AEMC® Instruments manufactures electrical test and measurement instruments for electrical, thermal, and energy management for the industrial, commercial, and utility marketplace.
Founded in 1893, AEMC® Instruments is an industry leader in current measurement probes, power quality analyzers, ground resistance testers (including the new revolutionary tower testing system) and insulation resistance testers. Our full product line also includes clamp-on meters, transformer ratiometers, power quality meters, harmonic power meters, data loggers, lightmeters, oscilloscopes, cable testers and numerous other electrical test instruments.
Try to imagine sound waves penitrating land mass. But, unfortunately? To do so, could cause an avalanche or land slide. 🤔 thus Binary Harmonics could be implemented by placing Harmonic beacons around the area that you want 3D image's of?
Not possible. The 6416 and 6417 are Ground Resistance Testers and can only measure up to 40A of current. What you describe is power logging like the Model PEL103 or current measurements with a clamp-on meter like the Model 607. Please contact techsupport @ aemc . com with more questions. Thanks!
Not possible. The 6416 and 6417 are Ground Resistance Testers and can only measure up to 40A of current. What you describe is power logging like the Model PEL103 or current measurements with a clamp-on meter like the Model 607. Please contact techsupport @ aemc . com with more questions. Thanks!
Thanks for the webinar! Certainly useful information to have or revisit. A few topics that I believe would have been useful to address (and could be done so in a future webinar?), and/or maybe mention the reference material(s) where answers to the subsequent questions could be found: 1. Which fall-of-potential does Glen recommend using during the aforementioned HM scenarios? As in, how many measurements are being taken (10, 3...the 52%-62%-72% method, or one...the very truncated 62% method)? In the field, it seems as though the 62% method is the most common. Doesn't strike me as being sufficient (to trust 1 reading, rather than establishing a curve), especially in light of the notion of redundancy for safety purposes. 2. Is there an assumption being made about where the damaged container came to rest, and the direction of static dissipation flow? More specifically, is the ground upon which the container sits being tested (especially considering the potential for varying soil types on a given scene)? Is it possible that the grounding field established to dissipate the static charge is actually higher than the ground upon which the damaged container is sitting? 3. Do the leads need to be 10 times the diameter of a grounding field in an emergency situation? What are the potential issues of having leads that don't meet that, or there's no suitable place to at that distance to set up a grounding field? Moreover, how much does the length of the cables used to ground the containers affect relaxation time? Is there a direct correlation, and what consideration needs to be given to gpm as it relates to cable length (50 ft can handle x gpm in regards to dissipation, does a 100 feet cut that gpm in half, etc.)? 4. Glen mentioned testing the resistance between the container and the clamps/cables. That is not something that I've ever seen in practice. Is there a reference guide for doing this portion? Or does he have a recommendation? 5. Is it possible to over-saturate a grounding field? In the mountains of CO, during the winter time, there is very little opportunity to drive anything into the ground, much less dig for laying rods horizontally. So, in lieu of those, a practice that has been implemented is using a front-end loader's worth of sand/dirt used for mitigating icy road conditions, and dumping it on either frozen earth or pavement as a grounding field. Having tested this, I've gotten resistance as low as 35 ohms. That being said, if static flows to that pile of sand/dirt, is it possible to oversaturate it, to the point where it becomes ineffectual? Thanks for your time and consideration!
There are many worldwide standards and application specific standards. NFPA 70 calls for 25Ω or less for a typical electrical system. Communications towers, transmission/distribution towers, lightning protection systems and electrostatic discharge (ESD) grounds may all have different ground resistance targets.
Hi! Thank you for the video, how do we find the standard deviation of the results after testing has completed using the Wenner method on the 6471? Thanks!
Unfortunately, no. Any standard deviation calculations will need to be done externally from the 6471. The calculator linked above can be useful if you wish.
Generally, the frequency to use for testing Tower Foot Resistance (TFR) is a similar frequency of the power system involved and away from any strong harmonics of this frequency. In AUTO mode, the meter defaults to 128 Hz and this strikes a balance of a strong test signal and reduced inductive reactance with minimal influence of system harmonics existing on the grounding system. This closely models the behavior of the ground system during normal electrical disturbances in the transmission/distribution network. If you were trying to model other anomalies, like lightning strikes, you would be inclined to test with a SWEEP mode to model the grounding system’s behavior across a wider frequency spectrum. Hope this helps. Please contact techsupport @ aemc.com for more information.
