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JY-ZK Intelligent

DC Generator Lubrication (Sealed) Pump Control Cabinet

JY-ZK智能型

发电机润滑（密封）油泵控制箱

Operation Manual

使用说明书

Xi’an Jinyuan Electric Power Equipment Co., Ltd.

西安金源电力设备有限公司

一、Overview 概述

JY-ZK Intelligent DC motor control cabinet lubricating products are aimed at generating power plant system design a new type of lubricant replacement products, mainly used for steam turbine and generator of the main bearings, thrust bearing and the disk devices to provide lubricating oil vehicle control, as well as the generator seal oil system provides oil to ensure the safe operation of the pressure of the oil control. Generator control system equipment lubricants usually are: lubricating oil tank, main oil pumps, AC lubricating oil pump (#1 machine 2 Units), Oiler, and Oil cooler, emergency DC pumps, jacking oil pump system, oil-fume separate devices and purifying System and so on. In normal operation, all the lubricant oil supply from the main oil pump. When the main pump failure resulted in reduced a certain value, AC, DC lubrication pump automatically linkage.

JY-ZK智能型直流润滑电机控制箱系列产品是针对发电厂发电机润滑油系统设计的新型换代产品，主要用于汽轮机和发电机各主轴承、推力轴承和盘车装臵提供润滑油的控制，以及对发电机密封油系统提供油源，确保系统安全运行的压力油控制。发电机润滑油控制系统设备通常为：润滑油箱，主油泵、交流润滑油泵（#1机2台）、注油器、冷油器、事故直流油泵、顶轴油泵系统、油烟分离装臵和净油系统等组成。系统在正常运行时，所有润滑油的油量由主油泵供给。当主油泵故障导致油压降至一定值时，交、直流润滑油泵自动联动。

Traditional DC generators lubrication (sealed) pump motor control system for the 60's to start using the DC contact resistance switching, that is in DC motor armature circuit into the high-power resistor string, when the motor starts, through the step-down resistor to limit the motor starting current to rated current or speed to achieve a certain percentage, the adoption of DC contactor bypass resistance. This way to start the DC motor's advantages are: loop easy and cheap; its disadvantages are: 1, Resistors buck will start only when the motor start-up current to rated current of 2 times the DC system result in lower transient voltage affect the relay protection of the normal work. 2, DC Contactors used in many frequent contact adhesion and carbonation phenomenon.

传统的发电机直流润滑（密封）油泵电机控制系统为60年代开始使用的直流接触器切换电阻方式，即在直流电机的电枢回路中串入大功率电阻，当电机启动时，通过电阻降压来限制电动机的起动电流，使之电流或转速达到额定值的一定百分比时，通过直

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流接触器将电阻旁路。通过这种方式来启动直流电动机的优点是：回路简单，造价低；其缺点是：1、电阻降压起动时只能将电动机的启动电流降至额定电流的2倍，会造成直流系统的电压瞬间降低，以致影响到继电保护的正常工作，2、直流接触器在多次使用后经常发生触点粘连和碳化现象。

My company to develop and produce the JY-ZK intelligent DC generator lubrication (sealed) pump motor control cabinet is a modern power electronic devices, PWM technology, and PLC technology in one high-tech products. It can achieve soft smooth DC motor, the current non-mutant, and the DC system will not be affected; the use of high-power power electronic devices to eliminate the DC contactor contact adhesion happen; with Remote Control (DCS) and the nearest control in two ways; can fault self-diagnosis, overheating, and other protection in one; Chinese man-machine interface operation and information display.

我公司研制生产的JY-ZK智能型发电机直流润滑（密封）油泵电机控制箱是集现代电力电子器件、PWM技术、PLC技术于一体的高新技术产品。它可以实现直流电动机的平滑软起，电流不突变，且直流系统工作不受影响；采用大功率电力电子器件，杜绝了直流接触器触点粘连的发生；设有远控（DCS）和就近控制两种方式；可以进行故障自诊断、过热、等多种保护于一体；中文人机界面操作和信息显示。 二、Principle Outlined 原理简述

Adopting new PWM control of power electronic control mode of high-power semiconductor devices, conduction and shut off with PLC for the core management control, use voltage feedback form closed loop control of dc voltage, linear adjustment. According to proportional-plus-integral control realization not static difference velocity modulation function, realization direct current machine reliable soft start.

采用新型脉宽调制方式控制电力电子主控器件大功率半导体的导通与关断，以PLC为核心管理控制，利用电压负反馈形成闭环控制，进行对直流电压线性调节。根据比例积分调节实现无静差调速作用，实现直流电机可靠的软启动。 三、Control Features 控制特点

High-power semiconductor devices with high job switching frequency, the saturation voltage drop small, high input impedance, voltage-driven and so on. In the velocity modulation system, uses by the control amplifier to control DC motor power source. Average

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