Posts
TRANSFORMER PROTECTION
- Get link
- X
- Other Apps
There are different kinds of transformers such as two winding or three winding electrical power transformers , auto transformer , regulating transformers, earthing transformers , rectifier transformers etc. Different transformers demand different schemes of transformer protection depending upon their importance, winding connections, earthing methods and mode of operation etc.It is common practice to provide Buchholz relay protection to all 0.5 MVA and above transformers. While for all small size distribution transformers , only high voltage fuses are used as main protective device. For all larger rated and important distribution transformers, over current protection along with restricted earth fault protection is applied. Differential protection should be provided in the transformers rated above 5 MVA. epending upon the normal service condition, nature of transformer faults, degree of sustained over load, scheme of tap changing, and many other factors, the suitabl...
How to create your first robot
- Get link
- X
- Other Apps
There are few simple steps to create your robot. COMPONENT LIST:- first decide which type of wheels you want to use for your robot, next is which type of boot CHASSIS you want to use. next which rpm motor u are using (100rpm, 300rpm, 500rpm). next is cable wire, switches and switch box (4 wire cable) or you will use a strip wire Use 12VDC/2A Power supply. Two bidirectional Switches for Remote. How to make connection:- first step is the remote connections. we required two switch for that and each switch consists of six points show in above fig. Connect end terminals of a switch in cross as shown in figure. Remaining four terminals needs to be connect to 4 different motors in as shown in figure.