Hola, el mensaje ‘Prod CAL’ indica que el instrumento está en modo de producción. El procedimiento para reiniciar el instrumento a modo de operación normal es muy sencillo. Por favor contáctanos en techsupport @ aemc.com para enviarte el proceso y resolver cualquier otra duda.
Tengo un registro de 3 días ( a un intervalo de un seg, con todos los parámetros por grabar) en un AEMC 8336. al parecer, por la cantidad de información que conforma dicho registro, no puedo descargar dicho registro (se queda mucho tiempo parado en 32%), con esto, pregunto: 1.- Es posible descargar el archivo por partes? ; 2.- Es posible descargarlo como registro con periodos de tiempo diferente? . Saque la memoria y la leí directamente, si me da oportunidad de bajarlo con intervalos diferentes, pero solo descarga el 32% del registro (sólo leo un día)...qué se puede hacer? de antemano gracias!!!
Hola, generalmente los registros se pueden descargar rápidamente introduciendo la tarjeta SD en la computadora, que es justo lo que estás haciendo. Los registros no se pueden descargar por partes. Por favor contáctanos en techsupport @ aemc.com y con gusto te ayudaremos con la descarga.
I'm good with just going along for the ride. I get tired of being taught stuff, just want to enjoy it just like you do. Love the radio work, love the flight planning and tracking...love it all. Thanks.
Desculpe, você está tendo problemas. Entre em contato com o suporte técnico da AEMC em "techsupport @ aemc. com" para obter ajuda com seu problema. Obrigado.
What tips can you give to first time buyers of micro ohm meter? Our factory probably needs one but am not sure if the benefit will be significant enough to make an impact on reducing maintenance cost. Our factory makes use of spot welding machines and we have frequent downtime due to failure of welding cables resulting to weak welds
The PI value is only available on the display after the PI time has expired. The default times for PI are 1-minute/10-minutes. In this case, the PI ratio is viewable at the end of testing, which would be 10-minutes. Hope this helps. If you have further questions, please email us at techsupport @ aemc.com Thank you!
I really like earth grounding resistance meter. I have it on my wish list. Do you need a electrical salesman in Northern California. I love to market your product.
Thank you for your kind feedback! We currently have a sales representative in the Bay Area who's very good. Send an email to techsupport @ aemc . com and I can get you in touch with them about any opportunities in CA.
Hola, la distancia A sugerida es entre 8 y 10 veces la profundidad de la pica de puesta a tierra con el fin de evitar que se empalmen las áreas de resistencia efectiva de la pica Z(H) y del sistema de puesta a tierra bajo prueba. Asumiendo que la pica de puesta a tierra está enterrada 8 m, la distancia A sugerida sería de 80 m. Aún con 80 m de distancia, es necesario realizar tres mediciones posicionando la pica Y(S) a 52%, 62% y 72% de la distancia de A con el fin de verificar la validez de los resultados. Si tiene más preguntas, no dude en contactarnos en techsupport @ aemc.com.
This video is pretty good at explaining how to test grounding electrodes and electrode systems. It does however muddle the differences between BONDING and Grounding. The grounding electrode system has little to do with clearing a fault (protecting equipment from faults 2:48). Think about that for a moment, apply 120v to a 25 ohm rod (NEC suggested target) will the resulting current flow cause a breaker to trip? 120/25= 4.8a that is not going to cause a 20a or 15a breaker to trip. Even if we lower the resistance to 5 ohms which is a common engineering standard we would only cause a 26a breaker or fuse to open thus clearing a fault. In a commercial building where breakers are often rated at 100a -1000a that could not realistically be relied on to clear a fault. Fault current for tripping breakers is dependent on a low resistance path NOT to earth as suggested here but to the center tap of the transformer or transformer neutral terminal which is a function of BONDING. The NEC in article 250.4(A)(1) states that grounded electrical systems “shall be connected to earth in a manner that will limit the voltage imposed by lightning, line surges, or unintentional contact with higher-voltage lines and that will stabilize the voltage to earth during normal operation.” Simply stated a grounding electrode system at a service entrance is for power quality not clearing faults. That is not to say it is not an essential part of your electrical system and the rest of this video does a great job explaining how that works.
