone.The objective of this article is to give some insight into three of the most popular applications that can be found today: Cable Tracker, Cable Analyzer, and Cable Scheduler.
Model Prototype Exercise: Handheld Electric Screwdriver
Model Prototype Exercise: Handheld Electric Screwdriver
To practice designing 3D low-fidelity prototypes, I was tasked to prototype an OXO handheld electric screwdriver as a new opportunity to expand their business into new product lines.Designing for OXOs Brand IdentityBefore sketching out design ideas, I wanted to familiarize myself with the OXO brand, hoping that the form of my design will match with OXOs brand identity. OXO incorporates comfortable and easy to use tools, while also applying simple,universal design. When I was sketching, I wanted to prioritize comfort, which is why the designs for the screwdriver include a hand grip area for the user to comfortably hold the screwdriver. I also attempted to emulate the simple designs of OXO, because the interfaces to be as minimalist as possible.Additionally, the sketches addressed the product requirements of a fluid speed control, a automatic screw driver selection (shape and size), direction mechanism (screwing in vs. screwing out), and a progress digital readout (number of screws in and out).PrototypeI created a handheld electric screwdriver prototype that is 6 inches long. With rocks and Easter eggs filled with rice inside, the prototype weighs one pound, emulating the actual weight of the product. Shape & FormI wanted the shape and form of the screwdriver to be comfortable and intuitive for the user. The handle on the screwdriver is slightly curved to emulate the natural grip when holding an object around your hand. I also included tape around the area to represent different material that would be incorporated for comfort. Additionally the handle is suitable for left-handed users or right-handed users.FunctionalityThere are several functionalities that make the prototype, including speed control, screw driver shape/size selection, screw driver direction, and a digital readout component. The screwdriver will also have a rechargeable battery. Fluid Speed Control Mechanism: I incorporated a fluid speed control under tucked in the handle for easy access to change the speed of the screwdriver while holding it at the same time. The sensor will capture the pressure of the grip and change the speed accordingly. The white thumbtack shown in the left image above is located where ones index finger would be, a intuitive hold and position to be controlling the speed. Screw Driver Selection Mechanism (shape/size): For the screw driver shape and size selection, this screwdriver supports 2 different head changes (Phillips or flat) and 5 different sizes. This screw driver shape and size is presented on a touch screen, where the user can tap to select different heads and sizes. After the user will press set for the screwdriver to automatically change shape/size. This interface is above the gripped area to avoid accidental switches in screw driver. Additionally the interface faces the user when they hold onto the screwdriver, allowing for easy visibility of the current setting of the screwdriver.Screw Driver Direction Mechanism: The screw driver direction mechanism is located on the side of the screwdriver with a slider mechanism to change the direction based on if the user is screwing in versus out. Digital Readout Component: The digital readout component shows the number of screw in and out below the direction mechanism. The reset button allows for the user to set the count back to 0.Rechargeable Battery: The screwdriver is rechargeable and the battery is placed inside the bottom of the screwdriver. AnalysisAfter finalizing the prototype, my peer members were able to give critiques and I was able to conduct one in-depth user test on all functionality. Click on the link below to view a snippet of the user test.What went well?Many users enjoyed the fit and weight of the prototype, explaining that the curved form of the screwdriver fit well with their grip and how they would intuitively hold the screwdriver. Users found the reset button on the count of the number of screws in and out practical and functional even thought it wasnt a product requirement.The speed control was intuitive for everyone, knowing that the harder they pressed the faster the head would turn. All users found the button placed in a comfortable position where their index finger was. The placement of the rechargeable battery was intuitive for all users.What needed improvement?Many users were confused with the digital readout component that indicates the count of screws in and out. Manyusers were unable to initially understand what the numbers stood for. There was uncertainty with the set button, expressing confusion on the ordering of changing the heads of the screwdriver. If