380kw/6kv
630kw/6kv
高压变频器
技术方案
西门子(上海)电气传动有限公司-罗宾康部
二零零五年九月
https://www.robiconperfectharmony.com/
350kw//680kw/6.0kv 高压变频器技术方案
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罗宾康品牌高压变频器的主要特点 z 全球高压变频知名品牌，可靠性极高
z 性能优异，输入和输出谐波极少(36 脉冲整流、131 电平逆变)
z 内部变压器为干式，绝缘等级为 H 级，高于普通的 F 级，可
靠性高，维护简单
z 适应电网波动要求，电网电压可下降至 55%，变频器仍能继续
工作而不跳机
z 电压源型高压变频器、在整个速度段输入功率因素大于 0.95
z 体积最小，土建成本降低
z 高-高结构，直接输出 6.0KV 高压,没有升压变压器
z 中文 PC 操作界面，给用户带来方便
z 变频器效率高，高于 98.5%
z 防护等级高 IP31，高于普通的 IP20，对用户的环境要求低
z 环境湿度可达 95%
z 罗宾康公司在上海有服务中心和备件中心，24 小时响应用户
z 罗宾康公司业绩最多，尤其是电厂应用业绩非常多，国内最大
业绩 9500KW，国外最大业绩 60000kw
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目 录
第一章 系统配置、性能 ............................... 4
第二章 完美无谐波高压变频器基本原理 ................. 8
第三章 供货范围 .................................... 11
第四章 技术资料和交付进度 .......................... 12
第五章 交货进度 .................................... 13
第六章 技术服务 .................................... 14
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第一章 系统配置、性能
对于 380kw/6.0kv 和 630kw/6kv 高压变频装置，德国西门子公司的罗宾康品牌完美无
谐波系列(Perfect_Harmony)高压变频器可以很好的满足现场调速要求。
该系列变频采用若干个 PWM 变频功率单元串联的方式实现直接高压输出。该变频器具
有对电网谐波污染极小，输入功率因数高，输出波形质量好，不存在谐波引起的电机附加发热、
转矩脉动、噪音、dv/dt 及共模电压等问题的特性，不必加输出滤波器，就可以使用普通的同步
电机，包括国产电机。
本次高压变频系统主回路图如下：
高压变频设备供货范围：
序号 数量 说明
1 1 套
380KW 完美无谐波变频器, 6000VAC, 3 相, 50Hz，AC 输
入，0~6000V 输出,内含有一台 500kvA 的变压器在内
1 1 套
630KW 完美无谐波变频器, 6000VAC, 3 相, 50Hz，AC 输
入，0~6000V 输出,内含有一台 900kvA 的变压器在内
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变频设备基本部件
z 36 脉冲二极管整流，13 电平 IGBT/PWM 逆变
z 一体式输入 36 脉冲干式隔离变压器
z 保护等级 IP31，整个变频系统采用空冷
z 高压柜门保护连锁
z 带工业以太网、MODBUS485、RS232 通讯接口
变频器基本性能
z 变频器为高-高结构，6KV 直接输入和 6kv 输出，不需输出升压变压器，输出为单元
串联移相式 PWM 方式，输出相电压至少为 13 电平，线电压至少为 25 电平
z 系统一体化设计，包括输入干式隔离变压器，变频器等所有部件及内部连线，用户只
须连接高压输入、高压输出、低压控制电源和控制信号线即可。整套系统在出厂前进
行整体满载测试，提供测试报告
z 36 整流输入符合并优于 IEEE519~1992 及 GB/T14519~93 标准对电压失真和电流失
