KRIWAN products
Protection Relays
Motor Protection Relay
Motor protection based on PTC sensors represents one of the most effective and reliable protective measures against thermal overload of electrical machines. The protection device consists of the INT69 motor protector and the PTC sensors. Due to its compact design, the INT69 is suitable for installation in electrical devices or the terminal box of electrical machines.
Voltage and Current Relays
With the INT69 UY Diagnose device family, KRIWAN offers reliable and user-friendly solutions for protecting and monitoring high-precision and sensitive electrical components, drives and electrical loads. The causes of malfunctions and resulting damage to electrical equipment are often due to increased current consumption, incorrect phase sequence or a deviating supply voltage. The new generation of KRIWAN INT69 UY Diagnose voltage monitors ensure trouble-free and safe operation of the plant, are fully networkable and thus provide valuable data for condition monitoring. The KRIWAN INT89 I Diagnose current relay is used in combination with the KRIWAN INT185 current transformer for current monitoring. Fast-response current monitoring increases the availability and service life of a machine.
Protection Relays - Multifunctional Relays for Machines
Current Transformers
The INT185 current transformer is used for current measurement of machines and equipment (e.g. motors of pumps). It is connected to the KRIWAN protective relays that have a current transformer input. The evaluation takes place in the KRIWAN protection relays. The small dimensions facilitate installation in the control cabinet. The current transformer is available in different versions, e.g. with measuring range up to 100A or up to 250A and with stranded wires with ferrules or with screw terminals.