Research on Setting Calculation of Zero Sequence Current Inverse Time Limit Protection Based on Intelligent Control Grid

2021 ◽  
pp. 422-426
Author(s):  
You Yu ◽  
Jingfu Tian ◽  
Tao Li
Keyword(s):  
Intelligent Control ◽  
Time Limit ◽  
Control Grid ◽  
Zero Sequence ◽  
Limit Protection ◽  
Setting Calculation

scholarly journals Research on Optimal Coordination and Algorithms of Microprocessor-based Inverse Time Backup Protection

2021 ◽  
Vol 256 ◽  
pp. 02036
Author(s):  
Xiaoyang Wang ◽  
Zhongqing Li
Keyword(s):  
Characteristic Curve ◽  
Expansion Method ◽  
Time Limit ◽  
Important Research ◽  
Distance Protection ◽  
Safe Operation ◽  
Simulation Experiments ◽  
Backup Protection ◽  
Optimal Coordination ◽  
Limit Protection

Backup protection plays an important role in the safe operation of power grid, and it has important research value in the field of power system relay protection. Firstly, the research status and development opportunities of inverse time limit protection are analyzed, and then the best cooperation between inverse time limit protection and distance protection is discussed theoretically. According to the time constraint relationship in the protection range, an objective function satisfying the selectivity and speed is proposed. Secondly, in view of the difficulty in calculating the inverse time characteristic curve, a processing algorithm combining Taylor expansion method and look-up table method is proposed. Finally, the effectiveness and practicability of the method are verified by simulation experiments.

KOMPILASI HUKUM ISLAM (KHI) DAN PENDAPAT MADZHAB SYAFI’I TENTANG BATASAN MASA TUNGGU SUAMI/ISTERI MAFQUD

2018 ◽  
Vol 2 (1) ◽  
pp. 129
Author(s):  
Novita Dwi Lestari
Keyword(s):  
Islamic Law ◽  
Time Limit

mafqud is a person who has no news, unknown where it exists, whether alive or dead. Mafqud is one of the reasons for the divorce, which by court verdict contained in article 116 letter b Compilation of Islamic Law (KHI). in addressing mafqud matters KHI provides a limit waiting for 2 years, where as in the school of Shafi'i in qaul jadidnya give time for 90 years, and in his other opinion (qaul qadim) give a time limit for 4 years, then undergo iddah dead for 4 months and 10 days.

Developing Schedule With Linear Programming (Case Study: STTF II Project Komplek Sukamukti Banjaran)

2020 ◽  
Vol 4 (02) ◽  
pp. 34-45
Author(s):  
Naufal Dzikri Afifi ◽  
Ika Arum Puspita ◽  
Mohammad Deni Akbar
Keyword(s):  
Linear Programming ◽  
Objective Function ◽  
Project Scheduling ◽  
Time Limit ◽  
Minimum Time ◽  
Service Cost ◽  
Trade Off ◽  
Overtime Work ◽  
The Cost

Shift to The Front II Komplek Sukamukti Banjaran Project is one of the projects implemented by one of the companies engaged in telecommunications. In its implementation, each project including Shift to The Front II Komplek Sukamukti Banjaran has a time limit specified in the contract. Project scheduling is an important role in predicting both the cost and time in a project. Every project should be able to complete the project before or just in the time specified in the contract. Delay in a project can be anticipated by accelerating the duration of completion by using the crashing method with the application of linear programming. Linear programming will help iteration in the calculation of crashing because if linear programming not used, iteration will be repeated. The objective function in this scheduling is to minimize the cost. This study aims to find a trade-off between the costs and the minimum time expected to complete this project. The acceleration of the duration of this study was carried out using the addition of 4 hours of overtime work, 3 hours of overtime work, 2 hours of overtime work, and 1 hour of overtime work. The normal time for this project is 35 days with a service fee of Rp. 52,335,690. From the results of the crashing analysis, the alternative chosen is to add 1 hour of overtime to 34 days with a total service cost of Rp. 52,375,492. This acceleration will affect the entire project because there are 33 different locations worked on Shift to The Front II and if all these locations can be accelerated then the duration of completion of the entire project will be effective

The Effect of T-Commerce Scarcity Messages and Price Policies on Attitudes and Purchase Intention

2019 ◽  
Vol 118 (1) ◽  
pp. 42-47
Author(s):  
KwangSeok Han
Keyword(s):  
Statistical Analysis ◽  
Purchase Intention ◽  
Time Limit ◽  
Discount Factor ◽  
Limited Time ◽  
Price Discount ◽  
Discount Price ◽  
Strategic Plans ◽  
Factor Design ◽  
The Difference

Background/Objectives: This study investigated differences in the attitude of users according to type of scarcity message and price discount conditions to compose T-commerce sales messages and search for effective strategic plans. Methods/Statistical analysis: This study empirically verifies the difference in promotion attitude and purchase intention between the type of T-Commerce scarcity message (quantity limit message / time limit message) and the price discount policy (price discount / non-discount) message. For this purpose, 2 (scarcity type: limited quantity, limited time) X 2 (with or without price discount: price discount, no price discount) factor design between subjects was used.

Sign in / Sign up

Export Citation Format

Share Document