真最严格的要求
z 在 20~100%的负载变化情况内达到或超过 0.95 的功率因数(无需功率因数补偿装置)
z 无需滤波器变频器就可输出正弦输出电流和电压波形，对电机没有特殊的要求，可以
使用普通异步电机，电机不必降额使用。具有软起动功能，没有电机启动冲击引起的
电网电压下跌，可确保电机安全、长期运行
z 变频装置输出波形不会引起电机的谐振，转矩脉动小于 0.1%，变频器有共振点频率
跳跃功能
z 变频装置对输出电缆长度无任何要求，电机不会受到共模电压和 dv/dt 的影响
z 变频器可在输出不带电机的情况下进行空载调试，也可在没有高压情况下用低压电进
行空载调试
z 控制采用无速度传感器矢量控制，起动转矩可达 150%
z 变频器对电网电压波动有极强的适应能力，在±10%范围内变频器能满载工作，在 45%
的电压下降情况下变频器能继续运行而不跳闸(降载运行)
z 满载时变频器部分效率为 98.5%以上
z 控制系统采用全数字微机控制，有自诊断功能
z 电机参数自动检测、控制系统参数自动优化
z 变频器功率单元和主控系统通讯采用光纤连接，具有很高的通信速率和抗干扰能力，
安全性好
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z 控制系统具有在线检测变频器输入电压、电流、输入有功功率、无功功率、输入功率
因素、累计用电量、输出电压、电流、功率、频率、电机转速等
z 频率精度：±0.1%(所有因素下)
z 调速范围：0-100%连续可调
z 加/减速时间 0.1-3200 秒 (根据负载情况可设定)
z 输出频率 0-120HZ(根据电机情况可设定)
z 环境温度为-10~+40°C，海拔 1000 米以下
z 环境湿度可达 95%
z 变频器抗地震能力为 7 级，振动 0.5G
z 过载能力 120%,1min/10min
z 临界速度可跳过(共 3 组，可任意设定)
z 用户可调的数字表，可显示速度，电流，电压，功率，用电度数等
结构
z 变频器的功率单元为模块化设计，可以从机架上抽出，移动和更换，所有单元可以互
换，更换单元不须专用工具，更换一个单元的时间一般小于 10 分钟。
z 逆变器侧采用高开关频率的 IGBT 器件，保证良好的输出波形
z 输入侧的隔离变压器能保护电机不受共模电压的影响
z 整个变频系统采用空冷
z 变频系统正面开门，可靠墙布置
保护
z 变频装置有过电压，过电流，欠电压，缺相，变频器过载，变频器过热，电机过载，
输出接地，输出短路等保护功能
z 变频装置有隔离变压器的各种保护
z 变频器带转速跟踪再起动功能
变频器 I/O 接口(可以按照用户要求扩展)
变频器和 DCS 的接口
No. I/O AI AO DI DO 备注
1 速度给定 1 4~20mA
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2 电机电流,速度电压,功率 4 4~20mA
3 启动 1
4 停止 1
5 VFD 运行 1 干接点
6 VFD 停止 1 干接点
7 VFD 报警 1 干接点
8 VFD 故障 1 干接点
变频器和高压开关的接口(每套)
No. I/O AI AO DI DO 说明
1 跳闸 1 220V,DC,5A
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第二章、完美无谐波高压变频器基本原理
罗宾康完美无谐波系列(Perfect_Harmony)高压变频器，该系列变频采用世界首创的功
率单元直接串联的方式实现直接高压输出。该系列变频器具有对电网谐波污染极小，输入功率
因数高，输出波形质量好，不存在谐波引起的电机附加发热、转矩脉动、噪音、dv/dt 及共模
电压等问题的特性，不必加输出滤波器，就可以使用普通的异步电机，包括国产电机，对输出
电缆长度无要求。
6kV 系列完美无谐波高压变频器主电路拓扑结构图如下：
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6kV 系列完美无谐波高压变频器的功率单元结构图如下;
