WAZIPOINT Engineering Science & Technology: November 2022

Saturday, November 26, 2022

What is the Advantages and Disadvantages of D.C. and A.C. Transmission System?

What is the Advantages and Disadvantages of D.C. (Direct Current) and A.C. (Alternating Current) Transmission System?




What is the Advantages and Disadvantages of D.C. (Direct Current) and A.C. (Alternating Current) Transmission System?


The electrical energy transmission can be transmitted either by means of DC- Direct Current or AC- Alternating Current each system has its own advantages and disadvantages. From that point of view, we want to discuss today the technical advantages and disadvantages of the two electrical energy transmission systems for of electric power network.


D.C. Energy Transmission System


From the couple of years past, engineers in transmission sector are rethinking the DC electric transmission system. DC electric power transmission has been receiving the active consideration due to its numerous advantages as bellow:

Advantages of DC Electrical Energy Transmission System.


The high voltage DC energy transmission has the following advantages over the high voltage AC energy transmission system.


(i) DC system requires only two conductors comparing to three for AC transmission;


(ii) In DC transmission system there is no presence of inductance, capacitance, phase displacement and surge problems comparing AC transmission system;


(iii) In DC electric transmission line has better voltage regulation comparing AC system due to the absence of inductance. For a particular same load the voltage drop in a DC transmission line is less than the AC;

(iv) The total conductor cross section of the transmission line is utilized due to their no skin effect in a DC system;

(v) For the same working voltage, the potential stress on the insulation is less in case of DC system than that in AC system. So, a DC line requires less insulation;

(vi) There in a DC line has less corona loss and reduced interference with communication circuits;

(vii) The high voltage DC transmission is free from the dielectric losses, particularly in the case of cables;

(viii) In DC transmission system, there are no stability problems and synchronizing difficulties comparing AC system.

You may read the another article to know details about D.C. transmission and distribution:


HVDC Transmission and Distribution System Network



Disadvantages of DC Electrical Energy Transmission System

The high voltage DC energy transmission has the following dis advantages over the high voltage AC energy transmission system.

(i) Due to commutation problems the electric power cannot be generated at high DC voltage that is one of the disadvantage of DC system;


(ii) Stepped up or stepped down in electric energy transmission system is an important factor, but in the DC voltage cannot be stepped up for transmission of power at high voltages;


(iii) The DC switches and circuit breakers have their own limitations.

A.C. Energy Transmission System

Now-a-days, most of electrical energy transmission system is in Alternating Current or AC system. Exclusively generation, transmission and distribution system is popular in all over the world.

Advantages of AC Electrical Energy Transmission System

(i) It is easy and can be generated at high voltages AC electric power system;

(ii) The maintenance of AC sub-stations is easy and cheaper than DC transmission system;

(iii) The AC voltage can be stepped up or stepped down by transformers with ease and efficiency that is not possible in DC energy transmission system. This permits to transmit power at high voltages and distribute it at safe potentials in AC electric transmission system.

Disadvantages of AC Electrical Energy Transmission System

(i) An AC transmission conductor copper is required more copper than a DC transmission line;

(ii) The construction of AC transmission electric line network is more complicated than a DC transmission electric line network;

(iii) Due to skin effect in the AC system, the effective resistance of the line is increased;

(iv) The AC line system has capacitance. Therefore, there is a continuous loss of power due to charging current even when the line is open.



Thursday, November 24, 2022

Custom Robots Header Tags Settings For Blogger



If so, then I recommend enabling this guide and enabling custom robot header tags for maximum search engine visibility (especially for new blogs).

Before knowing about the process of setting a custom robot header tag on Blogger, you should know what they are.

Custom Robots Header Tags Setting benefits For Blogger


In the context of Blogger, a blogging platform by Google, Custom Robots Header Tags settings are a set of instructions that you can apply to individual blog posts and pages. These settings provide directives to search engine crawlers about how to handle and index your content. Here are the benefits of using Custom Robots Header Tags settings in Blogger:

Control over Indexing: With Custom Robots Header Tags settings, you have granular control over whether a particular blog post or page should be indexed by search engines. This can be useful if you have certain content that you don't want to appear in search engine results.

Prevent Duplicate Content Issues: By using settings like "noindex" and "nofollow," you can prevent search engines from indexing duplicate or low-value content, reducing the risk of duplicate content issues that might affect your search rankings.

Enhanced SEO: Properly configuring Custom Robots Header Tags can improve your blog's overall SEO. You can guide search engines to focus on your most valuable content, ensuring that it gets the attention it deserves in search results.

Control Crawling: You can control how often search engines should crawl your pages using settings like "noarchive" and "nosnippet." This can be helpful if you want to update content frequently or maintain control over the appearance of your content in search results.

Optimize Internal Linking: Using "nofollow" on specific links within your content can help you sculpt the flow of PageRank (or link equity) within your website. This can be beneficial in optimizing the internal link structure for better SEO.

Protect Sensitive Content: If you have certain content that you want to keep private or accessible only to specific users, using the "noindex" directive can help prevent it from showing up in search results.

Focus on Quality Content: By using Custom Robots Header Tags settings, you can encourage search engines to prioritize indexing and ranking your high-quality, valuable content. This can lead to better search visibility for your most important posts.

Adherence to Guidelines: Custom Robots Header Tags settings help you adhere to best practices and guidelines for SEO. You can ensure that your content is being crawled and indexed in a way that aligns with search engine standards.

Better User Experience: By preventing search engines from indexing certain types of content (such as tag pages or category pages), you can help users find the most relevant and valuable content on your blog more easily.

