NPP915

Measurement Control Unit

Energy & Automation Range

Housed in the same mechanical casing as our NP900 series, the NPP915 offers a unique combination of high accuracy power and energy measurement of class 0.2S with dynamic measurement range up to 250A secondary current. Freely configurable data logging, programmable logic and disturbance recorder features allows for variety of power quality monitoring applications.

The NPP915 communicates using various protocols, including IEC 61850 substation communication standard.

#PowerMonitor

Accuracy class 0.2 according to IEC 62053-22

Frequency independent measurement - patented frequency tracking algorithm guarantees measurement accuracy at 6-75Hz

Power quality analysis- harmonics, THD and disturbance recording

Powerful disturbance recorder

Dynamic measuring range up to 250A secondary – effective disturbance recording when coupled to protection CT

Programmable logic functions

Extensive data logging capability

Communication interfaces	Double Ethernet RJ45 - 100Mbits/s HSR/PRP Double LC fibre Ethernet 100Mbits/s HSR/PRP Double RJ45 Ethernet 100Mbits/s Double ST fibre Ethernet 100Mbits/s RS232 RS485 Serial Optical fibre PP/PG/GP/GG
Communication protocols	DNP 3.0 DNP 3.0 over TCP/IP HSR / PRP IEC 60870-5-101 IEC 60870-5-103 IEC 60870-5-104 IEC 61850 ed1 IEC 61850-8-1 Goose IEC 61850-8-1 MMS Modbus I/O Modbus RTU Modbus TCP/IP SPA - Serial communication
Mesures and operations	Active energy — Active energy index (Ea+, Ea-) Active power — Active power (P) monitoring Apparent power — Apparent power (S) monitoring Currents — Phase currents (IL1, IL2, IL3) Frequency — Frequency monitoring Harmonics — Up to rank 31 Perturbography — 400 Hz to 3,2 kHz (8 to 64 samples per period) Power factor — Power factor monitoring – cos(φ) Q/P — Q/P – tan(φ) monitoring Reactive energy — Reactive energy index (Eq+, Eq-) Reactive power — Reactive power (Q) monitoring THD — Total harmonic distorsion Voltages — Phase voltages Zero-sequence current — Zero-sequence current, high sensitive input
Power supply	19 to 70 Vdc 80 to 265 Vac (50/60 Hz)
Type of option cards	2 x RJ45 100Mb Ethernet & IRIG-B card 2 x RJ45 100MB Ethernet (HSR, PRP) 2 x ST type 100Mb Ethernet & IRIG-B card 4 x outputs 0..24 mA - 1 x input 0..4000 mA card 5x digital output card 8 x RTD input card 8x digital input card Optical fibre LC type 100MB for HSR, PRP RS 232 - Serial fibre Plastic-Plastic type RS 232 Serial fibre - Glass-Glass card RS 232 Serial fibre - Glass-Plastic card RS 232 Serial fibre - Plastic-Glass card
Current inputs	3
Sensitive current inputs	2
Voltage outputs	4
Disturbance records	100
Event logs	10000
Digital inputs	3
Digital outputs	5
Watchdog output	1
Indication LEDs	20
Number of optional modules	3