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Testing Research and Standards
Centre (TRSC)
Public Power Corporation (PPC)
S.A. Greece
Ioannis P. ZOIS (Dr)
Mathematical Physicist
(MSc Cantab, DPhil Oxon)
CERN
Geneva, Switzerland,
16/12/2016
 The Testing Research & Standards Center (TRSC) is a
Support Unit that belongs to the Support Operations
Division of the Public Power Corporation (PPC) S.A.
Greece.
 TRSC hosts the central labs and the research centre of
PPC S.A. Group.
 Its activities include the provision of services not only
to the units of PPC Group but also to third parties (like
the wider Public Sector, local and foreign Industries
and craft industries).
TRSC services include:
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tests in its laboratories
research
accreditations
inspections in the areas of PPC Group
instrument calibration
specialised studies
applications and analyses
specialised consultation studies
inspections for quality control of existing and under purchasing
PPC equipment.
 TRSC Labs can perform about 600 different tests
according to European and International
standards.
 TRSC Labs are accredited by the Hellenic
Accreditation System (E.SY.D) according to ISO
17020 and ISO 17025 standards. ESYD is a
founding member of the European co-operation
for Accreditation (EA).
 TRSC employs high-calibre scientific staff, mainly
coming from the Engineering and Exact Sciences,
along with the relevant technicians.
 14 of TRSC staff-members (which corresponds to
15% of its staff) hold a PhD Degree in Science and
Engineering.
TRSC has 14 well-equipped labs divided in 4
groups:
 A. Electrical Group (4 Labs)
 B. Mechanical & Metallourgy Group (3 Labs)
 C. Chemistry Group (3 Labs)
 D. Civil Engineering Group (2 Labs)
 E. Independent Labs (Photometry and Rising
Temperature)
A. Electrical Group Labs
1.
High Power Lab (unique in Greece)
Performs Short Circuit tests, breaking capacity and interrupting
performance tests on a variety of items (power, voltage and current
transformers, switchgear, controlgear, cables, earthing equipment, fuses,
relays etc) using a specially designed Surge-Power Generator 400 MVA –
24 kV – 9,6 kA.
2.
High Voltage & Dielectric Testing Lab
Performs Dielectric Tests in High Voltage, Medium Voltage and Low
Voltage Electrical Materials. Main tests include: Lightning Impulse Voltage
tests, Power frequency voltage tests up to 300kV under dry or wet
conditions, Dielectric tests at variable humidity and temperature, under
water immersion and under pollution, Direct current tests up to 200kV
and induced voltage tests (200Hz) up to 1kV, Partial discharges, radio
interference voltage, power loss, tanδ, capacitance measurements etc.
3. Electrical Tests and Measurements Lab
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Performs numerous tests and measurements in Medium Voltage
and Low Voltage Electrical Materials including:
Tests on Low Voltage electrical equipment (fuses, fuse bases,
metering boxes, junction boxes, fuse boxes, relays, etc.).
Tests of tripping characteristic of micro circuit breaker.
Degree of Protection (IP) code: any material
Capacity check of lead-acid batteries.
All kinds of electrical measurements (electrical resistance, voltage,
power, resistance, Insulating properties tests, conductivity, etc.)
Earthing resistance measurements.
Electrical aging tests to LV components.
4. Metrology Lab
Performs calibration in electric quantities: AC Voltage, AC Current,
DC Voltage, DC Current, DC resistance, Megohm meters, Grounding
measures, Shunts, etc.
B. Mechanical & Metallourgy Group Labs
1. Metallography Lab
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Conducts:
Microstructure characterization
Steel identification (in combination with chemical analyses and
mechanical properties studies)
Image analysis (eg grain size, phase fraction and particle size
measurements)
Creep stage evaluation (long-time experience from power plant
materials, creep evaluation constitutes a major area of
expertise).
Macro-structure characterization (eg. forging and extrusion
products)
Failure analysis studies.
2. Applied Physics Lab
Its highly trained and certified by ISO 9712, PCN, SNT-TC-1A staff with many years
of experience and expertise perform:
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Non-destructive testing (NDT):
Visual inspection
Liquid penetrant testing
Magnetic particle inspection
Industrial radiography
Ultrasonic testing
Eddy current testing
Ultrasonic thickness measurement
Infrared thermography
2.Applied Physics Lab (continued)
II. Paint and coating inspection:
Cross hatch adhesion test
Paint / coating thickness measurement
Pull off adhesion test
III. Rubber physical properties:
Specific gravity / Density
Abrasion resistance
Determination of indentation hardness
Rebound resilience of rubber
IV. Porosity test on porcelain insulators
3. Mechanical Testing Lab
It performs Destructive Tests like:
 Tensile tests in metallic and plastic specimens
 Bending tests in metallic and plastic specimens
 Impact tests in metallic and plastic specimens
 Compression tests in metallic and plastic specimens
 Hydraulic tests in vessels under pressure, pumps e.t.c.
