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Liu Y.-W.,China Electric Power Research Institute | Zhou H.,Xian Xd Swichgear Electric
Gaoya Dianqi/High Voltage Apparatus | Year: 2011

The intelligent component is the core of the high voltage switchgear which is assembled by a number of intelligent electronic devices(IED) with different functions. The information flows about measuring, controlling, monitoring data between lEDs, between IED and the components of the switchgear, and between IED and advanced application systems should be well designed to take on the intelligent functions. This paper presented an information flow scheme designed for smart high voltage switchgear. The scheme can be applied to develop a smart HV switchgear. Source


Wang C.-C.,Xian High Voltage Apparatus Research Institute | Xu S.,Xian Xd Swichgear Electric
Gaoya Dianqi/High Voltage Apparatus | Year: 2011

There exist two technical solutions for a 1100 kV GIS in the State Grid of China Ultra High Voltage AC Pilot Project. One adopting a double-break circuit breaker with a closing resistor, whose disconnector has a resistor; the other adopting four-break circuit breaker with closing resistor, whose disconnector has no resistor. This paper introduces the two technical solutions from such aspects as gas pressure, dielectric dimension, choice of interrupting units, specification of a circuit breaker with a closing resistor, and design of disconnectors. Moreover, it illustrates the difference between the two solutions in layouts for UHV GIS and HGIS substations. Conclusions are drawn that both solutions have self characteristics and can meet the requirements of UHV substation for technical parameters and layout. Source


Nan F.,Xian Xd Swichgear Electric
Gaoya Dianqi/High Voltage Apparatus | Year: 2015

In order to clarify SF6 gas-insulated metal-enclosed switchgear(GIS) housing flange flow capacity on the bus structure design. Comprehensive analysis of the various factors that affect housing flange design, analyzes the relationship between the housing flange sealing structure and GIS equipment housing flange between flow capacity. Through computational analysis and experimental verification, demonstrates the rational design of the structure housing flange sealing performance can meet the shell, while the use of GIS for flange surfaces ensure flow-through performance requirements. ©, 2014, Xi'an High Voltage Apparatus Research Institute. All right reserved. Source


Hu X.-H.,Xian Xd Swichgear Electric
Gaoya Dianqi/High Voltage Apparatus | Year: 2010

This paper elaborates hybrid gas insulated switchgear (HGIS) concept, introduces its technical characteristics, advantages and project application characteristics. The comparisons of the comprehensive technical economy performance between HGIS, AIS and GIS have been carried on. It is shown that HGIS indeed has high reliability, high performance-to-price ratio, and is worth widespread applied in 550 kV (330 kV) power station. Moreover, the future technological development direction of 550 kV HGIS is pointed out. Source


Zhu Q.-Q.,Xian Xd Swichgear Electric
Gaoya Dianqi/High Voltage Apparatus | Year: 2013

Motion simulation technology in advanced design methodology for high-voltage switchgears is very important because of its performance in quantificationally analyzing kinematic and dynamic characteristics of the switchgears. This paper introduces some methods for constructing motion simulation models in UG_Motion environment, and discusses 3D collision and flexible motion simulation models in detail. Moreover, four real illustrative examples, i.e. contacts collision simulation, open-after-close analysis of spring operating mechanism, ratchet wheel walloping detent simulation for spring operating mechanism, and cracking simulation of a insulation link, are taken for demonstrating the feasibility and availability of the motion simulation technology. Conclusion can be drawn from these examples that the motion simulation technology can be applied to quantificationally kinematic and dynamic analyses for high-voltage switchgears. Source

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