Page 65 - catalogue-2024

Energy Quality

Protection Relays / DPR-350

DPR-350

NETWORK ANALYZER & PROTECTION RELAY

DPR-350 is a state of the art network analyzer and directional protection
relay in 96x96mm standard panel dimensions. Thanks to its low depth, it
provides space economy in panels. The large graphic screen allows
simultaneous display of multiple measurements.

The DPR-350 features dual current measurement circuits. It is both a
precise analyzer and a 25Amp protection relay. Protection curves are
selected between various IEC, ANSI, UK and US types. Multiple curves may
be enabled simultaneously.

Through RS-485 comport, the unit is easily connected to Scada and
automation systems.Parameter adjustment is done through USB port.

The unit records all electrical parameters with adjustable period in its 1MB
record memory (optional 16MB). Records are read through Modbus.

The unit offers 4 digital inputs, 3 analog outputs and 2 relay outputs. Analog
outputs can give any measured parameter in 4-20mA format.

FEATURES PROTECTION CURVES ANALYZER MEASUREMENTS
• 128x64 pixel graphic screen • IEC Standard / Very / Extreme Inverse • Phase voltages: V1-V2-V3-U12-U23-U31
• Accurate MV power analyzer (Class 0.5%) • UK Long Term Inverse • Phase currents: I1-I2-I3-Inötr-Ignd
• 4 quadrant energy counters • IEEE Medium / Very / Extreme Inverse • Active power: P1-P2-P3-∑P
• Multiple protection curves • US Normal Inverse, Short Time Inverse • Reactive power: Q1-Q2-Q3-∑Q
• 1MB record memory • Apparent power: S1-S2-S3-∑S
• Self test, internal failure monitoring COMMUNICATIONS • Power factor: cos1-cos2-cos3-∑cos
• Cold reclosure • USB 2.0 PC connection • Frequency: F
• Configurable digital inputs • RS-485 (isolated) 2400-115200 baud • Negative sequence currents and voltages
• Configurable relay outputs • Modbus RTU • Zero sequence currents and voltages
• Configurable analog outputs • IEC60870-5-103 • T32Q value
• 2 independent adjustment sets
• Multiple languages RECORD MEMORY STANDARDS
• All parameters front panel adjustable
• 3 level password protection • 35 x event records with time stamp • EN60255 Electrical Relays
• Setup through USB and RS-485 • 15.000 x periodic records with time stamp • EN61010 Safety Requirements
• Free PC program for setup • Adjustable record period • EN61326 Electromagnetic Compatibility
• Manual & Scada closing and opening • Total 1MB record memory • EN60068 Environmental Conditions
• Firmware upgrade through USB • EN60529 Protection Levels
• Wide supply voltage range: 19-150VDC
• IP65 protection (with optional gasket)
• Low panel depth, only 53mm

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