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American Power Technology

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American Power Technology

American Power Technology (APT) a leading electrical engineering joint stock company specializing in the electrical power commissioning, testing.

American Power Technology (APT) a leading electrical engineering joint stock company specializing in the electrical power commissioning, testing, inspection and maintenance services. APT provides clients with the highest quality electrical engineering services that exceed industry standards. Our single focus is the clients’ needs. APT is knowledgeable in critical systems inspection, testing and maintenance.

15/09/2026

✨ Know the Equipment. Understand the Process. | Part 12

Electrical faults are already a risk… ⚠️

But when protection devices are not properly tested, a fault can turn into equipment damage, operational interruption, or a serious safety issue.

With the **Megger CB-832 Circuit Breaker and Overload Relay Test Set**, our engineers test circuit breakers and overload relays using high-current primary injection up to **2000A**. ⚡

Why do we use it?

✔️ To test circuit breakers using primary current injection
✔️ To verify overload relay response
✔️ To test thermal, magnetic, and solid-state motor overload relays
✔️ To test molded-case circuit breakers
✔️ To test ground-fault trip devices

Protection testing is not only about checking that a breaker is installed.
It is about verifying that it can respond correctly when a fault happens, helping protect equipment, reduce damage risk, and support safer operation.

Understanding the equipment helps you understand how professional testing supports safer systems, stronger protection performance, and more reliable electrical operation.

Follow our page to know more about testing equipment and how it is used in real electrical testing services.

08/09/2026

✨ Know the Equipment. Understand the Process. | Part 11

Insulation failure is not just a technical problem… ⚠️
For facilities, factories, hospitals, hotels, and commercial buildings, it can lead to sudden shutdowns, equipment damage, costly repairs, and serious operational disruption.

With the Megger MIT-30 30kV High Voltage Insulation Test Set, our engineers perform high-voltage insulation testing to assess the condition of MV cables and electrical equipment before breakdown occurs. ⚡

It can be used to perform:
✔️ Step-voltage tests
✔️ Proof tests
✔️ High-voltage insulation testing up to 30kV DC

Why do we use it?

✔️ To test MV cable insulation in new installations
✔️ To support routine maintenance procedures
✔️ To perform acceptance and maintenance testing
✔️ To test electrical plant, switchgear, busbars, transformers, and motors
✔️ To help predict potential failure before breakdown happens

High-voltage insulation testing is not only about checking if equipment can operate today.
It helps facility teams understand insulation condition, plan maintenance earlier, and reduce the risk of sudden operational failure.

Understanding the equipment helps you understand how professional testing supports safer systems, better maintenance decisions, and more reliable electrical operation.

Follow our page to know more about testing equipment and how it is used in real electrical testing services.

01/09/2026

✨ Know the Equipment. Understand the Process. | Part 10

Untested portable appliances can become a safety risk in any facility… ⚠️

Even if an appliance appears to be working normally, electrical issues such as faulty grounding, insulation weakness, or leakage current can still put people, equipment, and operations at risk.

With the **FLUKE 6500 Appliances Tester**, our engineers verify the electrical safety and operation of portable appliances according to relevant guidelines and regulations. ⚡

Why do we use it?

✔️ Earth Bond Test **Rpe**
✔️ Insulation Test **Riso**
✔️ Touch Current Test
✔️ Substitute Leakage Current Test
✔️ Load / Leakage Test
✔️ Load Power and Leakage Current measurement

Portable appliance testing is not only about checking if the appliance works.
It helps confirm that appliances are safe to use, reduce electrical safety risks, and support a safer working environment.

Understanding the equipment helps you understand how professional testing supports safer facilities, better maintenance decisions, and more reliable electrical operation.

Follow our page to know more about testing equipment and how it is used in real electrical testing services.

25/08/2026

✨ Know the Equipment. Understand the Process. | Part 9
Grounding is not only about having an earth pit installed… ⚠️

Without proper earth resistance testing, the system may look complete but still fail to provide the required protection during a fault condition.
With the Kyoritsu 4105A Digital Earth Tester, our engineers measure earth resistance using earth spikes to verify the condition of individual earth pits. ⚡

Why do we use it?

✔️ To measure earth resistance accurately
✔️ To test individual earth pits
✔️ To verify new grounding installations
✔️ To check existing earth pits during maintenance
✔️ To support safer electrical protection and system reliability

Proper earth testing is not just a maintenance step.
It helps confirm that the grounding system is ready to protect people, equipment, and the facility when needed.

Understanding the equipment helps you understand how professional testing supports safer, more reliable, and better-protected electrical systems

Follow our page to know more about testing equipment and how it is used in real electrical testing services.

20/08/2026

✨ Know the Equipment. Understand the Process. | Part 8

MV cable failure is not just a cable problem… ⚠️
It can stop operations, delay production, affect critical systems, and create costly emergency repairs.

With the *HV Diagnostics HVA-45-TD VLF 45kV Hipot with Tan Delta Test Set, our engineers perform diagnostic testing for cables rated up to **35kV* and full acceptance testing for cables *25kV and lower*. ⚡

Why do we use it?

✔️ To test MV cable insulation in new installations
✔️ To support routine maintenance procedures
✔️ To perform VLF Hipot testing for cable condition verification
✔️ To perform Tan Delta testing and assess insulation deterioration
✔️ To identify contamination, damage, or water-treeing in shielded MV/HV cable insulation

Proper cable testing is not only about checking if the cable can operate today.
It helps evaluate insulation condition, support better maintenance decisions, and reduce the risk of costly failure during operation.

