Central system control 中央控制柜
Control panel designed / Basic supply scope:
Single-frame equipment cabinet, with a front door of steel sheet, thermostatical switch- control cabinet ventilation device, equipment cabinet lamp with a maintenance socket, fixed in wiring diagram pocket behind the door
Protection-type IP42 rubber-sealing door, painted grey according to RAL 7035; the cable can be led in from the top or the bottom, the entry cable strain is dispelled, with earth bolts
The design is in accordance with DIN EN 60439-1 Part 500, ambient temperature +5 to +40 ℃, the electric shock protection is accordance with BGVA 3, with white labels having boldface types
Dimensions: Rittal TS system, height 2,000 + 200 base, depth 600 mm, width at least 800 mm.
The following parts will be installed in the public control cabinet.
Programmable logic controller (PLC ), whose pattern is Siemens Simatic S7-300, with 24 V DC overvoltage protection, and one Siemens TP177B (5.4 in ) touch panel, to be installed on the front door of the public control panel.
PLC can be programmed for the following basic functions:
Choose a gas generating set through the contacts of a customer control system (ZLT), from the power (two-point control) of the factory, or temperature requirements (heat control operation).
Carry on heat control operation through the PT 100 temperature sensor and in accordance with the temperature of the returning heating water. Start or stop the module according to the heat requirements, including the choice of at most 2 peak-period boilers required for extra temperature.
The data is transmitted to the Simatic S7 PLC from TEM via the TTY interface.
Via bus Profibus DP or CAN-Bus interface, the data is transmitted to the Simatic S7 PLC from the multi-functional relay of the generator.
Show all the visual operation and fault messages of the gas generating set, on the TP 177B touch panel (in German / English).
Average the operating hours of all the modules for the same operating time (realized through choosing different generating sets).
Extra display and record of all module fault information sets
Distribution demonstration (at most for 16 pieces /to be confirmed separately for each item):
Fuse box movements of the central control system
Overvoltage/Undervoltage fault
Overfrequency/Underfrequency fault
Power supply / phase vector shift fault
Main power coupling switch-on / trip
Room ventilation system fault
Filling pump fault
Fresh oil tank emptying
Fresh oil tank overflow
Waste oil tank and filling
Waste oil tank overflow
And so on
Included in the supply scope
Including the island-parallel operation of all the modules
Main network control (U <85%, U > 115%)
Control of the main net circuit breaker, when necessary, with AC generator coupling switch control
In the island-parallel operation, the gas generating set depends on load starting and shutdown (30% of the minimum power of each generating set, the power kept for the extra consumption of load added during the start of the generator set, etc)
Share the effective load between the running MWM generator sets
After the main network is energized and re-stabilized, synchronizing again with the parallel operation of the main network
Switchover of the auxiliary panel power supplies (2 separate power supplies)
It is essential to offer a customer’s single line and to be in accordance with MWM’s load step. The starting power of the electricity-using equipment is greatly related to the load step.
Compressor control of all module compressed-air supply system
Control of 400 V compressed-air supply system (electric compressor ) (starting in the star- triangle mode), including the control over automatic water drainage and "overload" fault messages, the monitoring of the oil pressure of the governor during the running of the compressor. When necessary, the gas generator set will be shut down, and then, the fault message of "Low Oil Pressure" will be shown.
Installation of all module warning systems
Installation of the gas warning system (The sensor and gas warning system are not to be supplied by the switchgear manufacturers and shall be ordered by MWM alone)
The main fuse of the auxiliary power supply led out from the main power grid, about xxA , 3 poles
The treatment of the fault messages sent out from the gas warning system (At the 1st stage, all air blowers are turned on, sending warns to the TEM additional fault message system. /At the second stage, the gas generator set will have an urgent shut-down, the main fuse of the 400 V auxiliary power supply shall be opened, sending the shut-down message of the generator to the TEM’s additional fault message system.)
Carry on visualization display of all operation messages and fault messages of the gas generator set (TEM and generator data) on the 256-color Siemens MP colored picture touch screen.
Specifications: 10 inches (Not applicable to TP 177B in the basic display range)
The following system pictures (in German / English) have passed visualization treatment:
The electric single-line diagram of the whole system, the generator set, AC generator and main power transformer are expressed with symbols.
The hydraulic flow chart indicates the most important data from TEM and AC generator; the visualization of the desk-top radiators of the mixed cooling loop /emergency cooling loop, and the visualization of the ventilation equipment and lubricating oil supply system.
All module status display (open/close /fault, etc.)
Offering central display of all operation messages and fault messages that are sent through interfaces and that coming from TEM modules (gas engine) and multi-functional relays (AC generator), and all other necessary settings,/disposition of controllers, etc (language and user’s management)
Communication interface
Interface: The industrial Ethernet, to a customer's control system (including an interface terminal), transmits all measured values, and gas generator set alarm messages from TEM EVO and multi-functional relays. The interface will be designed as a slave system.
Printer for unexpected messages and fault messages that are connected to ZAS-PLC
DIN A4, colored laser printer
Control cabinet heating
Carry out control over the control cabinet heating 230V/ 0.1kW via a thermostat and humidistat.
