engineering

Matambo–Phombeya High Voltage Power Line

Matambo–Phombeya High Voltage Power Line is a engineering topic covered in the lgStudy science library. This page brings together a partial reference excerpt, illustrations, worked examples, real-world applications and a short study plan, so you can understand Matambo–Phombeya High Voltage Power Line rather than just read about it. In short: The Matambo–Phombeya High Voltage Power Line is a high voltage electricity power line under construction, connecting the high voltage substation at Matambo, Tete Province, Mozambique to another high voltage substation at Phombeya, Balaka District, Malawi. Location The power line starts at Matambo, in Tete Province Mozambique, at a 400kV substation there.

Key takeaways

Matambo–Phombeya High Voltage Power Line belongs to engineering; place it in that map before memorising details.
Learn the definition first, then one example that makes the definition concrete.
Connect Matambo–Phombeya High Voltage Power Line to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of Matambo–Phombeya High Voltage Power Line from memory before moving on to harder problems.

Reference excerpt

The Matambo–Phombeya High Voltage Power Line is a high voltage electricity power line under construction, connecting the high voltage substation at Matambo, Tete Province, Mozambique to another high voltage substation at Phombeya, Balaka District, Malawi.

Location The power line starts at Matambo, in Tete Province Mozambique, at a 400kV substation there. The power line would travel in a general north-eastern direction to the Mozambique/Malawi border, approximately 140 kilometres (87 mi) away. From there, the power line would continue into Malawi for another 78 kilometres (48 mi), to end at Phombeya, Balaka District, Malawi, for a total length of 218 kilometres (135 mi).

Overview The construction of this power line has been on the books, as far back as 2007. The World Bank initially approved a $93 million line of credit for this project, but cancelled it in 2010. The main objective of the electricity transmission project is to connect the electricity grids of Malawi and Mozambique. This will allow Malawi to purchase 50 megawatts of power from the Cahora Bassa Hydroelectric Power Station in Mozambique. Also, through the interconnections of the Southern African Power Pool (SAPP), Malawi will be able to import a further 150 megawatts from South Africa through the same power line.

Construction in Mozambique The length of the power line in Mozambique is approximately 140 kilometres (87 mi). The entire project in both countries is valued at US$154 million, borrowed from the World Bank, KfW and the European Investment Bank. The engineering, procurement and construction (EPC) contract was awarded to L&T Infrastructure Development Projects Limited (Lasern & Toubro), an Indian company. L&T will lay the line from the Matambo electricity substation to the community of Zobue at the international border with Malawi, a distance of about 142 kilometres (88 mi). That line will cost over US$35 million. The new 400kV substation at Matambo will be constructed by a consortium comprising Sinohydro of China and Cepco1 of Malaysia, at a budgeted cost of US$21 million.

Construction in Malawi Work in Malawi involves the construction of 78 kilometres (48 mi) of a double-circuit 400kV transmission line and expansion of the electric substation at Phombeya. Each country is responsible for the transmission infrastructure within its territory. Completion of this energy infrastructure is expected in 2023. In 2019 the World Bank lent US$15 million to the government of Malawi towards the construction of this line, along with a new 220kV substation in Phombeya, Malawi.

See also Southern African Power Pool Energy in Malawi

References

External links Overcoming Grid Constraints: Attempts To Enhance Power Trade In Southern Africa As at December 2017. Malawi-Mozambique: a power line will interconnect the two countries As of 7 December 2021.

Worked examples

Example 1 — a first encounter with Matambo–Phombeya High Voltage Power Line

Start with the simplest possible case. Write down what Matambo–Phombeya High Voltage Power Line claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In engineering, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to Matambo–Phombeya High Voltage Power Line before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about Matambo–Phombeya High Voltage Power Line ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of Matambo–Phombeya High Voltage Power Line

In research: Matambo–Phombeya High Voltage Power Line appears in engineering research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry: Engineering practice reuses Matambo–Phombeya High Voltage Power Line in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom: Matambo–Phombeya High Voltage Power Line is common in secondary-school and first-year university syllabi. It links to neighbouring topics Energy in Malawi, High-voltage transmission lines in Malawi, High-voltage transmission lines in Mozambique, so understanding it makes those chapters shorter.
In everyday life: Look for Matambo–Phombeya High Voltage Power Line outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.

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How to study Matambo–Phombeya High Voltage Power Line in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what Matambo–Phombeya High Voltage Power Line means in your own words.
Compare your version with the excerpt and mark what you missed.
Work through the three examples above with pen and paper.
Explain Matambo–Phombeya High Voltage Power Line out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Matambo–Phombeya High Voltage Power Line in simple terms?

Why does Matambo–Phombeya High Voltage Power Line matter?

Because it connects several engineering ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study Matambo–Phombeya High Voltage Power Line?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on Matambo–Phombeya High Voltage Power Line.