Summary

HKKIC6 series resistance harmonic type intelligent capacitor is a (O type) or (Y) pressure power capacitor as the main body, the software and hardware technology, the micro sensor technology, microelectronics miniature network technology and electrical appliance manufacturing technology such as the latest technological achievements, the intellectualization, realize the low voltage reactive power compensation function and reliable to work and make it convenient zero cutting and series of functions such as protection, measurement, signal, and online, is the low voltage reactive power automatic compensation filter technology breakthrough, is mainly used in harmonic is very serious situation of reactive power com pensation, running reliable, does not produce resonance, to the harmonic amplification effect, It has the function of absorbing and eliminating harmonics to some extent. Among them, the products connected with 7% reactor are used in the electrical environment with the main harmonic of 5 times, and the products connected with 14% reactor are used in the electrical environment with the harmonic of 3 times.

The products are mainly applicable to chemical industry, building materials, pa permaking, textile, coal, electric power, telecommunications, aluminum, shipping port, tobacco, brewing, automobile manufacturing, precision electronics, precision machinery and other industrial fields. At the same time, it can also be used in the power supply system of communication industry, stock exchange power supply system, standby power system of airport and port, large medical  system, all kinds of UPS generator sets, exhibition venues, com mercial office buildings and other commercial power systems.

Wiring diagram

1. Intelligent components

All electronic components in intelligent components adopt wide temperature type and industrial grade, which can adapt to the harsh environment with large temperature change and serious electromagnetic interference, and can work reliably without interruption for a long time.

2. Zero-crossing switch synchronization technology based on mechanical contact

The company summarizes the characteristics and disadvantages of mechanical contactless thyristors, contactless thyristors and composite switches. Combined with years of development and practical operation experience, the company independently develops a new generation and USES microelectronic software and hardware technology to effectively control mechanical electromagnetic relay contacts. The synchronous switch technology of low voltage power capacitor based on mechanical contact is realized. When the ac voltage of the two ends of the contact is zero, the two ends of the contact is closed when the AC current is zero. Avoid the impact of the inrush current on the system voltage when the capacitor is put in. Reduce equipment loss and increase capacitor service life.

3. Dry series reactor

The dry series reactor is made of imported material with high magnetic flux, light weight, small size, low power consumption, low temperature rise and low noise. It is equipped with thermal relays to monitor its temperature and send signals when the temperature exceeds the set temperature.

4. Miniature current sampling transformer

The capacitor current sampling adopts the miniature transformer with perm alloy as the core, which has high linearity, good frequency characteristic and small difference, ensuring the accuracy and stability of current and current type protection.

5. Quick circuit breaker

The fast circuit breaker is a miniature circuit breaker that is disconnected within 100ms at 10 times the rated current. It is used for the general protection of current velocity cutting to avoid jumping the upper switch. It also ACTS as the power access terminal and the power main switch.

6. Product appearance drawing

Product working principle

The product is composed of intelligent components, zero switch, current sampling, temperature sampling, dry series reactor and low voltage filter power capacitor. The following figure is the working principle block diagram of the product series in the phase compensation mode.

Types of meaning

Main functions and features of the p roduct

1. Main functions of the product

Suppress harmonics function: effectively suppress high harmonics and incurrent, reject harmonics to be into the capacitor device. It can eliminate the influence of high harmonics on capacitor, protect circuit and capacitor from overloadStop capacitor overheat, insulation medium aging, self-healing performance decline, service life is reduced.

Synchronous switching function: with the special controller, quick response time. It can realize dynamic tracking and accurately switch when the current and voltage is zero, which is less affected by harmonics.

Phase splitting compensation function: phase splitting compensation product, each phase capacitor can be switched separately to improve the accuracy of reactive compensation, so that the three phase reactive power imbalance can be well compensated.

Measuring functions: distribution voltage, current, reactive power, power factor measurement, CT phase and variable ratio automatic measurement, calibration; Three - phase current and internal temperature measurement for each capacitor.

Protection function: circuit current cutting, over current protection; Capacitor overvoltage and undervoltage protection; Capacitor overtemperature, broken phase, three-phase unbalance protection, when the capacitor temperature exceeds 65 degrees,electricity

Container complete machine return protection, improve the service life, ensure the safe operation of the system.Signal function: capacitor switching state, over undercomplement state, over undervoltage state signal; Protect action type, self-diagnose fault type signal.

Communication function: RS -485 communication connection is adopted between the capacitor and the controller to facilitate the uploading of a large number of sampled data and information exchange with the peripheral monitoring terminal, which constitutes the work of the system.