the set button should be pressed before or after selecting the shape and size.The placement of the reset button may get in the way when gripping the screwdriver, possibly causing unintentionally reset of the digital readout. Additionally there was no way to reset only one of the digital readout numbers. So if a user wanted to reset only the number of screws in, this would not be possible.Takeaways & Next StepsOverall based on this analysis, the most effective component of the prototype was the shape/form of the screwdriver as well as the fluid speed control mechanisms. Both were praised and intuitive for users. However, the least effective component was the interface of the digital readout component. By using icons paired with labels of in and out the digital readout component can be more clear on what is being represented. Additionally if the slider is placed between the label and the actual readout component, the label would be on the top, possibly better indicating what the digital readout is and what the in and out slider does.Next steps would be to improve on the interfaces of the digital readout component, since this was the least effective functionality. After improving on the new interface, the next step is to do another round of critique and user testing. RELATED QUESTION Which is the best natural face mask for dark and oily skin? Hello there,The Best Face Mask for Oily SkinOily skin can be a major cause of acne because the pores are constantly clogged. This is why you need a great mask to help get rid of excess oil in the pores and on the skin.This mask works hard at regulating oiliness, soothing acne flare-ups and soothing the skin. To make the mask, you will need:1 apricot1 tablespoon of natural yogurt1/2 teaspoon of cosmetic clayDirections:Blend the apricot in a food processor. Add the yogurt and the clay and mix it until it becomes a smooth paste.Apply the mixture to your face and allow it to dry for 20 minutes before rinsing it off with lukewarm water. We love DIY face masks because of their easy to make recipes and all-natural ingredients.Heres some best face mask for all skin problems. You can make it easily at your home.1. The Activated Charcoal Acne Face Mask2. The Avocado & Honey Acne Blasting Face Mask3. The Honey Acne Face Mask4. The Cucumber Acne Face Mask5. The Turmeric Face Mask for Acne6. The Aloe Vera Acne Face Mask7. The Cinnamon Acne Face Mask8. The Apple Cider Acne-Fighting Face MaskGet the face mask recipe and benefits here:22 Of The Best Natural Face MasksI hope this might be help you to get rid of oily skin.Thank You!
Brief Introduction of Intelligent Handheld Cable Tester
Brief Introduction of Intelligent Handheld Cable Tester
Intelligent handheld cable tester Handheld cable tester generally adopts pulse reflection method. Judge the fault point according to the returned waveform. The waveform returned during each test will be different due to some external reasons. Therefore, the requirements for the working experience of users are relatively high. In view of this situation, TFN launched an intelligent handheld cable fault tester. The intelligent handheld cable fault tester is equipped with AGC (digital gain automatic control) system; Digital waveform automatic recognition technology; ARM CPU with FPGA technology. The machine automatically recognizes the waveform and judges the fault point. There is also waveform comparison function, which can make you learn waveform recognition faster. Instrument introduction: D131 series cable fault obstruction intelligent rangefinder is suitable for automatically measuring the precise position of core wire obstacles such as broken wire, mixed wire and ground gas of power cable and communication cable. The d131 series is characterized in that it can automatically test many typical faults. The specific features are as follows: 1) DAGC (digital gain automatic control) system: digitally adjustable gain. Eliminate the waveform distortion of the original instrument of the same type due to the potentiometer knob. It can also be used for pure linear adjustment, which is conducive to manual testing. 2) Digital waveform automatic recognition technology: rely on the machine to automatically recognize the waveform that is difficult to judge manually. 3) Using ARM CPU and FPGA technology, it can quickly carry out various complex operations and accurately judge the fault waveform. 4) Waveform comparison function is convenient to compare the test waveforms of fault line and normal line, and clearly locate the fault point. 5) Large screen color LCD display, humanized interface menu design, fast digital buttons, convenient for users to operate. 6) High energy lithium battery can be used for up to ten hours (charging with a special charger). 7) Wave speed memory, power on after power off, and the wave speed is automatically set to the wave speed at the last power off. fqj
