Interfaces: RS485, Ethernet, front USB
4 digital inputs/outputs and 1 relay input
LCD color display
Storage: 512 MB
4 voltage, 4 current inputs and 2 differential current inputs
Harmonic for each order 1 - 128 for U/I.
In conjunction with PQ A module: Measurement and recording of power quality according to DIN EN 50160
The UMD 913 is a powerful, multi-functional, high-precision measuring instrument for panel mounting. It is Class A certified. It measures 4-phase current and voltage in 4-quadrant operation, in class 0.05 and thus the work in class 0.2 s. No matter what happens in energy systems, that
Network analyzers UMD 913 register even the smallest faults or changes. All parameters of the electrical power supply are recorded without gaps and precisely. Detailed quality evaluations make even the smallest deviations visible and provide information on the causes of the faults. The exact time synchronization of the measuring systems by means of GPS or NTP enables the merging of measured data for a comprehensive monitoring of the entire supply network. For the analysis and documentation of the power quality according to self-defined or international standards such as EN 50160, EN 61000-2-2, EN 61000-2-4 or EN 61000-2-12 UMD systems permanently record all network parameters. High storage capacities and effective compression methods allow long-term recordings of up to several years. In addition to the continuous recording of all parameters relevant for power quality, the integrated fault recorder module allows event-triggered recording of transient processes with sampling rates of up to 28.8 kHz. It comes individually or nationwide
Used in conjunction with the key points of all voltage levels. The measured value monitoring is comprehensive, complete and fully automatic.
Measurement:
VOLTAGE (ULL; ULN) U1; U2; U3, UN, U12; U23; U31 CL. 0.05
Current IL1; IL2; IL3; ILN; 2 IRCM Cl. 0.05
Power active/reactive power import/export per phase L1; L2; L3
Effective power P1; P2; P3; PN; 3P Import; Export terminal 0.1
Reactive power Q1, Q2, Q3; QN; 3Q Cl. 1
Apparent power S1; S2 ; S3; SN; 3S Cl. 0.2
Harmonic distortion power D1; D2; D3; DN
Power factor cos phi PF1, PF2, PF3; PFN, PF, cos phi1, cos phi2, cos phi3 cl. 0.5
Symmetry yes
Harmonic voltage THDU1; THDU2; THDU3; THDUN; THDU12; THDU23; THDU31 Cl. 1
Harmonic current THDI1; THDI2; THDI3; THDIN class 1
Harmonic for order 1. To 128. For U/I.
Distortion factor U1fh; U2fh; U3fh; Unfh; I1fh; I2fh; I3fh; Inph
Frequency DC...15 kHz
AC: 10 Hz...15 kHz Cl. 0.02
Active work 4 quadrants Measurement Import/Export per phase; total Cl. 0.2 s.
Reactive work 4 quadrants Measurement Import/Export per phase; total Cl. 2
Flicker yes
Data logger:
Memory (Flash) ULN; ULL; I; P; Q; S; D; THDU; THDI; f; UFH; Status I/O; Energy active/reactive power import/export per phase L1; L2; L3
Voltage dips option: PQ S.
Oscillogram function Option: Go
Other functions:
Logic alarms; limits for above/below U; -I; P; Q; S; not equal to bel. ;THD; cos phi; f;I/O 4 digital inputs/8 digital outputs; 2 analogue inputs/2 analogue outputs; 4 relays 2 A AC
Storage: 512 MB
Recording interval sec; min; h; days; month; year
Communication:
RS485 Modbus; Ethernet 100 Mbps; USB –A.
Electric connection
SUPPLY VOLTAGE U: 85 ÷ 265 V AC/ 90 ÷ 350 V DC
Power consumption 5 VA
Overvoltage category CAT III 300 V
Measuring ranges:
Nominal voltage 690 V AC
Overload 760 V AC
Impedance 6.6 MOhm
Nominal current 5 A
Overcurrent 100 A AC for max. 1 s.
Sampling rate 28.8 kHz
PQ EVALUATION EN 50160, EN 61000-2-2, EN 61000-2-4, EN 61000-2-12
Ambient conditions:<
04053199982004, PQ Plus, 12.08.1109.co, UMD 913, voltage display, panel meter