Intelligent network control: Automatic detection and tracking of reactive power changes in the system, automatic switching capacitor Banks. Capacitors of the same capacity according to the principle of cycle switching, capacitors of different capacities according toAppropriate complement principle of cutting. Capacitor first cast, first back, first cast; The capacitor is put in first if the operating temperature is low, and out first if the temperature is high. When the compensation condition is constant, the capacitor is rotated and cut every period of time to avoid the single capacitor being put into operation for a long time.

Fault self- diagnosis function: capacitor intelligent control elements can self- diagnose the operating parameters of individual phases of the body, in case of self-test fault, the machine responds quickly and exits the operation.

2. Main features of the product

High quality industrial low voltage filter power capacitor, high safety;

Synchronous switching technology, advanced technology, stable and reliable performance;

Closed-loop circuit, magnetic circuit is not saturated, no energy consumption, no electromagnetic radiation;

Special technology and process can be used to effectively suppress the high harmonics and inrush current, more than 3-13 harmonic suppression effect is obvious;

Modular structure, flexible combination, easy capacity expansion, simple installation, easy maintenance;

Intelligent network, 485 communication interface can be connected to the background computer for comprehensive distribution

management;

Decentralized control mode, 1 million failure-free switching, high reliability;

Interface display in Chinese, easy to operate, easy to maintain, easy to find on-site fault;

SH explosion-proof device and temperature control device are added to improve the reliability of operation in severe harmonic situations;

Energy-saving effect is remarkable, effectively improve the power factor, reduce power consumption, improve power quality.

Appearance and installation dimensions

Note: The standard configuration of the reactance of the above products is P7 and P14. Other reactance rates can be selected according to customer requirements. The table only lists the commonly used product models and specifications, other models can be consulted. Reactance P14 the rated voltage of the co-supplement product is 525V, and the rated voltage of the sub-supplement product is 300V.

Schematic diagram of typical electrical connection in cabinet

1. Wiring diagram of mixed complement (co-complement + sub-complement) + controller scheme

2. Wiring diagram of co-complement + controller scheme

Technical specifications of the product

1.Environmental conditions

Ambient temperature: -40℃ ~40℃

Relative humidity: 40℃, 20-90%

Altitude:≤2000m

2. Electrical Safety

Clearance and creepage distance, dielectric strength, safety protection, short-circuit strength, use and control circuit protection all meet the requirements of the corresponding clauses in the Electric Power Industry Standard of the People's Republic of China DL/T842-2003 "Conditions for Use of Low-Voltage Shunt Capacitors".

3. Reactive power compensation parameters

Capacitor switching interval:>10s

Reactive power capacity: single ≤50Kvar (three-phase), ≤30Kvar (split-phase);

Online: ≤31 units

4. Measurement error

Voltage: ≤0.5% (in the range of 80~120% rated voltage)

Current:≤1%

Temperature:±1℃

5. Power Conditions

Rated voltage: ~220V/380v

Voltage deviation: ±20%

Power frequency: 47.5~52.5Hz

Power consumption: <5W (when the capacitor is removed)

6. Reliability parameters

Control accuracy: 100%

Control allowable times: 1 million times

Attenuation rate of capacitor capacity running time: ≤1%/year

Capacitor capacity switching attenuation rate: ≤0.1%/10,000 times

Annual failure rate: ≤0.1%

Product design application scheme

1. Electrical symbols of products

2. Product terminal schematic

Electrical connection and wiring diagram should be applied to the product

1. Wiring requirements of products

Connection wire specification of the product and the power end:

Time wiring : power cord, full amount of standard multi-conductor copper wire;

Secondary wiring: connect the indicator light to the controller;

Data line: Data line between products;

Grounding wire: the product is connected to the external grounding end with a single copper conductor.

2. Electrical wiring requirements

The production of the power cord is as shown in the figure: The power cord must be tightened, and the power cord must be strained to prove it is very firm, otherwise it will cause excessive heat and damage the product.

Connection between controller and product: Secondary connection shall be connected from the first or last external 485 port of  the unit product to the corresponding controller 485 port, as shown in the figure below:

When there is an external indicator light, select the state indicator of the appropriate voltage level according to the capacitance model, and the total complement capacitor indicator is 380V; The indicator light of the supplementary capacitor is 220V. The terminal 5 of the common supplementary capacitor is connected to one indicator light, and the other end of the light must be connected to UB. Supplementary capacitor terminals 3, 4 and 5 shall be connected to the indicator light respectively, and the other end of the light shall be connected to the zero line UN(product indicators shall not be short connected, and one light shall not be used together).

Online attachment
RS-485 online plug

Product and product networking and current signal acquisition line, using the company's configuration of plug data line.

The earthing terminal is on the back of the product (marked), and the earthing terminal shall be reliably connected to the external earthing terminal.