Powerful output relay for High-Risk Applications
Reliable output relay Styles for Industrial and Industrial Applications
CHINA – ?¡ãAny Electronics?¡À proudly presents their complete variety of output relay . They provide a complete set of output relay items as well as other interrelated merchandise. These units are observed in unique applications like industrial applications, industrial control circuits along with OEM Panels. These devices include superb precision and repeatability. The typical output relay that are designed nowadays require really little panel space.
programmable output relay digital output relay speaker output relay
Detailed Product Description
Auto switch between refrigerating and heating
Retrun difference value
All-purpose Temperature Controller STC-1000:
Switch the modes between cool and heat; Control temperature by setting the temperature setting value and the difference value; Temperature calibration; Refrigerating control output delay protection; Alarm when temperature exceeds temperature limit or when sensor error.
Specification and Size:
1.Front panel size75(L)×34.5(W)mm;
4.sensor length2minclude the probe.
1. Temperature measuring range: -50~99oC;
2. Resolution: 0.1oC; 3. Accuracy: ±1oC (-50~70oC);
4. Sensor error delay: 1 minute
5. Power supply: 12VAC±10%, 50/60Hz;
6. Power consumption: ≤3W;
7. Sensor: NTC sensor (1PC);
8. Relay contact capacity: Cool 10A/250VAC;Heat 10A/250VAC;
9. Ambient temperature: 0~60oC;
10.Storage temperature: -30~75oC;
11.Relative humidity: 20%~85% (No condensate).
1PCS STC-1000 Temperature controller 12v
There was an error connecting to the Amazon web service, or no results were found for your query.
Well there are tons of well written literature on the topic and I've read through a fair share to understand something that seems to be fundamentally missing from the literature ie. How does the MPPT algorithm "lock" the panel at the Voltage where the maximum power is output? NOTE: I understand that it iteratively finds the maximum operating point and commands a Buck-Boost converter to output the Voltage at that operating point. Once the converter converts the input (Solar Panel's instantaneous voltage) to the Voltage it should be locked at in order to output its maximum power, how does the Panel actually get locked at this voltage? Power in = Power out (neglecting losses) in a DC-DC converter so if a 100W Panel is operating at 25W then the converter will see 25W on its input end and output 25W given that power's conserved. So suppose the MPPT says "the optimal voltage is 50V", the Buck-Boost will output 50V but will also output 0.5A to give the 25W whereas we'd want it to output 50V and 2A to give the full 100W. So essentially the panel needs to be locked at 50V to give 2A (I-V curve) but it does its own thing since the MPPT does not "lock" its voltage to 50V. So what's really going on in the MPPT scheme that sets the Voltage of the panel which implicitly sets the current (I-V curve compliance)? NOTE: I'm familiar with most of what the literature says but can someone intuitively answer this? Thank you for your answers in advance. billrussel42 - Thanks for you reply, I understand that portion of it and may have found what I was looking for slightly after posting the question. Here's my thought process now - I just found a paper titled (Analysis and Simulation of the P&O MPPT Algorithm using a Linearized PV array model) by Marcello Villalva and Ernesto Rupert which has an image of a capacitor (which they refer to as a filter) between the Solar Panel and DC-DC converter input. What this image shows seems to be the answer I was looking for i.e. The panel is viewed as a current source and the MPPT actually works to change the capacitor voltage (using the current coming from the array) which locks the array's voltage. So the output voltage regulation I was referring to before just steps up or down to match the battery's charge voltage (what you've said in your reply). But yes, the voltage of the panel SEEMS to be controlled by the coupling capacitor that's connected at the input of the DC-DC conve
And got the following answer:
Basically, the solar cell looks like a voltage and a series resistor, both of which vary with the amount of solar energy hitting the panel as well as other factors. The MPPT uses various methods to find the optimal operating point and adjusts the load for that point. It does that by changing the transfer characteristic of the DC-Dc converter. For example if the max power point is 10 volts and 10 amp, and the DC-DC feeds a 12 volt battery that needs 15 volts for charging, the DC-DC sets the transfer characteristic so that 10v in gives you 15 volts out, and fine adjusts that until the battery is being charged by a current of 6.7 amps, which equates to 10 amp at the input. Or another way to look at it, the DC-DC converter works in a constant power mode, with the V and I adjusted for the required 100 watts on the output, while holding the Vin at the max power point. This all sounds very complicated but it is saved by the fact that the max power point doesn't change very fast, so the controller has plenty of time to make adjustments. Different designs use different methods. The reference describes each of the methods and compares them. They are: Perturb and observe, Incremental conductance, Current Sweep Method, Constant voltage
The output relay function incredibly properly with unique applications which might be certain to power distribution and protection. The relays come with wide adjustment ranges using a scale that is certainly easy to read either in 3 or 4 digits in accordance with the model. These output relay support in escalating the flexibility on the applications, cut down the general energy and upkeep costs. You will find relays that are used for general purposes which are available in trusted designs with speedy replacement possibilities. And you will find models that are utilized for industrial applications and heavier duty applications that work on substantial loads. These items are made to meet the lifetime industrial control requires of your applications.
Their most current items will be the Time counter, Timer Delay, output relay, Fast Connect Couplings, Electronic Motor Couplings, Aluminum Couplings, Morse Couplings and various other folks. The web page offers a detailed description of every model in a variety of categories of output relay couplings and sensors. These products are extremely helpful for high-risk applications. The output relay are also available with attributes like numerous timing ranges and functions. The company is presently trying to find agents and dealers who can market and sell their factory created goods. They may be normally on a lookout for creating new and more reputable products based on the demands and requirements of your market.