WAZIPOINT Engineering Science & Technology

Saturday, October 24, 2026

What is the Transformer Protection Relay and How does It Work?

A transformer protection relay is a device used to monitor and protect power transformers from various faults and abnormal conditions. Its primary function is to detect faults promptly and isolate the transformer from the power system to prevent damage and ensure the safety of personnel and equipment.

Differential Relay
Fig. Basic Idea of a Differential Relay 

 

Transformer Protection Relay and Its Working Principle

The protection relay works by monitoring various electrical parameters of the transformer and initiating appropriate actions when predefined thresholds or abnormal conditions are detected.

Tuesday, October 20, 2026

Sunday, October 4, 2026

Construction and Contractor Insurance Requirements in Bangladesh

 

Construction and Contractor Insurance

Construction and Contractor Insurance Requirements: What Bangladesh Projects Actually Demand

Tuesday, September 29, 2026

Thermovision Camera for Transmission Line Inspection

Thermovision Camera for Transmission Line Inspection

Thermovision Camera for Transmission Line Inspection



Thermovision Camera for Transmission Line Inspection: Finding Hot Spots Before They Trip the Circuit

Saturday, September 26, 2026

Solar Controlled Air Cooler Project

 

Solar Controlled Aircooler Project
Solar Controlled Air Cooler Project



A "solar-controlled air cooler" is an air cooling system that primarily uses electricity generated from solar panels, often with a smart control mechanism to maximize solar usage and, in hybrid models, seamlessly switch to grid power when needed.

The term generally refers to two main types of devices that utilize the sun's energy for cooling:

Follow Our Facebook Page

WAZIPOINT System — Bangladesh engineering community
WAZIPOINT // Engineering Reference FIG. FB-01
Facebook
Follow WAZIPOINT Engineering
Field guides, standards updates & calculator tools — IEC / BNBC 2020 / PGCB-BPDB-DESCO-DPDC practice notes.
wazipoint.com — engineering reference & field notes