C. Chemistry Group
1. Analytical Chemistry Lab
 It conducts elemental analyses in waters, wastewaters,
solid wastes, lignites, ashes, soils.
 It particulates matter collected from ambient air and
alloys.
 It determines metals in liquid fuels and lubricants.
2. Fuels and Lubricants Lab
 Carries out quality control analysis on fuel oil (heavy fuel
and diesel oil).
 Performs physicochemical characteristics analysis on
industrial lubricating oils (turbine, hydraulic systems,
gearbox, internal combustion engine oils, etc.) and grease.
3. Laboratory of Environmental Chemistry and Special
Materials.
It conducts:
 physicochemical analyses of water, wastewater and eluates of
ashes, sludges and soils.
 tests on materials of electrical and industrial equipment
(corrosion and aging tests, tests on coatings e.t.c.)
D. Civil Engineering Group
1. Concrete Lab
 Provides support concerning the conformity of structure
materials in civil works: aggregates, cement, concrete, grout,
flying ashes.
 Covers concrete and durability technology issues that
determine the quality of modern construction (special
concretes, special materials such as refractory materials,
bentonites, etc.).
2. Soil Mechanics Lab.
It performs the following types of tests:
 Soil classification tests (moisture content, particle size sieve analysis,
particle size analysis using hydrometer, Atterberg limits, specific gravity)
 Soil mechanical tests (unconfined compression tests, triaxial tests, direct
shear tests, residual shear strength with the ring shear apparatus,
consolidation tests, etc.)
 Soil compaction tests (standard and modified Proctor, California Bearing
Ratio CBR)
E. Independent Labs
1. The Rising Temperature Lab
Conducts rising temperature tests of various types of
equipment (eg transformers, switch & control gears,
disconnectors, suspension clumps etc) with electric currents
up to several kA.
2. The Photometry Lab
 Undertakes the detection and verification of
phototechnical characteristics in all kinds of lamps and
luminaries.
 Carries out on-site measurements of luminaries
phototechnical result.
 Undertakes the phototechnical studies and research of
indoor and outdoor areas aiming at energy saving and
rational use of lighting according to international
standards.
Research at TRSC
 TRSC participates in various research projects
funded by national and european sources (eg
Horizon 2020).
 Currrent Research Projects include:
 The development of new ultra sound techniques for
NDT’s.
 Bioengineering in bacteria which can turn CO2 to
biodiesel and other useful chemicals.
 Ceramic coatings on critical parts facing high thermal
and mechanical strain.
 Studies on the effects of solar activity onto power
grids.
Research at TRSC (continued)
 Research at TRSC covers also more mathematically
oriented topics like:
 Generalisations of the Stone-Weierstrass theorem
(Zois, ,I.P.: «Orthogonal polynomial algebras which
are dense in the algebra of continuous functions on a
manifold», Jour. K-Theory, 17.4, 2015).
 New quantum invariants on low dimensional
manifolds (Zois, I.P.: «Noncommutative Topological
Quantum Field Theories on 3-manifolds», Commun.
Math. Phys. 210.1, 2016).
The mother company PPC S.A. Greece:
PPC was established in 1950 and it is the largest
electricity producer and supplier in Greece (in fact PPC
is the largest corporation in the country). It owns and
operates lignite mines, steam electric plants (using
lignite, natural gas and diesel as fuel) along with
hydroelectric power plants, wind parks, photovoltaic
parks and other clean energy production methods like
biomass, geothermal energy etc.
PPC (mother company) in numbers:
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12,500 MW installed power capacity
35,000 GWh net energy output
9 mines
15 steam electric power plants (plus several more on islands).
16 hydroelectric power plants
11,000 employees.
7.5 million connections
10 million customers
6 billion Euro annual turnover
17.3 billion Euro total assets
The PPC Group
 The PPC Group consists of:
 PPC S.A. (mother company)
 IPTO S.A. (Independent Power Transmission
Operator, currently 100% subsidiary company of
PPC).
 HEDNO S.A. (Hellenic Electricity Distribution
Network Operator, currently 100% subsidiary
company of PPC).
 PPC Renewables S.A. (currently 100% subsidiary
company of PPC, installed power capacity 300MW
from wind parks, photovoltaics, biomass, geothermy
etc.)
For more info please visit the TRSC official
website:
http://www.kdep.gr/index.php?lang=en
Thank you very much for your attention