Summation meters, Electrical Engineering

Assignment Help:

Summation Meters

Summation meters are other special categories of meters that are used for recording the total consumption of a consumer fed at more than one point. The major purpose for connecting a summation meter is to facilitate the correct recording of the Simultaneous Maximum Demand, because adding up of the MDs recorded through the individual meters, arithmetically might not be correct since of the possible diversity in their periods, even by the total unit consumption could be worked out arithmetically. There are a number of techniques for summing up the consumptions through one meter, some of that are as indicated below:

- Paralleling of the CT leads on the secondary side before linking them to the meter current coil.

- Providing for every phase, one intermediate CT, known as summation CT, along with a number of primary windings for connections to the secondaries of individual CTs and only one secondary winding to feed the meter current coil.

- Use of multiple current coils in the similar meter for direct connections to the individual CTs, the measuring elements being general to all for the similar phase.

- Having independent components for all CTs mounted on a general shaft of the similar meter so in which the shaft gets the total torque and records total consumption thereby.

- Divide elements to measure the consumption independently as in the preceding technique but having separate driving shafts connected to a general one through differential gears to record the total consumption

- Divide meters, every fitted with an electrical impulse transmitting device, to record the consumption at several points independently and pass on the impulses concurrently to a common meter that then records the total consumption.


Related Discussions:- Summation meters

Not gate- introduction microprocessors , Normal 0 false fals...

Normal 0 false false false EN-IN X-NONE X-NONE

Current flow through each resistor using mesh analysis, Find the current fl...

Find the current flow through each resistor using mesh analysis for the circuit below. Step : Determine the number of common nodes and reference node within the network

Define magnetic field, Define Magnetic field The area around a magnet i...

Define Magnetic field The area around a magnet is known as the magnetic field and it is in this area that the effects of the magnetic force formed by the magnet can be detected

Give the properties and application of bronze, Give the properties and appl...

Give the properties and application of bronze. Bronze : It is alloy of copper and tin. This alloy is very brittle and hard. Its corrosion resistance is better than brass. Bron

What is the speciality of a darlington transistor, Q. What is the specialit...

Q. What is the speciality of a darlington transistor? A darlington pair behaves like a single transistor with a very high current gain. The total gain of the darlington is the

Determine the service and backwash rates, Determine the Service and Backwas...

Determine the Service and Backwash Rates The system on site is a pressure sand filter, with a service curve. The filter is backwashed using the feed pump, at a higher flow rat

Obtain the truth table for the logic block, Q. Obtain the truth table for t...

Q. Obtain the truth table for the logic block shown in Figure

Show demagnetizing effect of armature reaction, Q. A20-hp, 250-Vshuntmotor ...

Q. A20-hp, 250-Vshuntmotor has a total armature - circuit resistance of 0.25  and a field-circuit resistance of 200.At no load and rated voltage, the speed is 1200 r/min, and the

Explain state-variable techniques, Q. Explain state-variable techniques? ...

Q. Explain state-variable techniques? The matrix formulations associated with state-variable techniques have largely replaced the block-diagram formulations. Computer software

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd