Secure Power Engineering

⚡ Complete Substation Equipment Overview – CT, PT, LA, Transformer & Breaker! 👨‍🏭🔧
Today we carried out inspection & monitoring of key 66/11kV substation equipment including CT, PT, LA, Transformer & Circuit Breaker.
Each component plays a critical role in power system protection and reliability ⚡
🔵 CT – Current Transformer
📌 Steps down high current for metering & protection
📌 Ensures relay accuracy during faults
📌 Must be checked for tight connections & insulation
🧤 Prevents relay maloperation during high fault current
🟡 PT – Potential Transformer
📌 Reduces high voltage to measurable level
📌 Provides stable voltage signals to protection relays
📌 Regular cleaning & IR test is essential
⚡ Supports safe relay operation & metering accuracy
🔴 LA – Lightning Arrester
📌 Protects equipment from lightning & switching surges
📌 Discharges high surge voltage safely to earth
📌 Leakage current check ensures healthy LA
🌩️ Prevents insulation breakdown
🟢 Power Transformer
📌 Steps voltage up/down for transmission & distribution
📌 Oil level, silica gel, IR, BDV, and temperature checks required
📌 Any overheating, noise, or leakage must be monitored
🔥 Heart of the substation
⚫ Circuit Breaker (VCB/ACB/SF6)
📌 Interrupts fault current within milliseconds
📌 Protects transformer, feeders & entire system
📌 Needs mechanism lubrication & contact resistance testing
⚙️ Essential for reliable power protection
**⚡ Every device plays a vital role in a safe and reliable substation.
Regular inspection = Zero Failure. Zero Downtime. 👨‍🏭🛠️**

15 MVA, 66/11 KV, ONAN Distribution Sub-station.
"Innovating with Professionalism & Delivering with Trust."

Corporate Office(Dhaka):
7th Floor, Venus complex, Merul Badda, Gulshan, Dhaka, Bangladesh, 1217.
Phone: 01515297758, 01858166482
E-mail: [email protected]
Website: www.securemep-bd.com
Regional Office (Feni):
Ground Floor, Central Plaza, Hospital More, Feni Sadar, Feni.
Phone: 01644271634, 01727617582
Sale Centre (Noakhali): Noakhali Supper Market, Maijdee Bazar, Noakhali. Phone: 01727617582.
Factory Office:Chowala, Sadar Upazila, Narsingdi.

1000 Watt On-Grid Rooftop Solar Installation Chandpur Sadar, Chandpur.
Project Features:
This Project is Connected directly to the utility grid, these systems are ideal for reducing electricity bills while feeding surplus power back into the grid.
• Net metering available
• Lower initial investment
• Ideal for areas with reliable grid supply.
"Innovating with Professionalism & Delivering with Trust."

Corporate Office(Dhaka):
7th Floor, Venus complex, Merul Badda, Gulshan, Dhaka, Bangladesh, 1217.
Phone: 01515297758, 01858166482
E-mail: [email protected]
Website: www.securemep-bd.com
Regional Office (Feni):
Ground Floor, Central Plaza, Hospital More, Feni Sadar, Feni.
Phone: 01644271634, 01727617582
Sale Centre (Noakhali): Noakhali Supper Market, Maijdee Bazar, Noakhali. Phone: 01727617582.
Factory Office:Chowala, Sadar Upazila, Narsingdi.

Substation earth continuity & earth resistance test with Digital & Analog Earth resistance Tester.
Test Result was Satisfactory

Secure Power Engineering was Established as a Pioneer in Bangladesh’s Power Distribution Landscape, Delivering Reliable & Innovative Energy Solutions.

Our Product's & Services:
★ MV/HV Electrical Sub-station
★ Solar Power Generation
★ Testing & Commissioning
★Electrical Engineering Design
★ Fire Safety Plan Design, Approval & Installation

"Innovating with Professionalism & Delivering with Trust."

Corporate Office(Dhaka):
7th Floor, Venus complex, Merul Badda, Gulshan, Dhaka, Bangladesh, 1217.
Phone: 01515297758, 01858166482
E-mail: [email protected]
Website: www.securemep-bd.com

Regional Office (Feni):
Ground Floor, Central Plaza, Hospital More, Feni Sadar, Feni.
Phone: 01644271634, 01727617582

Sale Centre (Noakhali): Noakhali Supper Market, Maijdee Bazar, Noakhali. Phone: 01727617582.

Factory Office:Chowala, Sadar Upazila, Narsingdi.