变频器由多个功率单元串联而成，各个功率单元由输入隔离变压器的二次隔离线
圈分别供电。电网电压经过副边多重化的隔离变压器降压后给功率单元供电，功率单
元为三相输入、单相输出的交直交 PWM 电压源型逆变器结构，实现变压变频的高压
直接输出，供给高压电动机。以 6kV 输出电压等级为例，每相由 6 个额定电压为 630V
的功率单元串联而成，输出相电压达 3780V，线电压达 6.6kV，每个功率单元分别由
输入变压器的一组副边供电，功率单元之间及变压器二次绕组之间相互绝缘。二次绕
组采用延边三角形接法，实现多重化，以达到降低输入谐波电流的目的。对于 6kV 电
压等级变频而言，就是 36 脉冲的整流电路结构，输入电流波形接近正弦波。由于输
入电流谐波失真很低，变频器输入的综合因数可达到 0.95 以上。下图为该变频器的输
入电压、电流。
6000VAC 变频器输入 AB 线电压和 C 相电流
逆变器输出采用多电平移相式 PWM 技术，6.0kV 相电压输出 13 电平，线电压输
出 25 电平。输出线电压非常接近正弦波，dv/dt 很小。
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电平数的增加有利于改善输出波形，由谐波引起的电机发热，噪音和转矩脉动都
大大降低，所以这种变频器对电机没有特殊要求，可直接用于普通异步电机，不需要
输出滤波器，对输出电缆长度无特殊要求。下图为变频器输出电压电流波形。
6000VAC 变频器输出 AB 线电压和 C 相电流波形
与采用高压器件直接串联的变频器相比，由于不是采用传统的器件串联的方式来实现
高压输出，而是采用整个功率单元串联，器件承受的最高电压为单元内直流母线的电
压，可直接使用低压功率器件，器件不必串联，不存在器件串联引起的均压问题。功
率单元中采用的低压 IGBT 功率模块，驱动电路简单，技术成熟可靠。
功率单元采用模块化结构，同一变频器内的所有功率单元可以互换，维修也非常方便。
这一系列变频目前正在全世界得到广泛应用，目前全球业绩已达 3000 多台。国内
业绩达 450 多台，
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第三章 供货范围
3.1 本工程订购的设备见表 3-1。 表3-1：设备规范和数量
序号 数量 说明
1 1 套
380KW 完美无谐波变频器, 6000VAC, 3 相, 50Hz，AC 输
入，0~6000V 输出,内含有一台 500kvA 的变压器在内
1 1 套
630KW 完美无谐波变频器, 6000VAC, 3 相, 50Hz，AC 输
入，0~6000V 输出,内含有一台 900kvA 的变压器在内
3.2 专用工具
序号 名称 规格和型号 单位 数量 产地
生产
厂家
无
注：美国罗宾康高压变频器不需要专用工具
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第四章 技术资料和交付进度
1 一般要求
1.1 我方提供的资料使用国家法定单位制即国标单位制，语言为中文。
1.2 资料的组织结构清晰、逻辑性强。资料内容要正确、准确、一致、清晰、完整、满足
工程需要.
2 资料提交的基本要求
序号 说 明
时 间
(合同签订后)
1
变频器中文手册(包括系统原理、技术规范、安装、调试、
参数设置、故障检修和维护)
2 周
2 设备配置 2 周
3 电源要求、接地要求、外形尺寸及布置要求 2 周
4 电气接线图及设备表 2 周
5 变频器输入、输出接口清单及说明 2 周
6 变频器柜内部安装接线图及端子排出线图 2 周
7 同业主的接口要求 按照业主要求定
8 供土建设计的资料 2 周
9 供暖通设计的资料(散热量和散热风道要求) 2 周
10 产品合格证书 交货时
11 出厂试验报告 交货时
12 最终图纸、参数 调试后 2 周
13 调试报告 调试后 2 周
我方提供的技术资料为 4 套。
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第五章 交货进度
设备的交货顺序要满足工程安装进度的要求。一般我们的交货期在 4 个月左右,特殊情况可
以提前.
