1、2）确保一次起动成功，不受电网电压波动和负载变动的影响；3）起动平稳，对机械设备无冲击；4）对电网影响小，起动时电网压降小；5）起动时功率因数高；6）无谐波污染；7）静态变阻起动，安全可靠；8）操作简单，免维护。1） 直接起动电流曲线2） 串热变电阻后起动电流曲线1）电机自然特性 2）串热变电阻后特性3）负载转矩 4）阴影区为加速转矩HTR3系列为标准设计，具有电机起动电流小且恒定、起动时电网压降小、起动时功率因数高、无谐波污染、简单安全可靠等基本性能特点。HTR4系列为自适应高压热变电阻软起动装置，采用PLC智能化控制，能自动检测、自动调整电阻初始值，以保证电机在不同环境下起动特性的一致性。
2、HTR6系列为全密封、智能化、高可靠性、长寿命设计，具有以下独特的性能：1）环境适应性强：能适应高寒、高湿度、高海拔、腐蚀气体等恶劣环境；2）具有友好的人机界面：可方便地进行观察、操作和记录；3）PLC智能化控制：根据现场工况可调整起动时间、电阻值等参数，以保证起动性能的稳定性；4）具有通讯接口，能实现远程通讯和计算机集中控制；5）能实时打印起动电流曲线、电压曲线（需用户相关设备支持）；6）自动监测设备的各种状态及参数，并可上传和打印；7）具有故障自动检测、自动报警和综合保护功能；8）全密封、免维护设计，寿命30年以上。表一:HTR3、HTR4、HTR6系列高压热变电阻软起动装置性能特点一览表
3、序号性能及配置HTR3系列HTR4系列HTR6系列1恒电流软起动2起动时压降小3起动时功率因数高4安全（静态变阻）5可靠，免维护6液位检测7红外测温8电阻初始值可调整9电极主要材料CuNiTi10环境温度对初始电阻的影响2%11PLC控制12使用寿命30年13全密封式14适用于恶劣环境15通讯（RS232、RS485）接口16人机界面以上各项功能和配置仅供参考，不同的系统可能有些变化。型 号适用电机功率（kW）起动电流范围连续起动次数每次起动温升外形尺寸（宽X深X高）ABH净重 （吨）配阻后重量（吨）HTR3-5005002.0-3.5Ie3次或累积起动时间不超过120S16001200230
4、01726HTR3-100050010001930HTR3-160010001600180020536HTR3-20001600200020002240HTR3-25002000250027002554HTR3-320025003200330066HTR3-45003200450036003886HTR3-600045006000420045102HTR3-8000600080004500265047115HTR3-10000800010000480050130HTR3-150001000015000540070170HTR3-2200015000220006000215HTR4-50031H
5、TR4-100024HTR4-160042HTR4-20002848HTR4-2500HTR4-3200HTR4-4500HTR4-6000HTR4-8000HTR4-10000HTR4-15000HTR4-2200090净重（吨）配阻后重量HTR6-500HTR6-1000HTR6-16002750HTR6-200053HTR6-25002800HTR6-320072HTR6-4500HTR6-600060117HTR6-10000600010000146HTR6-15000570085188HTR6-22000107245HTR6-3200022000320009000151360HTR6
6、-45000320004500010800201510五、安装及调试1）安装注意事项：1热变电阻最好安装在独立、安全的地方。2安装地面应水平，热变电阻应配槽钢基座，槽钢基座水平，误差小于0.2%，热变电阻和基座槽钢采用焊接方式固定，电缆根据方案与用户要求采用不同出线方式。3安装完后应作绝缘电阻检测和耐压试验。4热变电阻可能有几个分离的柜体（或箱体），安装时应保证按要求布置。2）电阻液配置：1了解电网参数（最小短路容量、固定负荷等）及继电保护整定值、电机参数、负载参数。2根据负载参数确定起动电流倍数，烧结风机取33.5倍，压缩机、轴流风机取2.53倍（详见表五），与用户协商起动电流倍数和起动时间
7、，计算热变电阻阻值。表五：负载类型烧结风机离心风机高炉风机（高速增压离心）旋转式压缩机轴流风机往复式压缩机罗茨风机起动电流倍数Ki33.52.83.522.5起动时间40S60S30S40S10S20S六、维护警告！ 维护工作只能由训练有素的专职人员执行。1） 注意事项1电阻值的调整应在生产厂家的的指导下进行。2电机起动过程中的保护整定应能覆盖起动时间，同时应有其它保护方式确保电机起动过程的安全。3本热变电阻适用于不频繁起动场所,允许电动机连续三次起动或累计起动时间不大于120S。4每次起动之前应检查电阻器的液位是否在正常位置，柜内及接线端有无异常。5定期检查项目对地耐压（工频耐压）。按表六进
8、行，时间为1min。6严格按照操作步骤，启动完毕后必须使高压热变软起动装置脱离带电状态。2）保养维护1应保持配电间及柜体的干燥，清除柜内设备上的灰尘杂物。2器件活动部位应有干净的润滑油。3热变电阻运行参数不得超过铭牌指定值。4热变电阻每隔六个月应检查一次，检查全部紧固螺栓有无松动，接线有无脱落，以及频繁使用的二次控制器件，检查联锁是否有效等。出现问题及时调整。5经常检查液体液位是否在规定的范围之内，若液位太低应加适量清水保持液位。七、包装、运输、贮存及开箱检查1包装要求依据用户可选用简易包装，国内包装及出口包装要求。2电阻柜不可躺倒搬运，以免损坏柜体及绝缘箱体，搬运及存放倾斜角不宜超过15，特
9、殊要求请另行与制造厂家协商。用叉车或吊车搬运包装箱，搬运时应避免撞击，起吊时应按储运标志吊装。3贮存时应避免日晒及雨淋。4开箱前应检查包装是否完好，破损严重应与运输单位交涉，或与我公司联系。开箱起吊柜体时，应勾在柜顶的吊环上。起吊时候应该采用4点吊装，并保证4点受力均匀，以免柜体受力不匀而变形。八、订货须知：1所配电机型号、功率、电压、电流、堵转电流、转速、起动转矩倍数、最大起动转矩倍数、电机及负载GD2、母线最小短路容量、负载阻力矩变化曲线、所配设备名称及工作制要求；2所选电机的高压起动主回路方案、拼柜排列图、配电室平面布置图;3特殊要求请另行与制造厂家协商。HTR Series of Hi
10、gh-voltage Thermal Resistor 1 OverviewHTR Series High-Voltage thermal resistor （brief in HTR hereinafter） is suitable for large-capacity high-voltage AC squirrel-cage asynchronous motors or high-voltage synchronous motors with asynchronous starting, used to reduce the starting voltage. The motor sta
11、rted with this device has characteristic that starting current is little and constant, torque gradually increase, and the process of starting has no current impact and mechanical shock, little impact on the electricity grid, and no electromagnetic interference. HTR is an ideal alternative of startin
12、g reactor and autotransformer starter products. Compared to the large capacity high-voltage frequency soft starter, it is also has advantages of simple operation, maintenance-free, non-harmonic pollution and others. HTR is widely used for soft start of high voltage motor in voltage level of 3KV, 6KV
