Smart meters,Power quality monitoring,Three-phase power monitoring,Single-phase power monitoring

DTQ900 Three-phase Power Quality Monitor

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DTQ900 three-phase power quality monitor is a simple and reliable high-performance measurement and control devices, with data acquisition and control functions. Can be widely used in power systems, intelligent buildings, control systems, such as low-voltage power distribution automation.

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DTQ900 Three-phase Power Quality Monitor

Applications
Disk meter
Basic Power Quality Analysis
Important measurement of electrical parameters loop
Electricity rates, cost allocation
Programmable switch monitoring and control
Carefully built
Independent design professional, powerful technical strength demonstrated
Industrial devices, first-class quality
Classic design, and strong expansion
Series is complete a variety of models optional
Advanced technology to ensure the surging momentum
■ easy to read backlit LCD screen on the big screen
    Black anti-reflective projection technology, advanced LCD technology to achieve color display that can display multiple values.
■ user-friendly operation
    4 button operation, the menu prompts self-guided, simple operation
■ high harmonic analysis
   Fast powerful DSP processors to achieve 63 times the highest harmonic calculation, monitoring a single harmonic amplitude, can help to troubleshoot the system
■ Mass Memory
    Body mass ferroelectric memory, up to 100 event log, to check local records and the reasons for failure analysis, power-down save more than a decade
■ pluggable terminal
    Plug-type terminal blocks, wiring and maintenance products, very convenient
■ classical structure
    Disk installation, all small, compact design, superior functional design
■ Wide power supply
    Power Supply AC-DC dual switching power supply to meet the wide range of
■ strong expansion
    With 2 analog outputs, 2 analog inputs, 2 pulse output power level, dual RS485 communications, built-in extensions such as profibus-DP

DTQ900 Three-phase Power Quality Monitor Specification

Current measurement (RMS)	Working power supply
CT a side 10000A	Ac voltage 85-265VAC
The CT secondary side 1A or 5A	The power frequency 45-65Hz
Measuring range 0-12KA	Dc voltage 100-300VDC
The input power consumption ≤0.1VA	Powerconsumption ≤2VA
Measurement cycle 1S	Switch input
Accuracy of measurement 0.2%	The number 2-8
Continuous overload 1.2In	Power supply 10-30VDC/custom
Short-time overload 10 in 1 seconds	Minimum width of the signal 10mS
Voltage (RMS) measurement	Minimum width of the signal 10mS
Direct measurement of line voltage 17-700VAC	Alarm and control output
Direct measurement of the phase voltage 10-404VAC	The number 2-4
The frequency 50/60Hz	Relay output capacity 5A 250VAC/30VDC
The input power consumption ≤0.1VA	Analog output
Measurement cycle 1	The number 2
Accuracy of measurement 0.2%	type 4-20mADC
Continuous overload 1.2Vn	Load resistance ≤500∩
Power measurement	communication
Measurement cycle 1S	interface RS485
Accuracy of measurement 0.5%	Protocol 1 Modbus-RTU
Frequency measurement	Modbus communication rate 2400-19200
Measuring range 45-65Hz	Protocol 2 Profibus-DP
Measurement cycle 1S	Profibus communication rate 9.6K-1.5M
Accuracy of measurement 0.1%	Electromagnetic compatibility standards
Electricity metering	The perturbation resistance of electrostatic test IEC 61000-4-2
Active electrical degrees 0.5level	Radiation immunity test IEC 61000-4-3
Degree of reactive power 2level	Conduction rf interference test EN 55022,ClassB
harmonic	Transient pulse test of IEC 61000-4-4,Level 3
Measuring range Up to 63 times	Surge immunity test IEC 61000-4-5,Level 3
Accuracy of measurement 2.0%	Radio frequency radiation interference test EN 55022,ClassB
Pulse output	The installation
The number 2	Overall dimensions 96×96×97
Minimum width of the signal 32Us	Enclosure degree of protection IP30
The highest frequency signal 3000	Panel protection grade IP52
Conditions of use	Terminal type Pull out plug type
Working temperature -10℃-55℃	The voltage and other wire cross section 0.2-2.5㎜2
Storage temperature -20℃-85℃	Current conductor cross-sectional area 0.6-6.0㎜2
Relative humidity ≤95%	The weight ≤500g

Selection Guide

Features		Parameters	DTQ900	DTQ901	DTQ902	DTQ903
Real-time measurement	Phase voltage	V1 V2 V3 VInavg	■	■	■	■
	Line voltage	V11 V12 V13 VIIavg	*	*	*	*
	Current	I1 I2 I3 In Iavg	■	■	■	■
	Active power	P1 P2 P3 Psum	■	■	■	■
	Reactive power	Q1 Q2 Q3 Qsum	■	■	■	■
	Apparent power	S1 S2 S3 Ssum	■	■	■	■
	Power Factor	PF1 PF2 PF3 PF	■	■	■	■
	Frequency	Frequency	■	■	■	■

Further information, pls contact us.

Energy Demand	Degree of active power	Ep_imp Ep_exp Ep_total	■	■	■	■
	VAR	Eq_imp Eq_exp Eq_total	■	■	■	■
	Demand	Dmd_P,Dmd_QDmd_S	—	■	■	■
Power Quality	Voltage unbalance	U_unbl	—	■	■	■
	Current unbalance	I_unbl	—	■	■	■
	Voltage total harmonic content	THD_V1,THD_V2, THD_V3,THD_Vavg	■	■	■	■
	Current total harmonic content	THD_I1,THD_I2, THD_I3,THD_Vavg	■	■	■	■
	Various voltage and current harmonic content	2~31次	■
	Various voltage and current harmonic content	2-63次	—	■	■	■
	Voltage Crest Factor		—	■	■	■
	Phone form factor		—	■	■	■
	Current K factor		—	■	■	■
I/O	DI (passive remote signal input)		—	4	8	8
I/O	DO (relay output)		—	4	2	4

"■" intrinsic function "*" optional feature "-" no such function. ◆ DTQ900:
    +31 times the basic electrical parameters measured THD + RS485
◆ DTQ901:
      Measurement of basic electrical parameters of passive digital input + four + four relay outputs +63 times THD + RS485
◆ DTQ902:
     Measurement of basic electrical parameters of passive digital input + eight + two relay outputs +63 times THD + RS485
◆ DTQ903:
      Measurement of basic electrical parameters of passive digital input + eight + four relay outputs +63 times THD + RS485

* Basic electrical parameters measured, including voltage, current, active power, reactive power, apparent power,
Power factor, frequency, degree of active power, reactive power level

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