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第六章 技术服务
1 我方现场技术服务
1.1 我方现场服务人员的目的是使所供设备安全、正常投运。能派出合格的现场服务人员。
在投标阶段应提供包括服务人月数的现场服务计划表。
序号 内容 天数 人员 次数
1 现场调试、试验及培训 10 天 中级 1
1.2 我方现场服务人员具有下列资质：
1.2.1 遵守法纪，遵守现场的各项规章和制度；
1.2.2 有较强的责任感和事业心，按时到位；
1.2.3 了解合同设备的设计，熟悉其结构，有相同或相近机组的现场工作经验，能够正确
地进行现场指导；
1.2.4 身体健康，适应现场工作的条件。
1.3 我方现场服务人员的职责
1.3.1 我方现场服务人员的任务主要包括设备催交、货物的开箱检验、设备质量问题的处
理、指导安装和调试、参加试运和性能验收试验。
1.3.2 在安装和调试前，我方技术服务人员应向需方技术交底，讲解和示范将要进行的程
序和方法。对重要工序(见下表)，我方技术人员要对施工情况进行确认和签证，否则需方不能
进行下一道工序。经供方确认和签证的工序如因供方技术服务人员指导错误而发生问题，供方
负全部责任。
安装、调试重要工序表
序号 工序名称 工序主要内容 备注
1 起吊和安装指导 包括起吊变频器和安装变频器的要求
2 调试措施交底 包括调试内容、步骤
3 调试 调试
4 运行 变频器带负载运行
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630kw/6kv
High voltage inverter
Technical solutions
Siemens (Shanghai) Electric Drive Co., Ltd.-Robicon Department
September 2005
https://www.robiconperfectharmony.com/
350kw//680kw/6.0kv high-voltage inverter technical solution
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The main features of Robicon Perfect Harmony high-voltage inverter z The world-renowned high-voltage inverter brand, extremely reliable
z Excellent performance, minimal input and output harmonics (36 pulse rectification, 131 level inverter)
z The internal transformer is of dry type, and the insulation class is H class, which is higher than the ordinary F class.
High reliability and simple maintenance
z Adapt to grid fluctuation requirements, the grid voltage can be reduced to 55%, and the inverter can still continue
Work without jumping
z Voltage source type high voltage inverter, the input power factor in the entire speed range is greater than 0.95
z Smallest size, lower civil construction cost
z High-high structure, directly output 6.0KV high voltage, without step-up transformer
z Chinese PC operation interface, bringing convenience to users
z The inverter has high efficiency, higher than 98.5%
z High degree of protection IP31, higher than ordinary IP20, low requirements for the user's environment
z Ambient humidity can reach 95%
z Siemens Robicon has a service center and a spare parts center in Shanghai, responding to users 24 hours a day
z Siemens Robicon has the most performance, especially in power plant applications, the largest in China
Achievement 9500KW, the largest foreign achievement 60000kw
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table of Contents
Chapter 1 System Configuration and Performance ............... 4
Chapter 2 Basic Principles of Perfect Harmonic-Free High Voltage Inverter ....... 8
Chapter 3 Scope of Supply ....................................11
Chapter IV Technical Data and Delivery Schedule ..........................12
Chapter 5 Delivery Schedule .......................... 13
Chapter VI Technical Services ..................... 14
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Chapter One System Configuration and Performance
For 380kw/6.0kv and 630kw/6kv high-voltage frequency conversion devices, the Robincon brand of German Siemens is perfect.
Harmonic series (Perfect_Harmony) high-voltage inverter can well meet the requirements of on-site speed regulation.
This series of frequency conversion uses several PWM frequency conversion power units in series to achieve direct high voltage output. The inverter has
There is minimal pollution to the grid harmonics, high input power factor, good output waveform quality, and no additional heating of the motor caused by harmonics.
The characteristics of torque ripple, noise, dv/dt and common mode voltage, etc., do not need to add output filter, you can use ordinary synchronization
Motors, including domestic motors.
