Atmospheric events and on-off surges in the system cause formation of
extreme voltages in electricity networks. ELOPAR surge ARRESTORS are designed to protect distribution transformers, engines, work machines and medium voltage cables
against extreme voltages in the best way.
Advantages of Elopar Polymer Surge Arrestors are;
- Low Protection level - No danger of explosion
- Long protection distance- High energy input capacity
Resistant to aging - Stable characteristics
- Polymer housing- Resistant to contamination
- Safe assembly- Maintenance-free
- High support resistance- Easy to use
- Creeping distance is over 25 mm/kV- Light
Structure and Mode of Operation;
Metal oxide surge arrestors do not contain gaps but contain metal oxide blocks that are placed into a polymer body impermeably. These blocks carry variable resistance feature. In other words, they become conductive as the voltage rises. In case of temporary over voltage, current flows over surge arrestor so that such devices or cables are protected.
These surge arrestors not only have a very good mechanical strength, but also have very good dielectrically smoothness in all surfaces. Furthermore, they have high resistance against contamination arising from atmospheric conditions under the heaviest operating conditions.
ELOPAR Polymer Surge Arrestors are manufactured according to TS EN 60099-4 (IEC 60099-4) standard in order to perform this task in the best way.
Type tests have been performed at ICMET CRAIOVA High Power Laboratory and it has passed from all tests successfully.
- Surge arrestors must be as close as possible to the device to be protected.
- Surge Arrestor grounding must be the same with the system grounding
POLYMER INSULATOR EXTERNAL TYPE MEDIUM VOLTAGE SEPARATORS
Polymer Insulator External type medium voltage separators are manufactured with fuse
and grounded with fuse. They are designed for working at medium voltage networks up to
36 kV. They are manufactured according to TSE standards and TEDAÅ? Specifications.
Separators are three phased and they can be manufactured as double poled monophase
upon request.
Separators are used for separating transmission lines in order to perform repair and revision works at certain parts of medium voltage networks. Therefore separated line can be seen easily. Separation mechanism can be delivered as manual controlled or
drive controlled.
COMPOSITE SILICONE SUSPENSION AND TENSION ISOLATORS
ELOPAR-branded composite silicone isolators are made from silicone rubber material.
Metal bonding elements of isolator is made from forged steel material.
Isolator core is made of reinforced fibreglass. It is ECR type and free of boron.
Silicone thickness on the isolator core is above 3 mm and silicone thickness
on the metal caps is above 5 mm.
Manufactured according to IEC 61109 and IEC 62217 standards, ELOPAR-branded
composite silicone isolators comply with TEDAÅ?-MYD/2009-055 specifications.
All tests for isolators were conducted at EGU-HV Laboratory a.s/Czech Republic,
and isolators passed all tests successfully.
Advantages:
- Resistant to impacts.
- Provides high electrical values.
- Resistant to extremely hot or cold weather and ultraviolet rays of sun.
- No risk of cracking or fraction.
- Water repellent.
- Easy to assembly, mount and transport thanks to its light weight.
- Long-lasting, free of maintenance.
Atmospheric events and on-off surges in the system cause formation of extreme voltages in electricity networks. ELOPAR surge arrestors are designed to protect distribution transformers, engines, work machines and medium voltage cables against extreme voltages in the best way.
Elopar Metal Oxide Surge Arrestors;
- have low protection level- High energy input capacity
- High protection distance- Stable characteristics
- are resistant to aging- Resistant to contamination
- have porcelain body- Maintenance-free
- safely installed- easy to use
- Creeping distance is over 25 mm/kV- High support resistance
Structure and Mode of Operation;
Metal oxide surge arrestors do not contain gaps but contain metal oxide blocks that are placed one on another in a porcelain body. These blocks have variable resistance characteristics. In other words, they become conductive as the voltage rises. In case of temporary over voltage, current flows over surge arrestor so that such
devices or cables are protected. These surge arrestors not only have a very good mechanical strength, but also have very good dielectrically smoothness in
all surfaces. Furthermore, they have high resistance against contamination arising from atmospheric conditions under the heaviest operating conditions.
ELOPAR Porcelain Body Surge Arrestors are manufactured according to TS EN 60099-4 (IEC 60099-4) standard in order to perform this task in the best way. Type tests have been performed at ICMET CRAIOVA High Power Laboratory and it has passed from all tests successfully.
- Surge arrestors must be as close as possible to the device to be protected.
- Surge Arrestor grounding must be the same with the system grounding.
If the surge arrestor is out of service, it causes short circuit in the system. When surge arrestor separator is not used, this short circuit cause the activation of the circuit breaker and blackout of the energy of the system. Surge Arrestor separator prevents energy blackout by cutting grounding connection of the surge arrestor that is
out of service.
Activation of the surge arrestor separator, in other words cutting the
grounding connection means that the Surge Arrestor has lost its
function and must be replaced.
Structure and Mode of Operation;
When the surge arrestor loses its function, separator responds quickly
to the current flow on it.
Voltage decreases on the resistances of the separator and the capsule explodes
by means of the arc occurring
in the small opening inside of it and separates grounding
connection of the surge arrestor.
PORCELAIN INSULATOR EXTERNAL TYPE MEDIUM VOLTAGE SEPARATORS
Porcelain Insulator External type medium voltage separators are manufactured with fuse
and grounded with fuse. They are designed for working at medium voltage networks up to
36 kV. It is TSE certified according to TS EN62271-102 standard and conforms to TEDAÅ?
specification. Separators are three phase and they can be manufactured as double poled mono-phase upon request.
Type tests have been performed at ICMET CRAIOVA High Power Laboratory and it has passed from all tests successfully.
Separators are used for separating transmission lines in order to perform repair works at certain parts of medium voltage networks. Therefore separated line can be seen easily.
Separation mechanism can be delivered as manual controlled or drive controlled.
Terminals are used for branch connections of conductors (cable etc.).
Terminals are manufactured from aluminium material resistance to wearing/corrosion.
Terminal openings are manufactured in a manner that they grasp cable diameters
specified in the standards.
Terminals are capable of grasping and not loosening cables under any weather
condition.
Screws Have high strength. Resistant to wear/corrosion Covered with
galvanize.
Washer Made of aluminium material.
ELOPAR branded terminals are manufactured according to TS12123 standard.
Elopar switch disconnectors are compact, quick-action, highly convenient devices with two separate cutting function at the same phase. Saves space at
panels of use. Fuse and non-fuse type switch disconnectors are manufactured according to TS EN 60947-3, IEC 60947-3 standards and in line with AC 22 B class and they are TSE certified. This feature makes them safe to use at AC-DC systems and engine circuits.
Type tests have been performed at ICMET CRAIOVA High Power Laboratory and it has passed from all tests successfully.
Features of ELOPAR Fuse Switch Disconnectors / Switch Disconnectors:
- High breaking capacity.
- High electrical and mechanical resistance
- Can be shut off in case of short circuit.
- Quick-action independent from the hand movement
- Small size
- Flame and heat resistant body from impermeable thermoset material
- Shutoff-braking option both on the back or front side of the panel
- Adjustment according to the panel depth,
- Lock function,
- Visual inspection of on-off position with the slide queue,
- Proper copper section based on amperage,
- Minimum transresistance and energy loss at contacts