Classification of Underground Pipeline Detectors
Classification of Underground Pipeline Detectors
Classification of underground pipeline detectors 1. One category is to detect metal pipelines, electric / optical cables and some non-metallic pipelines with metal marker lines by using the principle of electromagnetic induction. This category is referred to as pipeline detectors for short. Advantages: fast detection speed, simple and intuitive, convenient operation and high sensitivity. Disadvantages: (underground pipeline detector) when detecting non-metallic pipelines, non-metallic probes must be used. This method is laborious and needs to invade the interior of the pipeline. 2. The other is to use electromagnetic wave to detect underground pipelines of all materials, which can also be used to find underground buried objects, commonly known as radar, also known as pipeline radar. Advantages: (underground pipeline detector) can detect pipelines of all materials. Disadvantages: high requirements for environment, poor sounding ability (it is difficult to check pipelines with deep buried depth), and high requirements for operator quality and experience. Any instrument is not superior and needs to be used together to give full play to their excellence. Traditionally, pipeline detectors only refer to pipeline detectors using the principle of electromagnetic induction. They are also instruments that use * many. Dear customers: the company also has high-voltage cable fault tester, cable fault locator and cable identifier products, You can call the company's service phone through the web page to learn more product details. Perfect service is our pursuit. New and old customers are welcome to buy their favorite products at ease. We will serve you wholeheartedly!
What Are the Functions of the Cable Identifier
What Are the Functions of the Cable Identifier
1. Left and right direction indication: the left and right arrows show the cable position, which is convenient and intuitive. 2. Tracking error prompt: the innovative patented technology of AC signal direction measurement is used to eliminate the ground wire return and induced current interference of adjacent and cross pipelines. When correctly tracking the cable to be tested, the pointer points to the front; When tracking to the adjacent cable, the pointer will be backward and a question mark will be displayed to prompt the tracking error. 3. High anti-interference: the unique digital processing method can completely suppress the power frequency and harmonic interference of adjacent operating cables. 4. Sound prompt: when it is very close to the top of the cable, there is a sound prompt. 5. Single key measurement of pipeline depth and current intensity: it can directly read the depth value and the current carried by the cable. 6. Multiple detection methods: in addition to the traditional sound peak method and sound Valley method, innovative and accurate methods are especially provided. The sensing range of the traditional sound peak method is too large, which is not conducive to accurate detection. Although the sound Valley method is accurate, it can not distinguish the parallel cable. The accurate method has a very narrow response range, is very accurate, and can distinguish the parallel cable. It is a better way to find the path in the complex area of the pipeline. 7. Two active detection frequencies: 1kHz, suitable for basic off-line detection; 15KHz is suitable for special situations. 8. Passive detection: it can directly detect the running cable without connecting the signal generator, and can also be used to detect other pipelines. 9. Historical curve display: the screen displays the historical curve of signal amplitude to visually judge the signal change. 10. Uniqueness identification: the detection caliper is used to identify the uniqueness of the cable. Through the combined signal sent by the detection generator, the amplitude and direction of the current on the cable can be accurately measured, and the identification results can be clearly given. 11. Built in battery for easy replacement: built in Ni MH battery provides reliable charging mode. Rechargeable batteries and dry batteries can be used interchangeably and can be replaced easily. Even if the battery fails, it can be easily replaced without repair, and it is conducive to emergency use without timely charging. 12. Low power consumption and long battery life: the instrument can work continuously for more than 30 hours by using a fully charged Ni MH battery or a new alkaline battery. 13. Automatic shutdown function: when the instrument does not operate within 30 minutes, it will automatically shut down to reduce battery consumption; When the battery is under voltage, the instrument will also shut down automatically to protect the battery. 14. The casing is durable, light and easy to carry.
