A-eberle

Applocations:

REG-D relay for voltage control & transformer monitoring as well as interface modules with binary inputs & outputs and analogue inputs & outputs are used as an optimal solution for control, regulation & monitoring tasks on power transfor- mers.

The following protocols are available:

• IEC 60870 - 5 - 101 / 103 / 104
• IEC 61850
• LON
• DNP 3.0
• Profibus DP
• MODBUS RTU
• SPABUS

Characteristics of the Relay for Voltage Control & Transformer Monitoring

• Large backlit LCD (128 x 128) with all Important information (tap-change position, voltage, etc.)
• Measuring functions (U, I, P, Q, S, cos ¿¿, ¿¿, I sin ¿¿, f )
• Recorder functions (multichannel line recorder)
• Statistics functions (total number of switching operations, switching operations pertap)
• Event recorder (log book)
• Transformer-monitoring functions for recording of the hot-spot temperatureand lifetime consumption
• Freely programmable binary inputs
• Freely programmable binary outputs
• Freely programmable analogue inputs & outputs (mA)
• PT 100 direct input
• Input for tap-change potentiometer (200 ¿¿¿ ... 20 k¿¿¿
• total resistance)
• Control of three winding transformers
• Control of phase-shifting transformers
• Control of single phase transformer bank
• Control of transformers having bi directional power flow
• Interface with Online DGA
• Interface with Fiber Optic Temperature Monitoring System
• Interface with Bushing C & Tan Delta Monitoring System