Note: It is essential for a switchgear supplier or authorized MWM personnel to debug the switchgear otherwise we shall not bear the quality assurance.
Central system control 中央控制柜
控制面板设计/基本供货范围：
单架机柜、带前门的薄钢板设计、恒温开关－控制柜通风装置以及带维修插座的机柜灯、固定在门后的接线图口袋
防护类型IP42 橡胶密封门、依照RAL 7035 涂成灰色、电缆可从顶端或底部引入、引入电缆应变消除、接地螺栓
设计依照DIN EN 60439-1 第500 部分，+5 至+40℃的环境温度，电击防护依照BGVA 3，带黑体字的白色标签
尺寸：Rittal TS 系统，高度 2,000 毫米＋200 毫米底座，深度600 毫米，宽度至少800 毫米
以下部件安装在公共控制柜中：
可编程逻辑控制器（PLC），型式为西门子Simatic S7-300，带24 伏直流过压保护和一块西门子TP177B（5.4 英寸）触摸板，安装在公共控制面板的前门上。
PLC 可以在以下基本功能方面编程：
通过客户控制系统（ZLT）的触点，从工厂的功率（两点控制）或温度要求（热控制操作）方面来选择燃气发电机组
通过PT 100 温度传感器，依据回流加热水的温度来进行热控制操作。依据热量要求来启动或停止模块，包括为额外的温度要求而选择最多2 台高峰期锅炉。
通过TTY 接口，数据从TEM 联接到Simatic S7 PLC。
通过总线Profibus DP 或CAN-Bus 接口，数据从发电机多功能继电器联接到Simatic S7 PLC的。
在TP 177B 触摸板（德文/英文）上可视化显示所有燃气发电机组的操作与故障消息。
针对同一个操作时长而对所有模块的操作时间进行平均化（通过选择不同的发电机组来实现）。
所有模块故障消息集合的额外显示和记录
分配示例（最多16 件/针对各个项目分别确定）：
中央控制系统的熔断器动作
过压/欠压故障
过频/欠频故障
电源/相矢量转移故障
总电源耦合开关开闸/跳闸
房间通风系统故障
注油泵故障
新油箱放空
新油箱满溢
废油箱充满
废油箱满溢
等等
包含在供货范围内
包括所有模块的孤岛并联操作
主网监控 (U < 85%, U > 115%)
主网断路器的控制，必要时还有交流发电机耦合开关的控制
孤岛并联操作中燃气发电机组取决于负载的启动与停机（每台发电机组最低功率30％，为附加发电机组启动期间的额外消耗负载保留的功率，等等）
运行的MWM 发电机组之间分担有效负载
在主网通电并重新稳定后，与主网并联操作的重新同步
辅助面板电源的切换（2 个分开的电源）
需要提供客户的单线，并需要遵守MWM 的载荷步。用电设备的启动功率对载荷步大有关系。
所有模块压缩空气供给系统的压缩机控制
400 伏压缩空气供给系统（电动压缩机）的控制（以星形－三角形方式启动），包括对自动疏水和“过载”故障消息的控制，对压缩机运行期间调速器油压的监控，必要时燃气发电机组将被停机，然后“油压低”的故障消息将显示出来。
所有模块警示系统的安装
燃气警示系统的安装（传感器和燃气警示系统不由开关设备制造商供应，而必须由MWM 单独订购）
主电网中接出的辅助电源的主熔断器，大约xxA，3 极
对燃气警示系统所发出的故障消息的处理（对于第1 阶段，所有风机打开，向TEM 附加故障消息系统发送警示/对于第2 阶段，燃气发电机组将被紧急关机，400 伏辅助电源主熔断器会被打开，向TEM 附加故障消息系统发送发电机关机消息）
将所有燃气发电机组的操作消息和故障消息（TEM 和发电机数据）在256 色西门子MP 彩色图形触摸屏上进行视觉化显示
规格：10 英寸（不适用基本显示范围的TP 177B）
以下系统图片（德文/英文）都经过视觉化处理：
整个系统的电气单线图，发电机组、交流发电机和总电源变压器用图符表示
液压流程图，并指示出来自TEM 和交流发电机的最重要的数据，对混合冷却回路/紧急冷却回路的台式散热器的视觉化，以及通风设备和润滑油供给系统的视觉化
所有模块的状态显示（开启/关闭/故障，等等）
对来自TEM 模块（燃气引擎）和多功能继电器（交流发电机）通过接口发送的所有操作消息和故障消息提供中央显示所有其它必要设置/控制器等的配置（语言和用户管理）
通信接口
接口：工业以太网向客户控制系统（包括一台接口终端）传输所有测定数值，以及来自TEM EVO 和多功能继电器的燃气发电机组报警消息。接口将被设计为从系统。
连接到ZAS-PLC 的意外消息和故障消息打印机
DIN A4，彩色激光打印机
控制柜加热
经由恒温器以及湿度调节器来控制控制柜加热230V/ 0.1kW
注意事项：必须由开关设备供应商或者授权的MWM 人员来调试开关设备，否则不承担质保。 原件下载： 
| 