A Guide to Cleaning High Voltage Detector Tester - Do-it-yourself
A Guide to Cleaning High Voltage Detector Tester - Do-it-yourself
A non-contact voltage tester is a safe method to ensure that no current touches the wire. It is lightweight, makes no noise and has a hot wire covered with plastic insulation.If you hear continuous chirping or see a series of flashes, this confirms that the tester has detected voltage. A voltage tester is a simple device that checks whether electric current is flowing through a circuit.A voltage tester is helpful when performing electrical work such as wiring, installing lights or troubleshooting household appliances, as it can warn you of unsafe situations by detecting currents that you might find the hard way. You can also use voltage testers to check that wires have enough voltage to power certain electrical devices or machines. The simplest type is the neon-colored two-wire tester, which measures from zero to 500 volts.If the voltage exceeds 9.6 volts, this means that the battery has become sulphate and can no longer absorb any charge. High voltage detectors that detect AC and DC voltages have a longer service life and the tungsten carbide tip is protected by a plastic cap when not used.If you wish, you can take the test a little further and deactivate the ignition injection in order not to start the engine. This will allow you to crank up the engine, but we suggest that it lasts no longer than 1.5 seconds.When the battery is fully charged, the voltmeter should indicate that it maintains a voltage of 9.6 volts or higher. If your voltmeter shows a voltage between 12.4 and 12.8, this means that your battery is in good condition.A voltage of 12.9 volts is a good indicator that your battery has an excessive voltage. If you have a voltmeter with a voltage of 12.2 volts, you should consider dripping a charge into your battery. In this case, switching on a high beam deprives the surface charge of excessive voltage.The CAT voltage specified on the tester or accessory must match the electrical environment in which you are using it. Be sure to test the absence of voltage before performing any tests that are necessary for PSA. If the absence of the voltage test proves that the circuit is dead, it should be considered as activated.In older homes, do not assume that a wire box is a dead circuit breaker. Your digital multimeter should last long before it breaks or wears out. Testing a lead temperature sensor with a fuse, for example, does not work.The conductor of the circuit board wired into the device must be checked to ensure that the device is on. Place a tip of the probe at the end of the conductor, where the fuse must be checked. If one of the components of a circuit board is switched off, the device should switch off the current by separating one end of each component from its circuit.Some products have remote displays or wireless contactless tools that help you get out of danger by allowing measurements to be made without the activated part making contact. The live-to-dead or live test method requires you to test the functionality of your devices without knowing the voltage source before making measurements. Use this method to ensure that your instrument is working properly before you take any measurements.If you would like to repair cars or electronics and electrical appliances, a multimeter is a handy accessory for your DIY kit. If you do not have it, you can use a voltage detector (instead of a voltmeter) or a continuity tester (instead of an ohmmeter). When used correctly, the multimeter indicates whether the white or black wires in the reverse socket are grounded when the cable enters the box that feeds the socket.Working with the main power supply can be dangerous and you may suffer shock and electrocution if you do not take appropriate precautions. Read and understand your multimeter's manual and the warnings it contains before using it to measure main current and voltage.If you are experiencing faulty wiring or any type of damage, repairs or alterations should be performed by a qualified electrician after further testing or conversion work has been carried out.Once the conversion work is complete and the power supply is restored, perform a few basic tests to make sure the switches and sockets work. If you test a wall socket powered by a wall switch known as a switch socket (a common means for powering a floor lamp, for example), you can use a non-contact voltage detector to check the wall socket is in the position of the wall switch. Use a socket tester on the outlet to search for switches and a non-contact voltage tester to place any kind of electrical load on the circuit.You can add the creation of it to a beautiful piece of it: you can wear it by using a lock, uni-T voltage detector, pen detector, sound light, alarm LED flashlight, cute little pony cupcake packaging that makes children giggle, layer of chevron counting from the innermost layer to the perforation in the outermost layer, bachelor train, 125 specialty, beautiful silverwork, 5 citrus stones in addition to rainbow-pleasing shades.