Follow our page to know more about testing equipment and how it is used in real electrical testing services.

11/08/2026

✨ Know the Equipment. Understand the Process. | Part 7

A transformer problem does not always appear as a complete failure… ⚠️

Sometimes, the issue starts with an incorrect ratio, wrong polarity, or abnormal excitation current that can affect voltage output, system performance, and equipment reliability.

With the Megger TTR-20 Transformer Turns Ratio Tester, our engineers measure the turns ratio, excitation current, and winding polarity in single-phase and three-phase transformers. ⚡

This equipment can be used for:

✔️ Distribution transformers
✔️ Power transformers
✔️ Current transformers
✔️ Potential transformers
✔️ Tapped transformers

Why do we use it?

✔️ To verify that transformer electrical properties have not changed from design specifications
✔️ To check transformer winding ratio phase by phase
✔️ To confirm winding polarity
✔️ To measure excitation current
✔️ To determine the no-load accuracy of CTs and PTs

Transformer testing is not only about confirming that the unit is working today.
It helps verify performance, detect abnormal conditions, and support safer long-term operation.

Understanding the equipment helps you understand how professional testing supports reliable transformers, safer facilities, and fewer unexpected failures.

Follow our page to know more about testing equipment and how it is used in real electrical testing services.

04/08/2026

✨ Know the Equipment. Understand the Process. | Part 6

A finished installation does not always mean a safe installation… ⚠️
Without proper verification, wiring mistakes, protection issues, or unsafe conditions can remain unnoticed until the system is already in operation.

With the FLUKE 1653B Multifunction Installation Tester, our engineers verify the safety of electrical installations in domestic, commercial, and industrial applications. ⚡

This helps ensure that fixed wiring is safe, correctly installed, and aligned with the requirements of IEC 60364, HD 384, and relevant local standards.

Why do we use it?

✔️ Continuity testing
✔️ Insulation resistance testing
✔️ Loop impedance testing
✔️ PSC (L-N / L-L) and PFC (L-PE) testing
✔️ RCD testing

Proper installation testing is not just a technical step.
It is an essential part of verifying electrical safety, supporting compliance, and reducing the risk of future faults during operation.

Understanding the equipment helps you understand how professional testing supports safer, more reliable, and properly verified electrical installations.

Follow our page to know more about testing equipment and how it is used in real electrical testing services.

28/07/2026

✨ Know the Equipment. Understand the Process. | Part 5

Electrical insulation does not stay in the same condition forever… ⚠️
Over time, heat, load, moisture, and operating conditions can weaken insulation and increase the risk of breakdown.

With the **Megger MIT515 Insulation Tester**, our engineers can measure insulation resistance from **250V up to 5000VDC** to assess the condition of electrical equipment and cables. ⚡

Why do we use it?

✔️ To measure the insulation resistance of equipment and cables up to 5000VDC
✔️ To evaluate insulation condition during maintenance
✔️ To support preventive maintenance decisions
✔️ To perform diagnostic functions such as **PI** and **DAR**
✔️ To reduce the risk of unexpected breakdown during operation

Proper insulation testing is not only about checking if the system is working today.
It helps facility teams understand equipment condition, plan maintenance better, and reduce the chance of costly interruptions.

Understanding the equipment helps you understand how professional testing supports safer, more reliable, and better-protected electrical systems.

Follow our page to know more about testing equipment.

22/07/2026

✨ Know the Equipment. Understand the Process. | Part 4
Grounding problems are not always visible during daily operation… ⚠️

A system may seem to be working normally, while hidden grounding issues can still create safety risks, leakage current, or future electrical faults.
With the FLUKE 1630-2 Earth Ground Clamp Meter, our engineers can measure earth ground loop resistance without breaking the circuit. ⚡
Why do we use it?
✔️ To test earth ground loop resistance
✔️ To measure leakage current in a non-intrusive way
✔️ To complete ground loop testing without disconnecting the circuit
✔️ To support testing in small spaces and harsh environments
✔️ To verify grounding performance during electrical maintenance
Proper grounding is not just a technical detail.
It is a key part of electrical safety, equipment protection, and reliable facility operation.
Understanding the equipment helps you understand how professional testing can detect hidden risks before they become serious problems.
Follow our page to know more about test

06/07/2026

✨ Know the Equipment. Understand the Process. | Part 3

Electrical connections may look normal from the outside… ⚠️
But without proper contact resistance testing, hidden weak points inside bus-bars, breakers, and connections can lead to overheating, arcing, or equipment failure.

With the *DLRO Digital Micro-Ohmmeter*, our engineers test the contact resistance of bus-bars, breakers, and electrical connections to verify that current can pass safely and efficiently. ⚡

Why do we use it?

✔️ To test contact resistance in bus-bars, breakers, and connections
✔️ To protect breaker internal connections
✔️ To verify connection integrity during operation
✔️ To minimize overheating risks
✔️ To help prevent arcing caused by poor contact

Understanding the equipment helps you understand how proper electrical testing can reveal hidden risks before they become costly failures.

Follow our page to know more about testing equipment and how it is used in real electrical testing services.

Address

26 Abd El Hameed El Deeb Street, Tharwat
Alexandria
002

Opening Hours

Monday	8am - 4pm
Tuesday	8am - 4pm
Wednesday	8am - 4pm
Thursday	8am - 4pm
Sunday	8am - 4pm

Telephone

03-5838275

Website

http://www.apt-engineers.com/

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