1. Installation and operation of transmission and distribution networks, main distribution and
switching equipment
The main activity of EH-SZER Kft. includes installation and operation of various electric networks.
EHSZER Kft., as the legal successor of companies performing investments of electricity supply
networks, having nearly 100 years of professional culture and experience, continuously trained
experts, machines and tools of its own property, undertakes the construction and putting into
operation of the following investments:

Transmission and distribution networks
- 120 kV networks
- 120 kV overhead lines
- 120 kV cable network

Medium voltage networks
- 35 kV and 20 kV network of overhead lines and consumer connections
- 20 kV and 10 kV cable network and consumer connections

Low voltage networks
- Bare aerial cable networks
- Insulated aerial cable networks
- Low voltage ground cable network
- Public lighting
- Space lighting
- Decorative lighting
- Optical light cable networks

Medium and low voltage main distribution
and switching equipment.

2. Installation of combined heat and electric power generation equipment
Combined heat and electric power generation technology (cogeneration)
is an important tool of the efficient infrastructure
management, by which electric energy or mechanical energy
is generated and the produced heat is utilised.

Based on its professional experience obtained in the field of
co-generation EH-SZER Kft. undertakes to install and put
into operation electric equipment in connection with new
heat and electric power generation units.

During recent years EH-SZER Kft. has participated in the
installation works of gas engines on various occasions.
Regarding its commitments it has always been a primary
viewpoint to employ, among the others, several subcontractors
in order to always observe the deadlines, and
satisfy the customer needs.

3. Additional measuring and energy management services
For its Clients of T-tariff and higher base tariff EH-SZER Kft. offers its complex, modular type product package which is closely related to the energy management services
(performance and idle management systems, counselling on energy management).

Contents of the service package is as follows:
- Counselling on energy management (on the basis of the data provided by the client, and assessment of the actual situation, and data related to the measuring tasks, and measured by the power supply companies)
- Design, installation, operation, maintenance and pre-financing of performance management, idle management systems
- Temporary measuring (measuring tasks related to counselling on energy management)
- Providing pulse signals (for online intervention/performance management/ and gathering information)
- Ad-hoc and regular reading of load curve, consumption and performance data, and the transfer thereof
- Design, installation, operation, maintenance, pre-financing of internal measuring systems,
consumption data collection systems.

With the help of the products the Clients can get acquainted with their receiving habits, get information required for technical advice and interventions, whereby they will be able to improve their performance management, efficiency, and reduce their energy costs.

4. Technical services related to medium/low voltage transformers
EH-SZER Kft. provides the following services for its Clients in the interest of the smooth electric energy supply:
Individual preventive maintenance:
Maintenance performed on the basis of the order of the Client, with the aim to preserve the good working condition of the transformer station.
Installation of temporary transformer station:
Installation, putting into operation and operation of a temporary transformer station for technology requiring electric energy, and temporarily operated at the premises, construction site of the Client.
Transformer renting:
In case of the transformer’s breakdown a transformer of identical parameters is provided for the period of the repair.
Replacing, putting into operation of transformer:
Replacing and putting into operation of a transformer in any technological environment in case of breakdown or changes of the performance.
Repair of transformer:
Having the transformers repaired by observing the deadlines assumed.

5. Operation of medium voltage consumer networks
In the possession of professional experience obtained by several generations EH-SZER Kft. makes an offer for operation for its Clients having medium voltage network, and medium/low voltage transformer station.

The complex offer for operation includes the following services:
Maintenance:
Planned intervention with the aim of preserving the good working condition of the electric networks and the network equipment.
Operation:
Performing regular assessment of the actual state, qualification of the network and operational repairs required for the continuous and safe operation.
Availability in case of disturbance, and prevention:
Providing on-going availability on the specific network. Prevention and elimination of unforeseeable, unexpected events and the consequences thereof.
Availability of medium voltage transformer:
In case of necessity a transformer is provided from the stock of EH-SZER KFt. for the duration of the repairing period of the transformer broken down.

The service is provided against a lump sum as set out in the contract, which makes an efficient cost management possible.

EH-SZER Kft. offers the complex service, however individual elements of the service are undertaken, too, if it is so required (under specified conditions).

6. Other network services (collective package)
The collective package includes the following service elements related to measurement and connection:
Construction and repairing of individual low and medium voltage connection lines
- Construction and purring into operation of singleand multiphase connection lines.
- Error correction

Relocation of a meter equipment

Replacement of measuring transformers
- Replacement of measuring transformers with outdated calibration or out of order, used at medium or high voltage receiving points.
Standardization of connectors
- Replacement of old connectors which do not meet the quality standards and technical requirements of connectors.
Supervision of a meter at the site
- In case the malfunction of the meter is suspected, the calibration status of the meter is verified upon the request of the Client at the site with a mobile calibration instrument.
Verification of a meter by the National Office of Measures or at a measuring station
- In case the malfunction of the meter is suspected EH-SZER Kft.
will deliver the meter to its measuring station or the regional
centre of the National Office Measures upon the request of
the Client, and thereafter the measuring record of the meter’s
calibration status shall be provided to the consumer.