How Does the Doctors Screwdriver Run a Calculation Whilst Destroyed?
How Does the Doctors Screwdriver Run a Calculation Whilst Destroyed?
In The Almost People, and The Eleventh Hour, the Doctor's screwdriver is destroyed and later regenerated. However, in The Day of the Doctor, the Doctor(s), run a calculation running over 400 years. How is this possible, if the screwdriver was destroyed between the start and finish? This is technically trivial. Anyone running a very long computation (and some real computations can last for weeks) will regularly save the state of the computation on some reliable medium that does not need power, so that the computation can be restarted after any kind of failure. Actually there can even be several levels of back-up, balancing reliability and cost.The computation does not need to be restarted with exactly the same software, as long as the intermediate results that have been saved can be interpreted and reused by the new software. Actually this can even be a way to improve the software (or the hardware) while the computation is on-going. This is standard technology, even for people who are not time-lords.The screwdriver could simply save its state on the Tardis whenever there are close enough to communicate by whatever means. It could also be saved in various places known to be stable in time by someone who travels through time.If the screwdriver is destroyed, only that part of the computation done since the last back-up is lost and must be redone.By the way, since the Doctor travels through time, he could well organize the computation and back-up to get a lot more than 400 years worth of computation, depending on the structure of the algorithm and the computational capacity of the screwdriver.It is to be expected that the computation does not take all the computational power of the screwdriver. If a computational thread actually leaves a lot of untapped computational power, it can be parallelized with a future fragment of the same thread by getting from the future the starting state for the later thread. Time travel extends the possibilities for parallelizing computations. OTHER ANSWER: Like Rose said in The Day of The Doctor" Same Software different case"Therefore the Doctor's screwdriver was not completely destroyed, only the case containing it was; the software was safe making it possible for the TARDIS to repair the case and give the Doctor a seemingly "new" screwdriver with the computation still intact
How Much Do You Know About the Cable Fault Tester
How Much Do You Know About the Cable Fault Tester
In recent years, China's computer technology and electronic technology are developing rapidly, so the product performance of many industries has been continuously improved. The cable fault tester is also like this. Its functions are more reliable and rich, and its service life has been improved to a certain extent. Today we are going to talk about the new highlights of the cable fault detector. 1、 New intelligent modules are added to the cable fault test: new sensors such as optical fiber sensors, polymer sensors and biosensors continue to appear and will develop rapidly. 2、 The emergence of new cable fault test fieldbus structure: expand the self diagnosis function of cable fault test instrument and facilitate maintenance. The connection of cable test system is more reliable and simple. Therefore, the installation cost is greatly reduced and the control scale is variable. 3、 Function integration of electronic cable test system: it is more closely combined with computer, power electronic devices and strong current control, and the continuous control and intermittent control are used at the same time. In the selection of cable fault tester, such products can be scientifically selected according to the cable characteristics of their industry, and the most suitable tester combination can be selected, which can greatly improve the work efficiency and avoid unnecessary waste of funds. At present, the cable fault testers used by power departments are basically designed and produced based on the principle of impulse flash method; In terms of its principle, it is most appropriate to solve the high resistance leakage and high resistance flashover faults. At this time, when the fault point is discharged, the voltage is high and the sound is loud, so it is easy to point on the ground. At present, there is only one solution in the world, but such faults are not very common. Use advantages: 1. Complete functions, safe, rapid and accurate test failure. 2. The instrument adopts low-voltage pulse method and high-voltage flashover method to detect various cable faults. It can directly test the flashover and high resistance faults of power cables without burning through. If equipped with a sound point meter, the position of the fault point can be measured accurately. 2. High test accuracy. The instrument adopts high-speed data sampling technology, with reading resolution of 1m and high intelligence. The test results are automatically displayed on the large screen LCD with small and data, and the fault judgment is intuitive. It is also equipped with menu display operation function, without special training for operators. 3. It has the functions of wave opening, parameter storage and call out. Nonvolatile devices are adopted, and the waveform and data are not volatile after shutdown. 4. With dual trace display function. The test waveform of the fault cable fault tester can be compared with the normal waveform, which is conducive to further judgment of the fault. 5. With waveform scaling function. Changing the waveform proportion can expand the waveform for accurate test. 6. Control the measurement cursor to automatically search along the line and stop automatically at the inflection point of the fault waveform. 7. The position of the double cursor can be changed arbitrarily to directly display the direct distance or relative distance between the fault point and the test point. 8. With printing function. Print and archive the test results.