13、, 10kV, and power level of 250kW to 45000kW or even greater capacity. The device uses five patent technologies which is the most advanced in same type of products in home.Patent Number: ZL 97 2 41662.X ZL 99 2 45458.X ZL 03254078.XZL 02290367.X ZL 03254077.X.2 Working conditionEnvironment temperatur
14、e: the upper limit of 60 C （24 hour average temperature does not exceed 55 C）, the lower limit of -5 C;The relative humidity less than 85 percent;High altitude not more than 2,000 m;It should be lay in place that has no severe shock and vibration and the vertical gradient not more than 5 ;Installati
15、on sites not allow any conductive dust and corrosive gases; no fire and explosion hazards.Note: altitude height more than 2,000 m, users should note when ordering.3 Type explanation4 Product features4.1 Working principleHTR is composed of the three phase equilibrium negative temperature resistance.
16、When current through the resistor, resistor temperature gradually increases and resistance values gradually reduces so that motor terminal voltage gradually increase and starting torque gradually increase to achieve a purpose of smooth start and low motor starting current. The device works with high
17、-voltage soft start control cabinet, isolation cabinet, switching cabinet and star point control cabinet. Being connected in motor starter circuit, complete the starting of motors and motor protection in the process of starting.4.2 Performance featuresAccording to product performance and the differe
18、nt configuration plan, we divide HTR into HTR3, HTR4, HTR6 three series to meet the needs of different users. See Table 1 to know about specific performance characteristics, in accordance with user requirements it can be adjusted accordingly.HTR3, HTR4, HTR6 series all have the following basic chara
19、cteristics:1） Constant current and soft start: starting current is 2.0 to 3.5 times of rated current. Reduce the heat generated when starting, and effectively extend motor life;2） Guarantee successful start for once, free from grid voltage fluctuations and the influence of changes of load;3） Start s
20、moothly, no impact on the mechanical equipment;4） Little impact on power grid, low voltage drop of power grid;5） Starting with high power factor;6） Non-harmonic pollution;7） Static resistance start, safe and reliable;8） Simple operation, maintenance-free1） Direct starting current curve2） Starting cu
21、rrent curve after series connection of resistor1） Motor natural characteristic 2） Motor characteristic after series connection of resistor3） Load torque 4） Shade area shows speeding up torqueHTR3 series are standard designed, with performance characteristics that constant and low motor starting curr
22、ent, low voltage drop, high power factor at the start, no harmonic pollution, simple, safe and reliable. HTR4 series are resistance adaptive soft start device, using PLC intelligent control to automatically detect and automatically adjust initial resistance value, in order to ensure start characteri
23、stics consistency under different circumstances.HTR6 series are completely sealed, intelligent, high-reliability, long-life designed, and has the following unique properties:1） Environmental adaptability: it can adapt to cold, high humidity, high elevation, corrosion gas and harsh circumstances;2） A friendly man-machine interface: it can be