The main circuit diagram of this high-voltage frequency conversion system is as follows:
Scope of supply of high-voltage frequency conversion equipment:
No. Quantity Description
1 1 set
380KW perfect harmonic-free inverter, 6000VAC, 3 phase, 50Hz, AC output
Input, 0~6000V output, including a 500kvA transformer
1 1 set
630KW perfect harmonic-free inverter, 6000VAC, 3 phase, 50Hz, AC output
Input, 0~6000V output, including a 900kvA transformer
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Basic components of frequency conversion equipment
z 36 pulse diode rectification, 13 level IGBT/PWM inverter
z Integrated input 36-pulse dry-type isolation transformer
z Protection grade IP31, the entire frequency conversion system adopts air cooling
z High-voltage cabinet door protection interlock
z With industrial Ethernet, MODBUS485, RS232 communication interface
Basic performance of inverter
z The inverter has a high-high structure, 6KV direct input and 6kv output, no need to output a step-up transformer, the output is a unit
Series phase-shifting PWM mode, output phase voltage is at least 13 level, line voltage is at least 25 level
z System integration design, including input dry-type isolation transformer, frequency converter and all components and internal wiring, users only
It is only necessary to connect high-voltage input, high-voltage output, low-voltage control power supply and control signal lines. The whole system is moving forward from the factory
Perform overall full load test and provide test report
z 36 The rectified input meets and is superior to IEEE519~1992 and GB/T14519~93 standards for voltage distortion and current loss.
The most stringent requirement
z Reach or exceed 0.95 power factor within 20~100% load changes (no need for power factor compensation device)
z The inverter can output sinusoidal output current and voltage waveforms without a filter, and there is no special requirement for the motor.
With ordinary asynchronous motors, the motors do not need to be derated. With soft start function, no motor start shock caused
The voltage drop of the grid can ensure the safe and long-term operation of the motor
z The output waveform of the frequency conversion device will not cause the resonance of the motor, the torque ripple is less than 0.1%, and the frequency converter has a resonance point frequency
Jump function
z The frequency conversion device has no requirements on the length of the output cable, and the motor will not be affected by the common mode voltage and dv/dt
z The inverter can be used for no-load debugging when the output is not equipped with a motor, or it can be input with low-voltage power when there is no high-voltage
No-load debugging
z Control adopts speed sensorless vector control, starting torque can reach 150%
z The frequency converter has a strong adaptability to the fluctuation of the grid voltage. The frequency converter can work at full load within the range of ±10%.
The inverter can continue to run without tripping under the condition of voltage drop (reduced load operation)
z Partial efficiency of the inverter is above 98.5% at full load
z The control system adopts full digital microcomputer control with self-diagnosis function
z Automatic detection of motor parameters, automatic optimization of control system parameters
z The communication between the inverter power unit and the main control system adopts optical fiber connection, which has a high communication speed and anti-interference ability.
Good security
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z The control system has online detection of inverter input voltage, current, input active power, reactive power, and input power
Factors, cumulative power consumption, output voltage, current, power, frequency, motor speed, etc.
z Frequency accuracy: ±0.1% (under all factors)
z Speed range: 0-100% continuously adjustable
z Acceleration/deceleration time 0.1-3200 seconds (can be set according to load conditions)
z Output frequency 0-120HZ (can be set according to motor conditions)
z The ambient temperature is -10~+40°C, the altitude is below 1000 meters
z Ambient humidity can reach 95%
z The seismic resistance of the inverter is level 7, and the vibration is 0.5G
z Overload capacity 120%, 1min/10min
z Critical speed can be skipped (3 groups in total, can be set arbitrarily)
z User-adjustable digital meter, which can display speed, current, voltage, power, power consumption, etc.
structure
z The power unit of the frequency converter is of modular design, which can be drawn from the rack, moved and replaced, and all units can be mutually connected.
