产品概述 Product description

PSTNc型无功功率自动补偿控制器，适用于低压配电系统电容补偿装置的自动调节，使功率因数达到用户预定状态，提高电力变压器的利用效率，减少线损，改善供电的电力质量。

PSTNc   reactive   power   automatic   compensating   controller   applies   to automatic   adjustment for capacitor compensator of low-voltage   power distribution system to   make   power factor reach status   preset   by   user, improve utilization rate of transformer,reduce line loss and improve electric quality of power supply.

功能特点 Function features

● 控制器在高速采样计量基础上，应用我公司第三代电容器投切算法理论，投切电容更为合理，补偿更为精确，并且高度监控电容动作频率、时间，使之均衡投切，有效的延长机械产品使用寿命 ；

● 全中文显示界面，大屏幕液晶；

● 快速瞬变（脉冲群）干扰试验、振动试验、跌落试验、高低温老化试验满足相关国家标准。EMC电磁兼容性试验、环境试验满足相关IEC标准；

● 三相电压、电流、有功功率、无功功率、功率因数实时检测显示；

● 测量三相电压、电流2-15奇偶次谐波含有率及谐波总畸变率；

● 过压、欠压、过谐等各种报警功能；

●12/24路输出控制。共、分路数可任意设置组合成共补、分补及共分混合补偿方式（24路为增强型 PSTNc900i系列）；

● 动静态可在一机实现两种控制模式；

● 可实现动静态双模一体；

● 具有RS485端口、采用通用MODBUS协议与后台通讯；

● 采用先进的电容投切控制理论配套后台监控软件。可实现后台监控；

● 手动调试。

● Controller shall apply for G3 capacitor switching algorithm theory based upon hi-rate sampling measurement,switching capacitor becomes more reasonable,compensation more precise,and intensive control of capacitor   activation frequency and time for balanced switching and efficient extension for life of use (for mechanical products);

● Full Chinese display interface,Larger LCD;

● Fast   instantaneous(pulse   grouping)interruption   test,vibration   test,falling test,hi-/low-temperature   anti-age   test   should   be   subjected   to   relative national standards.EMC test,environmental test should be subjected to relative IEC standards;

● Real-time inspection and display for 3-phase voltage,current,active power, reactive power and power factor;

● Measurement of odd-times harmonic content rate of 3-phase voltage and current and its total distortion rate;

● Functions for over-voltage,under-voltage and excessive harmonic wave etc;     12/24-route   input   control.Mutual-compensation   or   slave-compensation route   shall   be   set   and   combined   into   mutual-compensation   or   slave- compensation and mutual parate mixing compensation modes.(24-route is enhanced PSTNc900i series);

● Dynamic/static status may enter into two control modes in one computer;

● Dynamic and static dual mode;

● It still has RS485 port that communicates with background through general MODBUS protocol;

● It applies to advanced capacitor switching control theory and match with background control software for further background control;

● Manual commissioning.

详细参数 Teachnical data

● 额定电压：AC220V

● 允许偏差：±20%

● 电压波形：正弦波，总畸变率不大于 5%

● 频率：50Hz，允许偏差 ±1.5Hz

● 海拔高度：79.5kPa~106kPa(2500 米 )

● 环境温度：-15℃~+60℃

● 相对湿度：空气湿度在20℃时90%，在温度较低时，允许有较高的相对湿度

● 环境条件：周围介质无爆炸危险、无足以损坏绝缘及腐蚀金属的气体，无导电尘埃

●   额定值 Un：220V

●   测量范围：0-1.6Un

●   测量误差：≤0.5%

●   过载能力：1.8Un可连续工作

●   功耗：≤10W

●   Rated voltage:AC220V

●   Allowable tolerance:±20%

●   Voltage wave form:sine wave,total distortion rate of less than 5%

●   Frequency:50Hz,allowable   tolerance:±1.5Hz

●   Altitude:79.5kPa~106kPa (2500m)

●   Ambient temperature:-15℃~+60℃

●   Relative humidity:allowable higher relative humidity at 20℃ temperature is 90%(relative lower temperature)

●   Ambient conditions:free explosion risk around it,free gas corrosive with insulator or metal,free from conductive dust

●   Rated value (Un):220V

●   Measure range:0-1.6Un     C.Measure tolerance:≤0.5%

●   Overload capacity:continuously run at 1.8Un

●   Power consumption:≤10W