East China Power Grid Frequency Emergency Coordination Control System Passes Factory Acceptance Check

[China Instrument Network Instrument R&D] On March 10, 2017, the Huadong Power Grid Frequency Emergency Coordination Control System undertaken by the State Power NARI Stability Co., Ltd. passed the factory acceptance.


Participating in the acceptance of the State Grid DC Construction Department, the State Grid East China Power Control Center, the State Grid Jiangsu Power Control Center, China Academy of Electric Power, Zhejiang Electric Power Design Institute, State Grid Jiangsu Power Maintenance Branch and other units. Experts of the acceptance team reviewed and accepted the overall plan of the Huai'an auxiliary control station device, and conducted comprehensive tests on specific functions. They all agreed that the software logic and hardware functions of the Huai'an Assistant Control Substation of the East China Power Grid frequency emergency coordination control system meet the design requirements. Qualified by experience, agreed to the factory.

The main function of the East China Power Grid Frequency Emergency Coordinated Control System is to monitor the real-time running status of each DC, all pumping units and a large number of controllable loads. When the DC fault is blocked or the power is suddenly dropped, the power grid has a large power shortage and multiple DCs are generated. Power emergency boost, pumping and pump cutting, rapid cutting of control measures to interrupt the load, etc., as far as possible to avoid the low-level load reduction action of the third line of defense, reduce social impact.

The Huai'an converter station co-control device is part of the East China Power Grid's frequency emergency coordination control system and uses the SCS-500E series stability control platform from Guodian NARI. The device monitors the operation of 4 converters. When a DC fault occurs (including DC blocking and emergency downhill), the DC power loss is calculated, and the DC power loss is sent to the DC coordinated control master station. Simultaneously, the local DC power boosting function and the remote command are realized at the same time. Ground frequency confirmation function.

Guodian NARI SCS-500E type stability control device successively demonstrated Xiangjiaba-Shanghai ±800kV UHVDC power transmission demonstration project, ±800kV Jinsu DC transmission end power grid security and stability control system project, Three Gorges power station delivery project, and Jiangsu and Henan It has been widely used in security and stability control projects in Hubei, Anhui, Gansu, Qinghai, Shandong, and Liaoning, covering more than 30 provinces and cities across the country, and has played an important role in the safe and stable operation of power grid systems.

(Original title: State Power Nan Rui's East China Grid Frequency Emergency Coordination Control System Huai'an Converter Station Co-control Unit Passed Factory Acceptance)

Crane Gearbox

Crane Gearbox is an important component in a crane`s operating and Hoisting Mechanism. Its modular design maximizes the interchangeability of the gearbox parts, making it suited to be used universally even in foreign countries. Meanwhile, modularity in design also allows the parts to be freely used in different systems to constitute a different structure or layout design that fits a specific application.

Advantages

Greater contact ratio creates smoother operation while generating low noise.

Compact design

Resistant to high temperature, aging and wear

Technical Features

The transmission shafts are arranged in a zigzag pattern. This arrangement style increase the distance between transmission shafts with a given gearbox, thereby improving the load capacity of the gear.

Wide gear ratio improves the efficiency of the motor

Unique framework design of the gearbox makes the whole structure more stable and ensures a more solid footing.

Improved cooling fan and cooling coil design can effectively reduce the operating temperature of our crane gearbox.

The output shaft is available with the double lip oil seal to provide more secure seal, which allows the gearbox to be suitable for a wider range of applications.

Fluorine rubber seal

Applications

Beer Brewing Machinery, Beer Conveyor, Ferrous Metallurgy Facility, Warehouse and Logistics Equipment, Oil Drilling Machinery, Textile Printing Machinery, Stereoscopic Warehouse, Chemical Engineering Machinery, Light Industrial Machinery, Environmental Protection Equipment.

Gearbox

Crane Gearbox,Compact Designed Gearbox,Reduction Gearbox,Hoist Gearbox

Eurocrane (China) Co., Ltd. , https://www.eurocranegroup.com