Increased operating safety, personal protection and reliability of electrical installations are very important factors for everyone in charge of an electrical installation. In addition, there are the requirements for time and cost saving maintenance and repair for both simple control circuits and complex power supplies in industrial plants and in buildings.

Unearthed power supplies (IT systems) monitored by an A-ISOMETER® provide solutions which on the one hand offer comprehensive protection of people and equipment and on the other hand meet the ever-increasing high requirements for availability and cost reduction.

Improved economic efficiency Expensive and unexpected interruptions to operation are avoided Time and costs for maintenance are reduced Weak points in the installation are recognized Investment management is supported

Increased operating reliability No interruption to operation in the event of phase-to-earth fault No control malfunction in the event of insulation faults Electrical installations are kept at a high level of availability Off-line monitoring

Optimised maintenance Insulation deteriorations are early recognized and signalle Automatic localisation of sections of the system with insulation faults Optimised planning of time and personnel resources Central information about the condition of the electrical installation Remote diagnosis via Internet/Ethernet

Increased fire prevention Gradually developing insulation faults are detected at an early stage Arcing faults, a frequent cause of fire, do not occur Areas subject to explosion and fire hazards can be separated from the rest of the system by means of isolating transformers and can be monitored

Increased accident prevention Low touch currents in small and medium sized installations No malfunctions in control circuits of equipment and machines

Higher earthing resistance Higher earthing resistances, for example for mobile power generators, are permissible