Medium-voltage switchgear
In the past, medium-voltage switchgear and controlgear for distribution networks were already exposed to high loads at the primary level. Now, these are becoming even more important due to the expansion of renewable energies. We know this discipline like the back of our hand and plan and develop customised solutions for challenging requirements. Our systems incorporate know-how gained over decades, which we use to ensure optimum power supply, availability and safety.
Our type-tested systems comply with the IEC 62271-200 standards. In addition, some of our systems undergo special tests. For our customers from the industry and energy supply sectors, this offers special protection, which ensures increased safety. This service is supported by our comprehensive range of services from planning, design, development and production, right up to assembly, commissioning and maintenance.
Our single busbar and duplex systems come in a modular design. This way, they can be equipped with different slide-in technologies or fixed installation technology, depending on the type of system. During production, we pay attention to the environmental aspect and refrain from using substances that are harmful to the climate, such as SF6 or other mixed gases.
Basis Block MC 1
The Basis Block MC 1 system is a type-tested, air-insulated, metal-enclosed medium-voltage switchgear for applications in industry and power supply companies. This product series can be deployed flexibly, depending on the variable field variants. We use circuit-breakers, contactors and switch disconnector fuses in fixed-mounted and withdrawable technology. Pressure relief is provided via duct or deflector plates.
| Technical data | |
|---|---|
| Standards and regulations | IEC 62271-200 |
| Operational availability | LSC 2A |
| Partition class | PI |
| Arc fault qualification | IAC AFL |
| Rated voltage | max. 24 kV |
| Rated withstand voltage | max. 50 kV |
| Rated impulse withstand voltage | max. 125 kV |
| Rated current | max. 2000 A |
| Rated short-time withstand current | max. 25 kA |
| Rated surge current | max. 65 kA |
| Rated short-circuit duration | 1s |
Basis Block MC 3
The basic Block MC 3 system satisfies the increased requirements of industry and power supply companies. The type-tested, air-insulated, metal-enclosed medium-voltage switchgear and controlgear has variable field variants. They can be flexibly realised with circuit-breakers, contactors and switch disconnector fuses in withdrawable technology.
The requirements of IEC 62271-200 are supplemented by additional tests for high-altitude installation > 2000 m a.s.l., internal arc fault resistance of the bulkhead compartments and increased climatic ambient conditions.
Pressure relief is provided by absorbers, absorbers + duct, duct or deflector plates.
| Technical data | |
|---|---|
| Standards and regulations | IEC 62271-200 |
| Operational availability | LSC 2B |
| Partition class | PM |
| Arc fault qualification | IAC AFLR |
| Rated voltage | max. 24 kV |
| Rated withstand voltage | max. 50 kV |
| Rated impulse withstand voltage | max. 125 kV |
| Rated current | max. 4000 A |
| Rated short-time withstand current | max. 40 kA |
| Rated surge current | max. 100 kA |
| Rated short-circuit duration | 3s |
Basis Block MC 3 S
The Basis Block MC 3S system is a type-tested, air-insulated, metal-enclosed medium-voltage switchgear and controlgear for applications in industry and power supply companies. This product series can be deployed flexibly, depending on the variable field variants. We use circuit-breakers, contactors and switch disconnector fuses in fixed mounting and a contact system in withdrawable technology. Pressure relief is provided via duct or deflector plates.
| Technical data | |
|---|---|
| Standards and regulations | IEC 62271-200 |
| Operational availability | LSC 2B |
| Partition class | PI |
| Arc fault qualification | IAC AFL |
| Rated voltage | max. 12 kV |
| Rated withstand voltage | max. 28 kV |
| Rated impulse withstand voltage | max. 75 kV |
| Rated current | max. 1250 A |
| Rated short-time withstand current | max. 25 kA |
| Rated surge current | max. 52 kA |
| Rated short-circuit duration | 1s |