Voltage Meter and Voltage Tester?
Voltage Meter and Voltage Tester?
In response to Almond's answer: I am a professional installer, and my digital multimeter is the most-used tool in my box. If you are going to be working with car audio, as a profession or a hobby, then you need to own a multimeter. A test light does not cut it. You do not have to spend a lot; you can get a $20-$40 meter at Sears or Radio Shack that will work perfectly well. A test light wo not show you the difference between 9 volts and 12 volts at the radio power supply, but that can be the difference between a working radio and a dead one.1. Why do you have to use the nominal voltage of the transformer for the no-load or open-circuit test?I think I understand your question so first here's a representation of the equivalent circuit of a transformer: -Under no load conditions the only current flowing into the primary is the current taken by the "parallel components" Xm and Rc. For a normal power transformer that current will be small compared to the current normally taken by the primary when the secondary is driving a load. For that reason you can ignore (short circuit) Xp and Rp and of course the secondary is only producing an open circuit voltage so Rs and Xs are of no consequence.The "thing" in the middle that looks like a transformer is a perfect power transformer and because no current is being delivered to the secondary that perfect transformer takes no current.So, it boils down to Rc and Xm being connected to the incoming power and no further components need to be analysed.I was wondering why exactly you have to use the nominal voltage of the transformer for the open-circuit or no-load test.There is one very important reason for this and that is core saturation - if you do not use the normal applied voltage you will either have too much saturation or too little and you wo not have a representive measurement. Saturation of the core is non-linear with voltage so it's important to use the right applied voltage. Look at the BH curve to see why: -You can see that it is very non-linear once you start approaching saturation and, most transformers will be designed to run at a magnetic field strength (H) in the early to mid areas of saturation. This of course means a smaller transformer size and less iron. Commercial reasons prevail.So, to do the test justice you need to run at nominal levels.If you were doing a test to find out the values of the series components then you would run the primary from a variac and short circuit the output. The sort of voltage that is now applied is a fraction of the nominal voltage so core losses are low (very linear BH curve) and eddy current losses (Rc) are also quite small.2. Measuring floating gate potential with minimal leakage currentIf this is for professional use, use an Electrometer such as this. This type of meter has an input impedance of 10^14 which is adequate to measure voltage in the leakage environment you have. There are a huge range of devices spanning low cost to high cost. You could build an electrometer if you were willing, and here might give you a starting point using an LMC662.If you are simply DIY experimenting then you can build/buy an electroscope. These are not easily calibrated, but can provide good comparative measurements of charge on a point. You could get something like this for $50 or less3. Extension Cord for 20 amp load and other heavy loads?Every 30' is about 2% voltage drop. Voltage is indirectly proportional to Amperes thus as Voltage goes down Amperes goes up. Extension cords are for temporary applications agreed but over time your motors will wear out faster. If I were in the carpet cleaning business I would only use 10AWG for all my needs regardless.4. Bad voltage regulator?There would be no way to tell for sure if something was frying them, but would suggest to you this would be highly unlikely. It is completely within reason for the rebuilt alternator to have gone bad ... that's why they have a warranty. Yes, it's a PITB to take on and off, but at least it did not cost you anymore than an extra trip to the store.
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