Ministry of Electricity & Energy

Egyptian Electricity Holding Company

Pyramid Extra High Voltage Research Center

Pyramid Extra HighVoltage Research Center

• Location: 27 Km Cairo Alex.

Pyramid Extra HighVoltage Research Center

• 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.

Studies on the new technologies

Experiments and researches to develop the electrical network.

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

Includes:

Testing Hall

1- Single phase transformer 200 kV , 10 amp2-Pollution testing room

3-Artificial rain equipment

20kV, 150Hz

Transformer

Pollution Test Room

Artificial rain equipment

Impulse Generator 2400 kV, 180 kJ

Type, Routine and Special Tests

2.Impulse testing equipment.

Impulse Generator 500kV, 2.2 kJ

Type, Routine and Special Tests

3. Partial discharge measurements equipment.

Partial Discharge Hall

Partial Discharge Control Room

Transient over voltage measuring lab.

Mobile GIS testing facility.

Mobile testing unit 100 kV.

Mobile Partial Discharge measuring lab.

Mobile soil thermal receptivity lab.

Type, Routine and Special Tests

4. Mobile testing facilities.

Transient Over voltage measuring Lab

Sequence Control

Data Transfer and Printing

Unit

Receiving Unit

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

Tan delta &capacitance measuring device

Type, Routine and Special Tests

5.Measurement instruments.

Magnetic field measurement device

Calibrator

Energy wave analyzerElectrical wave analyzer

Insulation resistance(Megger)Oil Test

Mechanical Vibration in Transmission lines Conductors measurement instruments.These instruments are used in:

Type, Routine and Special Tests

6. Other facilities.

• 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 HighVoltage Research Center

Mechanical Tensile Machine

up to 100 Tones

Tensile Testing Machine up to 25 kN

Insulator Impact Test Machine

Current transformer 2000 ampShort circuit transformer 30 k amp

Current transformer 4800 amp Current transformer 1000 amp

Current Transformers

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 60 researches were presented in the local and international conferences.

• More than 35 studies were carried out to solve different electrical network problems.

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

Pyramid Extra HighVoltage Research Center

Effect of Pollution on The Performance of Conventional Insulators

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 HighVoltage Research Center

Pyramid Extra HighVoltage 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)

Silicon Rubber Insulator

Pyramid Extra HighVoltage Research Center

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 system2 -Mobile system

Pyramid Extra HighVoltage 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

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.

Pyramid Extra HighVoltage Research Center

Development Projects

1. Short circuit testing lab2. Extra high voltage indoor testing hall up

to 500 kV3. Tower testing laboratory4. Electrical researches building includes:

- fuel cells lab- Super conductivity lab- Environment and pollution lab

- Power electronics lab

- Material studies lab

ISO 9001 -

2000 Certificate

Pyramid Extra HighVoltage Research Center

Thank you for your Concern

Pyramid Extra High Voltage Research Center