Standby Generators and Custom Commercial Generators for Sale
Humankind has become extremely dependent on electricity, without it we can’t run the household, keep on working, or do business. To assist…
Generation Of Induced Emf And Current
Figure 9 shows an insulated coil whose terminals are connected to a sensitive galvanometer (G). There is a bar magnet, AB, close to…
Exact Voltage Drop
In Figure 1.40, the exact voltage drop is AH instead of AG. During calculation of approximate voltage drop, AG has already been calculated. If GH is being added to AG,…
Kapp’s Regulation
Kapp had designed a diagram shown in Figure 1.42 to determine the regulation at any power factor. The description of the construction…
Losses In A Transformer
Two types of losses occur in a transformer: Core loss or iron loss occurs in a transformer because it is subjected to…
Open Circuit Test Or No-Load Test
Figure 1.35 Open Circuit Test From this test, we can determine core loss and no-load current (I0) of the transformer. Figure 1.35 shows…
Parallel Operation Of Single-Phase Transformer
It is required to connect a second transformer in parallel with the first transformer if the load exceeds the rating of the…
All-Day Efficiency
The ratio of output in watts to input in watts is called commercial efficiency of a transformer. Distribution transformers are used for supplying lighting…
Basic Terms In Electrical Machine
INDUCED EMF An emf is induced in the conductor either (i) dynamically or (ii) statically. In the first case, the conductor will…
Buchholz Relay
Figure 1.19 shows Buchholz relay having two elements mounted in a small chamber. It is located in the pipe connection between the…