Ministry of Electricity & Energy
Egyptian Electricity Holding Company
Pyramid Extra High Voltage Research Center
Pyramid Extra High
Voltage Research Center
Pyramid Extra High
Voltage Research Center
• Location: 27 Km Cairo Alex.
• Desert Road
• Year of operation: 1969
Activities
Studies and researches to solve the electrical
network operation problems.
Type, routine and special tests for the
electrical network equipment.
Services for electrical industries sector.
Experiments and researches to develop the
electrical network.
Studies on the new technologies
Type, Routine and Special Tests
Tests and Measurements facilities:1. AC testing equipment.
2. Impulse testing equipment.
3. Partial discharge measurements equipment.
4. Mobile testing facilities.
5. Measurement instruments.
6. Other facilities.
Type, Routine and Special Tests
1. AC testing equipment.
Motor Generator
Cascade Transformers
Up to 2250
kV & 1 amp
single phase
Up to 1300
kV & 1 amp 3
phase
Control Room for Cascade
Transformers
Testing Hall
Includes:
1- Single phase transformer
200 kV , 10 amp
2-Pollution testing room
3-Artificial rain equipment
Transformer
20kV, 150Hz
Pollution Test Room
Artificial rain equipment
Type, Routine and Special Tests
2. Impulse testing equipment.
Impulse Generator 2400 kV, 180 kJ
Impulse Generator 500kV, 2.2 kJ
Type, Routine and Special Tests
3. Partial discharge measurements
equipment.
Partial Discharge Hall
Partial Discharge Control Room
Type, Routine and Special Tests
4. Mobile testing facilities.

Transient over voltage measuring lab.

Mobile GIS testing facility.

Mobile testing unit 100 kV.

Mobile Partial Discharge measuring lab.

Mobile soil thermal receptivity lab.
Transient Over voltage measuring Lab
Receiving
Unit
Data Transfer
and Printing
Unit
Sequence
Control
Mobile GIS Testing Facility
(up to 800kV) using resonant circuit
AC Mobile Testing Unit up to 100kV
Mobil Partial Discharge Measuring Lab
Mobile Soil Thermal Receptivity Lab
Type, Routine and Special Tests
5. Measurement instruments.
Tan delta &capacitance measuring device
Magnetic field measurement device
Calibrator
Electrical wave analyzer
Energy wave analyzer
Oil Test
Insulation resistance
(Megger)
Type, Routine and Special Tests
6. Other facilities.
Mechanical Vibration in Transmission lines
Conductors measurement instruments.
These instruments are used in:
• Measuring and recording amplitude, frequency
and number of mechanical vibrations of
conductor Estimating the expected life time of
conductors.
• Providing the required information to prepare
specifications of vibrations damping instruments
and their installation possibility to increase the
expected life time of conductors.
Pyramid Extra High
Voltage Research Center
Mechanical Tensile Machine
up to 100 Tones
Tensile Testing Machine up to 25 kN
Insulator Impact Test Machine
Current Transformers
Short circuit transformer 30 k amp
Current transformer 2000 amp
Current transformer 4800 amp
Current transformer 1000 amp
Oil Reclamation Machine
Services for Electrical Industries
Sector
Testing of XLPE 220 kV Cable
Cooperation between PEHVRC and
KEMA lab
Researches Carried out by
PEHVRC
Studies and Researches :• More than 35 studies were
carried out to solve different
electrical network problems.
• More than 60 researches were
presented in the local and
international conferences.
Pyramid Extra High
Voltage Research Center

Effect of pollution on the performance of
insulators made of polymers

Effects of sand storms

Washing under tension

Performance of gas insulated equipment

Transient over voltages

Study on Harmonic problems and design of
suitable filters

Increasing the feeding quality in primary
networks
Effect of Pollution on The Performance of
Conventional Insulators
Pyramid Extra High
Voltage Research Center
Studies Helped in:
1- Choosing the most suitable insulators
to the different local pollution levels.
2- Studying the performance of different
polluted insulators under climatic
conditions in Egypt.
3- Drawing a map of pollution densities
all over Egypt.
Pyramid Extra High
Voltage Research Center
Performance of Polymeric Insulators
under chemical pollution conditions
Main points concluded from
researches :• Effects of different types of
pollution on Insulators
performance
• Aging of Insulators subjected
to different types of pollution
(especially chemical
pollution)
Pyramid Extra High
Voltage Research Center
Silicon Rubber Insulator
Flashover characteristics of insulators
under
Sand Storms (Khamassine)
These researches helped in : Recognition of air gaps performance
under the effect of sand storms.
 Effect of sand storms on the
performance of transmission lines.
Washing Under Tension
Running researches now aim to achieve
local systems of washing of energized
insulators by the available facilities
suitable to different environmental
pollution conditions by using:
1- Fixed system
2- Mobile system
Pyramid Extra High
Voltage Research Center
Testing for Other Countries
Carrying out tests on different products
for some other countries such as:•
•
•
•
•
•
Saudi Arabia
Bahrain
Jordan
United Arab Emirates
Syria
Ethiopia
Pyramid Extra High
Voltage Research Center
Local and International Relationships
• Cooperation with local universities.
• Participating in IEC, CIGRE and CIRED.
• PEHVRC published many papers and in the
international scientific conferences like ISH.
• PEHVRC exchanges researches results with
the international laboratories such as CESI
in Italy, KEMA in Holland and other
research centers in USA, Canada and
Japan.
Development Projects
1. Short circuit testing lab
2. Extra high voltage indoor testing hall
up to 500 kV
3. Tower testing laboratory
4. Electrical researches building includes:
-
fuel cells lab
Super conductivity lab
Environment and pollution lab
Power electronics lab
- Material studies lab
Pyramid Extra High
Voltage Research Center
ISO 9001
2000 Certificate
Thank you
for your Concern
Pyramid Extra High Voltage Research Center