Inductive heating and hardening electrically safe

Oven

In the metalworking industry modern induction furnaces are used. By means of coils (inductors) these furnaces induce cyclones inside the metal workpiece to be heated. These furnaces are used, amongst others, for melting, forging and hardening . For the operation of these furnaces, high electrical power is required which is taken from the electricity grid via transformers and special frequency converters (e.g. inverters). The inductors are normally water cooled. This leads to various  potential sources of errors which can disturb or even block production and processing. The solutions have been developed by Bender for monitoring the low insulation level and guarantee fail-safe operation and protection.

Product overview ISOMETER®

Recommended systems for ground-fault detection (ungrounded systems):

Analyzing and reporting:

EN 61557-8
Electrical safety in low voltage distribution systems up to 1 000 v a.c. and 1 500 v d.c. - Equipment for testing, measuring or monitoring of protective measures - Part 8: Insulation monitoring devices for IT systems 

EN 61557-9
Electrical safety in low voltage distribution systems up to 1000 V a.c. and 1500 V d.c. - Equipment for testing, measuring or monitoring of protective measures - Part 9: Equipment for insulation fault location in IT systems

EN 61557-15
Electrical safety in low voltage distribution systems up to 1000 V ac and 1500 V dc - Equipment for testing, measuring or monitoring of protective measures - Part 15: Functional safety requirements for insulation monitoring devices in IT systems and equipment for insulation fault location in IT systems