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What or Which type of transformer can serve as both a ratio device and an isolating device?
Instrument Transformer
What else can I help you with?
What is the function of fins in transformer?
Fins in a transformer serve as a heat dissipation mechanism to help regulate the temperature of the transformer. Transformers can generate a significant amount of heat during operation due to electrical losses, and the fins provide a larger surface area for heat to dissipate into the surrounding air. This helps prevent overheating and ensures the transformer operates within its temperature limits, ultimately improving its efficiency and longevity.
What is thermistor diode?
A semiconductor device that is particularly sensitive to changes in temperature, permitting it to serve as an accurate measure of temperature.
How do you calculate knee point voltage?
Step 1: calculating knee point voltage Vkp Vkp = {2 x Ift (Rct+Rw)}/ k Vkp = required CT knee point voltage Ift = max transformer through fault in ampere Rct = CT secondary winding resistance in ohms Rw = loop impedance of pilot wire between CT and the K = CT transformation ratio Step 2: calculate Transformer through fault Ift Ift = (KVA x 1000)/(1.732 x V x Impedance) KVA = transformer rating in kVA V = transformer secondary voltage Impedance = transformer impedance Step 3: How to obtain Rct To measure when CT is produce Step 4: How to obtain Rw This is the resistance of the pilot wire used to connect the 5th class X CT at the transformer star point to the relay in the LV switchboard. Please obtain this data from the Electrical contractor or consultant. We provide a table to serve as a general guide on cable resistance. Example: Transformer Capacity : 2500kVA Transformer impedance : 6% Voltage system : 22kV / 415V 3phase 4 wire Current transformer ratio : 4000/5A Current transformer type : Class X PR10 Current transformer Vkp : 185V Current transformer Rct : 1.02½ (measured) Pilot wire resistance Rw : 25 meters using 6.0mm sq cable = 2 x 25 x 0.0032 = 0.16½ Ift = (kVA x 1000) / (1.732 x V x impedance) = (2500 x 1000) / (1.732 x 415 x 0.06) = 57,968 round up 58,000A Vkp = {2 x Ift (Rct+Rw) } / k = {2 x 58000 (1.02+0.16) } / 800 = 171.1½
Can 3 single phase transformers can replace 1 three phase transformer?
Yes, you can use three single phase transformers on three phase applications and interconnect them to serve as a single transformer or you could use one single phase transformer fed from two of the three lines in a step down application.
What is an injection substation?
An injection substation is a substation where a higher voltage is stepped down to a lower voltage,especially for transmission in a densely populated area.The transformer involved is often in the MVA range,so that the output can serve a wide area,or large consumers. In Nigeria,the common injection stations are: 15MVA or 7.5MVA 33/11kv injection substations. An injection substation is a substation where a higher voltage is stepped down to a lower voltage,especially for transmission in a densely populated area.The transformer involved is often in the MVA range,so that the output can serve a wide area,or large consumers. In Nigeria,the common injection stations are: 15MVA or 7.5MVA 33/11kv injection substations.
Can microphone serve as output device?
NO
What is the metrical device for the line they also serve who only stand and wait?
anapestic
What is the function of fins in transformer?
Fins in a transformer serve as a heat dissipation mechanism to help regulate the temperature of the transformer. Transformers can generate a significant amount of heat during operation due to electrical losses, and the fins provide a larger surface area for heat to dissipate into the surrounding air. This helps prevent overheating and ensures the transformer operates within its temperature limits, ultimately improving its efficiency and longevity.
Why to use four diodes when two diodes also can serve the purpose in bridge rectifier?
Four diode rectifier not require a center tapped transformer.
What is an electronic device that can serve as a gate or switch for an electrical signal and can amplify the flow of electricity?
transitor
10 What purpose does a hostname serve on a router?
provides device identification to users logging on remotely
What function does a capacitor serve in an auto transformer?
An autotransformer does not normally use any capacitors as it is a transformer with one winding and the lower voltage is taken from a tap part-way up the winding. A capacitor could be added if there is a concern about the power factor presented by the autotransformer to the supply.
How much time do you serve in jail for forged writing or device writing?
depending on how bad the forgery is it depends
What peripheral cannot serve as both input and output devices?
A scanner serves as an input device only.
What is thermistor diode?
A semiconductor device that is particularly sensitive to changes in temperature, permitting it to serve as an accurate measure of temperature.
How do you calculate knee point voltage?
Step 1: calculating knee point voltage Vkp Vkp = {2 x Ift (Rct+Rw)}/ k Vkp = required CT knee point voltage Ift = max transformer through fault in ampere Rct = CT secondary winding resistance in ohms Rw = loop impedance of pilot wire between CT and the K = CT transformation ratio Step 2: calculate Transformer through fault Ift Ift = (KVA x 1000)/(1.732 x V x Impedance) KVA = transformer rating in kVA V = transformer secondary voltage Impedance = transformer impedance Step 3: How to obtain Rct To measure when CT is produce Step 4: How to obtain Rw This is the resistance of the pilot wire used to connect the 5th class X CT at the transformer star point to the relay in the LV switchboard. Please obtain this data from the Electrical contractor or consultant. We provide a table to serve as a general guide on cable resistance. Example: Transformer Capacity : 2500kVA Transformer impedance : 6% Voltage system : 22kV / 415V 3phase 4 wire Current transformer ratio : 4000/5A Current transformer type : Class X PR10 Current transformer Vkp : 185V Current transformer Rct : 1.02½ (measured) Pilot wire resistance Rw : 25 meters using 6.0mm sq cable = 2 x 25 x 0.0032 = 0.16½ Ift = (kVA x 1000) / (1.732 x V x impedance) = (2500 x 1000) / (1.732 x 415 x 0.06) = 57,968 round up 58,000A Vkp = {2 x Ift (Rct+Rw) } / k = {2 x 58000 (1.02+0.16) } / 800 = 171.1½
What purpose does a hub serve?
The hub is a device for connecting multiple ethernet devices together and making them act as a single network segment.
