Products overview

ZMZ-J type intelligent integrated low-voltage filteringcapacitor (hereinafter referred to as product) is designedfor situations where the power grids have certainhamonic content, but the common type power capacito!is failed to run normally, its main characteristics as folowseHigh quality type low-voltage capacitor, oil-free design, high safety;

Adoption of no-surge switching switch, with advancedtechnology,stable and reliable performances;Adoption of special technology and process,effectively suppress high-order harmonic and surgehas obvious efficiency in suppressing harmonic oforder 3, 5,7,9 and above;

Modular structure,fexible combination, convenientcapacity expansion,simple installation, convenientfor maintenance;

Intelligent network,485 communication interfacecan switch in backstage computer, to carry outintegrated management of distribution;

Adoption of decentralized control mode. 200.000times of fault-free switching, with high reliability;Humanized human-machine interface, simple operation,convenient maintenance,it is convenientfor fault shooting on site;It is equipped with SH explosion-proof device andtemperature control device inside, which improvesthe running reliabilityin severe harmonic locations,Outstanding energy-saving efficiency, it effectivelyincreases the power factor, reduces electric powerconsumption and improves the electric energy qualityZMZ-J type intelligent integrated low-voltage filteringcapacitor is mainly applied to locations where theharmonic current is 40% below(such as frequencyconverter, and other equipment), it not only meetsthe requirements ofreactive compensation andimproving power factor, but also eliminates influenceof high -order harmonic to the system, improves the electricity quality.

Our company offers high-quality capacitor banks, including power capacitors, Jard capacitors, and intellect integration capacitors, designed to provide reactive power compensation and improve power factor in both low-voltage and high-voltage systems.

Rated voltage:-220V/-380V:

Voltage deviation: ±20%;

Voltage waveform:sine wave, total distortion rate

not exceed 7%;

Rated frequency: 50Hz±5%;

Power consumption:<2W.

Electrical safety

Electrical clearance,creepage distance,insulationstrength,safety protection,short-circuit strengthsampling and control circuit protection should all bein confommity with the corresponding clauses of standardDL/T842-2003 Ordering specification for low-voltageshunt capacitor installation.

Measurement error

Voltage: <0.5% (within 80~120% of rated voltage);Current:<1%(within 5%~20% of rated current).

Power factor: +1.5%;

Temperature:+1C

Protection error

Voltage:<0.5%;

Current: <1%;

Temperature:+1C.

Time:+0.01s.

Reactive compensation parameters

Switching intervalof capacitor:>10s

11s~10s customized);

Reactive capacity:common compensation≤40kvar,

separate compensation<20kvar:

Online quantity:<120pcs.

Reliability

Control accuracy:100%;

Permissible switching times: 200,000 times;

Attenuation rate of running time of capacitor

capacity:≤1%/year;

Attenuation rate of switching of capacitor

capacity:<0.1%/ten thousand times;

Annual fault rate:<1%.

Product function

Filtering

It effectively suppresses high-order harmonic and surge, forms low-resistancechannel for high-order harmonic, lt absorbs and releases the harmonic, eliminatesinfluence of high-order harmonic to the capacitor, protects circuits and capacitorsfrom overload, prevents capacitors from superheating, insulating medium fromaging, avoids reduction of self healing performance, or reduction of seryice life.No-surge switching

Matched with special capacitor switching switch, no switching surge.Separate-phase compensationCapacitor of each phase of separate-phase compensation type product can beswitched separately, which improves the reactive compensating accuracy, enablesthe three-phase reactive unbalance to be well compensated.MeasurementMeasurement of distribution voltage, current, reactive power, power factor, automaticmeasurement and correction of CT phase and change; measurement of three-phasecurent and inside temperature of each capacitor.

Protection

Quick current switching and over-current protection of circuit; over-voltage andunder-voltage protection of capacitor; over-temperature, open-phase and three-phaseunbalance protection of capacitor, when the temperature of capacitor exceed 65'Cthe whole machine of capacitor would exit operation, which improves its service lifeand guarantees safety running of system.

SignalSwitching state, over, under and compensation state, over and under-voltage statesignals; protection operation type and self-diagnose fault type signals.

Communication

Adoption of RS-485 communication couping between capacitor and controller, whichis convenient for uploading of mass of sampling data as well as infomation exchangingwith externalmonitor terminal, forms system work.Online

Functions of wire network communication and radio network communication.Intelligent network control

It is able to detect and track the reactive variation of system automatically, andswitch in capacitor bank automatically. Cary out switching circularly for capacitorswith same capacitance, and camy out switching according to the vacancy for capacitorswith different capacitance, The capacitor that is switched in earier should exit first.that exits earlier should be switched in first, capacitor whose running temperatureis lower should be switched in first, whose running temperature is higher shouldexit first, when the compensation situation is stable, the capacitors should be switchedin circularly every fifteen minutes, avoid long time running of any one capacitor.

Self-diagnose of faultsIntelligent control element of capacitor will carry out self-diagnose to the runningparameters of the body, once there is self-inspection fault, the whole machineresponses quickly and exit running.