It's important to use Custom Robots Header Tags settings thoughtfully and strategically. Improper use of these settings could inadvertently impact your search rankings or visibility. Before making changes, it's a good idea to understand how each setting works and to consider seeking advice from SEO experts if you're unsure about the best approach for your specific blog and content.


Custom Robots Header Tags Settings Step-by-Step

In Blogger, you are going to deal with the following custom robot header tags :


Custom Robots Header Tags Settings For Blogger


You may read also: 
In Blogger, you can control how search engines index and crawl your blog using the "Custom Robots header tags" settings. These settings allow you to specify how search engines like Google should treat your blog's pages and content. To access these settings, follow these steps:

Log in to Your Blogger Account:
Log in to your Blogger account using your Google credentials.

Access the Settings:
After logging in, select the blog you want to manage (if you have multiple blogs). Then, navigate to the "Settings" section.

Navigate to the "Search preferences" Tab:
Within the "Settings" section, you'll find a tab named "Search preferences." Click on it to access the SEO-related settings.

Custom Robots Header Tags:
In the "Search preferences" section, you'll find the "Custom robots header tags" option. This is where you can set up how you want search engines to treat your blog's pages.

Here's a breakdown of the available options and how to use them:

Homepage: Choose how you want the homepage of your blog to be indexed:

"All": Allow search engines to index and display your homepage in search results.
"Noindex": Instruct search engines not to index your homepage.
Archive and Search Pages: Control indexing for archive and search pages:

"All": Allow indexing of archive and search pages.
"Noindex": Prevent search engines from indexing archive and search pages.
Default for Posts and Pages: Set a default behavior for individual blog posts and pages:

"All": Allow indexing of posts and pages.
"Noindex": Prevent search engines from indexing posts and pages.
Default for Posts and Pages: Specify whether search engines should follow the links on your posts and pages:

"All": Allow search engines to follow links.
"Nofollow": Instruct search engines not to follow links.
Default for Comments: Decide whether search engines should index pages with comments:

"All": Allow indexing of pages with comments.
"Noindex": Prevent search engines from indexing pages with comments.
Default for Comments: Indicate whether search engines should follow the links within comments:

"All": Allow search engines to follow comment links.
"Nofollow": Instruct search engines not to follow comment links.
After configuring the settings according to your preferences, be sure to click the "Save changes" button to apply the changes to your blog. Keep in mind that these settings can impact how search engines index and display your content in search results, so make your selections based on your SEO goals and strategy.

Remember that while these settings can influence search engine behavior, they are not foolproof, and search engines may choose to interpret and handle them differently. Regularly monitoring your blog's performance in search results and making adjustments as needed is essential for effective SEO.





Thursday, November 10, 2022

Transformer on No-load

 

The answer to the question lies in one of the assumptions made for an ideal transformer. The core of an ideal transformer is supposed to have infinite permeability. So, no MMF is needed to produce working flux. But, in a practical transformer, the permeability is not infinite so we need a certain current for a certain amount of MMF which will produce the required working flux.

No load current has two components (a)Iron loss component and (b) Magnetizing Component.

Iron loss component: It is the component of no load current responsible for resistive loss in the core…

Magnetizing Component: It is the component of no load current responsible for hysteresis loss in the core.

Sunday, November 6, 2022

Transformer Voltage Transformation Ratio

Transformer Voltage Transformation Ratio

How to define the voltage transformation ratio of a transformer?

The voltage transformation ratio of a transformer is nothing but the ratio of the transformer core turn number or induced voltage onto the cores.

In our previous article about Transformer E.M.F. Equation and Derivation, we have equated 2 equations for induced voltage of the transformer primary and secondary windings.

Tuesday, November 1, 2022

How Earn from Clixsense SmartPhone?

How Earn from Clixsense Smart Phone


Easy Earning using Clixsense SmartPhone

Clixsense is an online platform that allows users to earn money by completing various tasks and surveys. While it used to be a popular option for earning money online, Clixsense has undergone several changes and rebranding. It is now known as ySense.

To earn money on ySense, you typically need access to a computer or laptop, as many of the tasks and surveys require a larger screen and specific functionality. However, it's possible to use your smartphone to access ySense and complete certain tasks. Here are some potential ways to earn money using your smartphone on ySense:

Surveys: Some surveys on ySense may be compatible with smartphones. You can log into your ySense account through the browser on your smartphone and complete surveys that are available to you.

Offer Walls: ySense often collaborates with offer wall providers that offer mobile-friendly tasks and offers. These tasks can include signing up for websites, downloading apps, or completing other simple actions.

Referral Program: ySense has a referral program where you can earn a commission for referring others to join the platform. You can share your referral link with friends and family or promote it through social media platforms, including your smartphone.

While using your smartphone for ySense can be convenient, it's important to note that the earning potential may be limited compared to using a computer. Some tasks and surveys may not be available on the mobile platform, and the screen size and functionality may restrict your options.

Additionally, it's always advisable to review the terms and conditions of any online earning platform to understand the rules, payment thresholds, and other relevant information.

Please note that the information provided is accurate as of my last review. Since then, there might have been changes to ySense or other similar platforms. It's always a good idea to check the latest information and updates directly from the ySense website or their official channels.






Transformer with Resistance and Leakage Reactance Calculation

Transformer with Resistance and Leakage Reactance
Transformer with Resistance and Leakage Reactance

What do you mean by Transformer Resistance and Leakage Reactance?

The Transformer resistance means the resistance of the primary and secondary winding of the transformer. 

Transformer Leakage Reactance means there is some magnetic leaking in both of the primary and secondary windings that should be equal to inductive coils connected in both primary & secondary windings.