No special tools are required to replace a unit, and the time to replace a unit is generally less than 10 minutes.
z The inverter side adopts high switching frequency IGBT devices to ensure good output waveform
The isolation transformer on the input side can protect the motor from common mode voltage
z The entire frequency conversion system adopts air cooling
z The front door of the frequency conversion system is open, and the wall layout is reliable
protection
z The frequency conversion device has overvoltage, overcurrent, undervoltage, phase loss, inverter overload, inverter overheating, motor overload,
Output grounding, output short circuit protection functions
z The frequency conversion device has various protections of the isolation transformer
z Inverter with speed tracking and restart function
Inverter I/O interface (can be expanded according to user requirements)
Inverter and DCS interface
No. I/O AI AO DI DO Remarks
1 Speed setting 1 4~20mA
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2 Motor current, speed voltage, power 4 4~20mA
3 Start 1
4 stop 1
5 VFD operation 1 dry contact
6 VFD stop 1 dry contact
7 VFD alarm 1 dry contact
8 VFD failure 1 dry contact
Inverter and high voltage switch interface (per set)
No. I/O AI AO DI DO Description
1 Trip 1 220V, DC, 5A
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Chapter Two, the basic principle of perfect harmonic-free high-voltage inverter
Robin Kang perfect harmonic series (Perfect_Harmony) high voltage frequency converter, this series frequency conversion uses the world's first power
The direct series connection of the rate units realizes direct high-voltage output. This series of frequency converters has minimal harmonic pollution to the grid, and the input power
High factor, good output waveform quality, no additional heating, torque ripple, noise, dv/dt and common mode of the motor caused by harmonics
For the characteristics of voltage and other problems, you can use ordinary asynchronous motors, including domestic motors, without adding output filters.
The cable length is not required.
The topological structure diagram of the main circuit of the 6kV series perfect harmonic-free high-voltage inverter is as follows:
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The power unit structure diagram of the 6kV series perfect harmonic-free high-voltage inverter is as follows;
The inverter is composed of multiple power units connected in series, and each power unit is composed of the secondary isolation line of the input isolation transformer
The circles are powered separately. The grid voltage is stepped down by the multiple isolation transformer on the secondary side to supply power to the power unit.
The structure of the AC-DC-AC PWM voltage source inverter with three-phase input and single-phase output realizes the high voltage of variable voltage and frequency conversion.
Direct output and supply to high voltage motor. Take the 6kV output voltage level as an example, each phase consists of 6 rated voltages of 630V
The power units are connected in series, the output phase voltage reaches 3780V, the line voltage reaches 6.6kV, and each power unit consists of
A set of secondary sides of the input transformer supply power, and the power units and the secondary windings of the transformer are insulated from each other. Secondary winding
The group adopts the Yanbian delta connection method to achieve multiplexing to achieve the purpose of reducing the input harmonic current. For 6kV electricity
In terms of voltage level frequency conversion, it is a 36-pulse rectifier circuit structure, and the input current waveform is close to a sine wave. Due to loss
The input current harmonic distortion is very low, and the comprehensive factor of the inverter input can reach more than 0.95. The following figure shows the output of the inverter
Input voltage and current.
6000VAC inverter input AB line voltage and C phase current
The inverter output adopts multi-level phase-shifting PWM technology, 6.0kV phase voltage output 13 levels, line voltage output
25 levels out. The output line voltage is very close to a sine wave, and the dv/dt is very small.
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0kw//680kw/6.0kv high-voltage inverter technical solution
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The increase in the number of levels is beneficial to improve the output waveform. The motor heating, noise and torque ripple caused by harmonics are all
Greatly reduced, so this kind of inverter has no special requirements for the motor, and can be directly used for ordinary asynchronous motors without
The output filter has no special requirements on the length of the output cable. The following figure shows the output voltage and current waveform of the inverter.
6000VAC inverter output AB line voltage and C phase current waveform
Compared with the inverter that uses high-voltage devices directly in series, it is not realized by the traditional way of device series.
High-voltage output, instead of using the entire power unit in series, the highest voltage the device can withstand is the power of the DC bus in the unit.
Low voltage power devices can be used directly. Devices do not need to be connected in series, and there is no voltage equalization problem caused by devices connected in series. Work
The low-voltage IGBT power module used in the rate unit has a simple drive circuit and mature and reliable technology.
The power unit adopts a modular structure, all power units in the same inverter can be interchanged, and maintenance is also very convenient.