Great info, how the unused drain wire should be terminated? Should it be cutted off back to jacket? Or can it be twisted around transition where multi conductor jacket was stripped?
A professor from Siemens Germany came over for a complicated malfunction of a machine control. He did not allow us to talk about earthing. After all, planes and ships have no earth either. Equipotential bonding was the right word.😁
is it possible to measure on the transmission tower? if the Z electrode is placed 80 feet from the ground rod. Or can we use clamp on tester on transmission tower?thanks
We sell a 6474 Tower Testing Kit for tower testing. Here's a video describing the process: ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-R_exTjDshM4.html
Directamente en la pantalla del instrumento se pueden ver datos en tiempo real incluyendo forma de onda, diagrama fasorial, potencia, distorsión armónica, factor de potencia y armónicos; también se pueden ver datos registrados. El software además de poder mostrar datos en tiempo real se utiliza para configurar el instrumento, descargar datos registrados, analizar los datos y generar informes a partir de ellos. Si tiene más dudas, por favor contáctenos en techsupport @ aemc.com
@@AEMCInstruments En cuánto el análisis de los datos y mediciones que hace el equipo, se puede hacer directo de la pantalla de equipo de manera independiente o la utilización del equipo implica qué tienes que llevar los datos para analizar al Software o lo puede de las dos forma, desde el equipo y también desde la computadora, con los software que tenga como el Data View u otros?
Cada parámetro registrado en una sesión de registro se puede analizar directamente en el instrumento y también en la computadora mediante el software DataView, que está incluido con el instrumento. Al analizar la sesión de registro en el instrumento se puede ver una gráfica para cada parámetro y navegar por la gráfica a diferentes tiempos en el registro. En la computadora también se puede realizar este análisis después de descargar la sesión. Una de las ventajas de descargar la sesión de registro a la computadora es que en DataView® además de poder analizar los datos, se puede generar un informe estándar con tan solo presionar un botón. No dude en contactarnos mediante correo electrónico o teléfono si tiene alguna otra duda.”
Es posible realizar análisis directamente desde el instrumento, dependiendo de cuáles valores se están probando. El analizador puede mostrar valores RMS y pico máximos y mínimos que se han alcanzado desde que se encendió el instrumento o desde que se presionó cierto botón. Además, se puede analizar en el instrumento datos almacenados anteriormente. Para más detalles por favor contáctenos en techsupport@aemc.com y con gusto los asistiremos.
El instrumento se puede utilizar en su totalidad sin el software; todas las funciones y opciones de configuración están disponibles en el panel frontal instrumento. El software está incluido y sirve para configurar el instrumento desde la computadora, descargar resultados de las pruebas y generar informes a partir de los resultados descargados. ¡Gracias por preguntar!
Your explanation is too broad but non substantial for me, what we need is the actual testing at site not like people working construction on their desk or table only.
Estos sirven para hacer estudios de calidad de energía acorde al Código de Red? Ya que se indica que deben ser equipos clases A pero estos AEMC son solo clases B. Dónde podría cotizar en México este tipo de analizadores ?
Hola, como usted comenta, el Código de Red en México requiere el uso de analizadores de calidad de energía Clase A; los modelos 8333 y 8336 son Clase B. Por el momento no contamos con un analizador Clase A, pero próximamente lo tendremos. Consulte por favor con nuestro distribuidor local autorizado Fonkel Mexicana.
@@AEMCInstruments ¿Pero para hacer estudios de calidad de energía internamente (del Bus de B.T hacia abajo) no hay inconveniente? Pregunto porque hay clientes indican requieren el analizador sea clase A forzosamente. Como tal solo me dedico a hacer estudios en B.T.
Hola Rodolfo, nuestro analizador modelo 8345 es Clase A y cumple con los requerimientos del Código de Red. El video en este link muestra el modelo 8345: ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-5ysXJiKvwBI.html. Para más información visite nuestra página de internet y no dude en contactarnos en techsupport @ aemc.com para cualquier duda.
