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FRIZLEN delivers 39 load resistors in the largest single order in the company's history

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In the summer of 2024, FRIZLEN successfully completed the largest single order in its 110-year history. A total of 39 load resistors from the new FSKZVR series were delivered to a German state authority.

“In the tender, our customer specified a device that could withstand the harsh demands of everyday civil protection services,” says Armin Volzer, Product Manager at FRIZLEN. “To meet these requirements, we designed a suitable, very robust device that is deliberately simple but stable in construction.”

The load resistor of the new type series FSKZVR has a maximum power of 100 kW. This makes it suitable for so-called 50% load tests for power generators up to a maximum of 200 kVA. Partial loads of 10, 20, 20, and 50 kW can be set on the load resistor. In addition, a second load resistor can be connected to the device, allowing a total maximum electrical load of 200 kW to be called up.
“We deliberately opted for a robust contactor circuit in the design and completely dispensed with complicated electronic controls,” says Armin Volzer. “This is because a simple design of the device was very important to us and our customer.”

The new load resistor uses a highly stable stainless steel tubular frame as its supporting element, which can be easily transported by forklift.
Delivering these 39 load resistors in addition to normal production capacity was a particular challenge for FRIZLEN, which had to be overcome in order to fulfill this large order. “I am happy and proud that our FRIZLEN team has mastered this major project so well,” says Managing Director Alexander Horn.

Load resistors are used to load power generators in order to test them regularly. In addition, when a power generator has been operating for a long time in the low-speed range, it should then be run in the upper load range. This reduces wear on the generator, prevents deposits in the exhaust system, and ensures availability in case of an emergency.