This series of frequency conversion is currently being widely used all over the world, and the current global performance has reached more than 3,000 units. domestic
The sales volume reached over 450 units,
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Chapter III Scope of Supply
3.1 The equipment ordered for this project is shown in Table 3-1. Table 3-1: Equipment specifications and quantity
No. Quantity Description
1 1 set
380KW perfect harmonic-free inverter, 6000VAC, 3 phase, 50Hz, AC output
Input, 0~6000V output, including a 500kvA transformer
1 1 set
630KW perfect harmonic-free inverter, 6000VAC, 3 phase, 50Hz, AC output
Input, 0~6000V output, including a 900kvA transformer
3.2 Special tools
No. Name Specification and Model Unit Quantity Place of Origin
produce
factory
no
Note: American Robin Kang high-voltage inverter does not require special tools
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Chapter IV Technical Data and Delivery Schedule
1 General requirements
1.1 The information provided by us uses the national legal unit system, namely the national standard unit system, and the language is Chinese.
1.2 The organization of the data is clear and logical. The content of the information should be correct, accurate, consistent, clear, complete and satisfying
Engineering needs.
2 Basic requirements for information submission
Serial number description
Time
(After signing the contract)
1
Inverter Chinese manual (including system principle, technical specifications, installation, debugging,
Parameter setting, troubleshooting and maintenance)
2 weeks
2 Equipment configuration 2 weeks
3 Power requirements, grounding requirements, external dimensions and layout requirements 2 weeks
4 Electrical wiring diagram and equipment table 2 weeks
5 List and description of inverter input and output interface 2 weeks
6 Internal installation wiring diagram and terminal discharge diagram of the inverter cabinet 2 weeks
7 Interface requirements with the owner
8 Materials for civil engineering design 2 weeks
9 Information on HVAC design (heat dissipation and cooling air duct requirements) 2 weeks
10 Product conformity certificate At delivery
11 Factory test report Upon delivery
12 Final drawings and parameters 2 weeks after commissioning
13 Commissioning report 2 weeks after commissioning
We provide 4 sets of technical data.
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Chapter 5 Delivery Schedule
The delivery sequence of the equipment must meet the requirements of the project installation schedule. Generally our delivery time is about 4 months, special circumstances can
In advance.
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Chapter VI Technical Services
1 Our on-site technical service
1.1 The purpose of our on-site service personnel is to make the supplied equipment safe and normal operation. Can dispatch qualified field service personnel.
In the bidding stage, an on-site service schedule including the number of service man months shall be provided.
No. Contents Number of days Personnel times
1 On-site commissioning, testing and training 10 days Intermediate 1
1.2 Our field service personnel have the following qualifications:
1.2.1 Abide by laws and regulations, and abide by the rules and regulations on site;
1.2.2 Have a strong sense of responsibility and professionalism, and be in place on time;
1.2.3 Understand the design of contract equipment, be familiar with its structure, have field work experience of the same or similar units, and be able to correctly
On-site guidance;
1.2.4 Be healthy and adapt to the working conditions on site.
1.3 Responsibilities of our field service personnel
1.3.1 The tasks of our on-site service personnel mainly include expediting the delivery of equipment, unpacking inspection of goods, and handling of equipment quality problems.
Manage, guide installation and commissioning, participate in trial operation and performance acceptance test.
1.3.2 Before installation and commissioning, our technical service personnel shall provide technical details to the buyer, explain and demonstrate the process to be carried out.
Order and method. For important processes (see the table below), our technical personnel must confirm and visa the construction status, otherwise the buyer cannot
Proceed to the next process. If a problem occurs in the process confirmed and visaed by the supplier due to incorrect guidance by the supplier’s technical service personnel, the supplier
Take full responsibility.
Important procedures for installation and commissioning
No. Process name Main content of process Remarks
1 Hoisting and installation instructions, including requirements for hoisting and installing the inverter
2 Interpretation of debugging measures, including debugging content and steps
3 Debugging
4 Operation The inverter runs with load
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