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概述－－HVC 高壓自動無功電壓綜合調節裝置是一種根據電網及負荷狀況分級自動調節電壓，無功的裝置。其特點是：調節系統由微機監測，智能判斷，優化控制，便于聯網；無功補償系統為模塊結構，分級任選，配置靈活。該成套裝置推廣應用后，對推進電力系統自動化，保證供電質量減少線路損耗，節約電能，提高輸配電系統的輸送容量，運行效率和經濟效益發揮著重要作用。
工作原理：
HVC高壓自動無功電壓綜合調節裝置根據電網電壓和功率因數的實際運行水平,自動投入最佳容量的電容器和調節有載調壓變壓器分接頭,從而實現對系統電壓和無功的綜合調控,達到使系統電壓合格率為 100%,功率因數大于 0.9的目的。控制器實現全自動化菜單式操作,具有良好的人機界面,并具有串行通訊接口,實現遠端遙信,遙測,遙控。
技術特征:
*自動補償負荷無功功率，提高負荷功率因數
*調節有載調壓分接頭，穩定負荷電壓
*降低網損，高效節能
*抑制系統諧波
*減小無功電流，增加變壓器帶載容量
*自動投切與調節，無需人工干預
*控制器快速響應
*補償器保護措施齊全，自動化程度高，能在外部故障或停電時
*自動退出，送電后自動恢復運行
主要功能:
*在高壓側對系統進行無功補償
*綜合調節功
*顯示功能
*過電壓，欠電壓閉鎖功能
*自動，手動操作功能
*統計與記錄功能
*完善的保護功能
*參數與定制現場整定功能
*保證設備動作次數最少化
*通訊功能
技術參數:
* 系統標稱電壓 :6kv,10kv
* 裝置最高工作電壓 :7.2kv,12kv
* 額定頻率 :50HZ
* 并聯電容器模塊推薦值 柜式 :150 300 600 900 1000kvar
* 并聯電抗器模塊 電抗率 :1%,4. 5-6%,13%
* 相數： 3
* 無功補償模塊內部結線方式 :Y
* 測量誤差：電壓≤ 0.2% 電流 ≤ 0.5% 功率因數≤ 2%
* 電壓整定范圍： 5%
* 功率因數 0.9 以上
結構特點:(本裝置由測量系統，控制模塊，電容器組及執行機構等單元組合而成，并具有如下特點)
* 積木式
* 模塊系列化
* 主線路設置電容器專用母線接入方式
應用場合:
*用電企業6kv,10kv 配電裝置無功功率補償
*高壓異步電機就地無功功率補償
*居民小區電力負荷的動態無功功率補償
*6kv,10kv 電網無功功率補償
HVC High Voltage Automatic Reactive Power Compensator Synthetic Adjusting Equipment
INTRODUCTION:
HVC-High Voltage automatic reactive power compensator synthetic adjusting equipment is an automatic facility which can adjust voltage and reactive power by different levels according to the power network and load condition. Its characteristic: adjusting by computers、intelligent determining、optimum controlling and convenience connecting. Reactive power compensating system is a model structure, chosen by different levels and distributes freely. the equipment which had been put into the market has well benefit in promoting power system automatically, ensuring the quality of the power supply, reducing the power line loss and saving the energy；It also can promote transmitting capacity、efficiency and economy.
WORKING PRINCIPLE:
According to the power netting and power factors' practical working level, especially to automatic controlling the optimum capacity and adjusting the transformers' joints, HVC-High Voltage automatic reactive power compensator synthetic adjusting equipment put synthetic controlling the system voltage and reactive power into reality, reaching the certification ration of 100%, and the power factor is over 0.9. The controller can present the Chinese menu with well connection to the people. It also provides the parallel communication interface in realizing communication, measurement and controlling in long distance.
TECHNIQUE CHARACTERS:
** Auto-compensate load reactive power, increase load power factor
** Adjust loading voltage joints， stable the load voltage
** Reduce the grid loss, save energy effectively
** Control systematic harmonic
** Reduce reactive currents, increase converter's capacity with loads
** Auto input/output and adjust, need inartificial disturb
** Controller respond simultaneously
** Various protecting measure ways by compensator, high level automation, auto-recovering after breakdown
** Auto-quiting, auto-resume running after electricity transmiting
MAIN FUNCTION:
* System reactive power compensating from the high voltage side
* Synthetic adjusting
* Display
* Over voltage、short voltage close
* Automatic and manual operating
* Statistics and record
* Perfect protection
* Parameters and stable parameters changing at the scene
* Ensure the acting minimum of the equipment
* Communication
TECHNIQUE PARAMETERS:
* System standard voltage: 6kv,10kv
* Load highest working voltage: 7.2kv,12kv
* Rated frequency: 50HZ
* Recommend value of parallel capacitor model (cupboard): 150 300 600 900 1000kvar
* Reactance rating of the parallel capacitor model: 1%,4. 5-6%,13%
* Phase number:3
* Internal connecting way of reactive power model: Y
* Measuring error: voltage ≤ + 0.2%, current≤+ 0.5%, power factor≤+ 2%
* The voltage rectified range: + 5%
* Powe r factor: above 0.9
STRUCTURE CHARACTERS:
The facility consists of measure system, controlling model, capacitor banks, and operating units etc. and the characters are as follows:
* Building block-like
* Modelling series
* The special bus bar connection to the main circuit capacitor
APPLIED OCCASION:
* Reactive power factor compensating to the power arranging devices 6kv, 10kv in the power consuming enterprise
* Reactive power factor compensating for the high-voltage asynchronizing motor on the spot
* Dynamic reactive power factor compensating for the denizen district power load
* Reactive power factor compensting for the power grids 6kv,10kv
ORDERING NOTICE:
* Controlling method: TWK or TDK
* Determine the connecting method of the primary side
* The regulating range of voltage and reactive power
* Information about converter's switch with load
* Reactive power controlling scheme
* Reactance rating of the series reactor
* Fixing occasions, location reserved, space and size
* The size and color of cupboard
* Other specific demands
SUPPORTING TECHNIQUE:
With the rapid development and wide application of technology in power and electricity, the variety, quality and proportion of non-linear load's type are increasing rapidly, which cause the waveform distortion in the power system, harmonic current has serious effect on power devices, power users and communicating circuits. Harmonic currents can cause overmuch current and resonance amplification, keep the devices from running safely. It commonly occurs the devices damaged. Harmonic source is becoming a problem at the edge of enterprises and unable to be resolved.
In order to keep the compensating cupboard operate normally, the customers have to give a clear indication of not only the product's type chosen, yet the content and related data about the load's harmonic currents. Our company posses test device of the power grids harmonic waveform. Experts can be sent to the spot to measure and analysis through software to simulate and compute. In recent years, the experienced experts have provided various design schemes according to actual circumstances, accurate data analysis, optimum resolving schemes and strong productivity. The high-tech products of Weihan are the optimum choices to various enterprise orders in compensating cupboards field.
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中國電子商務服務聯盟成員單位 瓊ICP備