Products and Services

High Voltage


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Eximprod is the first manufacturer of composite insulators up to 400 kV in Romania, produced in the Ceptura factory, Prahova county.

The company is an expert in producing equipment and implementing turnkey projects, with a portfolio that includes insulators and strings with 110-400 kV composite insulators, 110 kV station post insulators, 110 kV interphase spacers, 123 kV disconnectors, voltage and current transformers and circuit breakers.

All of our equipment has been tested in internationally accredited laboratories and complies with European reference standards.

The high-voltage equipment testing laboratory was completed in 2016 and allows the testing of equipment with a nominal voltage of up to 132 kV.

Our company’s insulators portfolio includes:

      • Composite insulators for 110 – 400 kV overhead lines and substations
      • Composite post insulators for 110 kV disconnectors and busbar support
      • Interphase Spacers for 110 kV overhead line
      • Strings equipped with composite insulators for 110 – 400 kV overhead lines and substations


The 110 kV disconnectors are a competitive solution both for replacing existing equipment as well for new substations.

Types of 110 kV disconnectors:

      • With two/ with one / without earthing blades
      • Three phases/two phases/one phase
      • Parallel mounting/ inline mounting

The complete solution for 110 kV disconnectors retrofitting:

      • Replacement of the disconnector and operating mechanism while  retaining the existing support
      • Replacement of the main blades, the insulators and the operating mechanism and retaining existing support and kinematic
      • Replacement of the main blades and  insulators, while  retaining the existing support, operating mechanism and the kinematic

Eximprod surge arresters are single-phase, outdoor equipment, designed to protect 110 kV lines against overvoltages.

This equipment uses metal oxide varistors.

Eximprod has a portfolio of high-voltage transformers for both current and voltage measurements.

They are single-phase equipment, intended for outdoor installation in 110kV stations and can be used together with electricity meters to record energy consumption.

This is outdoor equipment intended for 110 kV electrical stations that can be ordered both in the three phases and the monophase.

Among the strengths of the product, we mention:

      • Rated current: 2500A \ 3150A (Composite \ Porcelain)
      • Short-circuit breaking current 40kA
      • Short-term allowed current: 40kA, 3s
      • Mechanical endurance class M2
      • Electrical endurance class E2

The laboratory for testing high voltage equipment allows testing of equipment with a rated voltage of up to 145 kV.

It has RBLM (Romanian Bureau of Legal Metrology) accreditation and can issue a metrological verification bulletin for measuring transformers. It is used for testing of own equipment before packing and delivery but also testing instrument transformers from various customers (ABB, Siemens, etc).

Allows testing of equipment with a rated voltage of up to 132 kV: circuit breakers, disconnectors, instrument transformers, surge arresters. We can also perform metrological checks for instrument transformers.