Why neoprene rubber bellows are used in IPBD?

Why neoprene rubber bellows are used in IPBD?
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1 Answer

Answer :

Neoprene rubber bellows are used near the terminals of the equipment and also at building wall from indoor to outdoor area to allow thermal expansion and to minimise vibrations. 
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Related questions

Why neoprene rubber bellows in generator IPBD?

Description : Why neoprene rubber bellows in generator IPBD?

Last Answer : Prevent vibrations transmitted from generator to IPBD.  

What are the tests to be carried during PM checks of IPBD?

Description : What are the tests to be carried during PM checks of IPBD?  

Last Answer : a) Physical inspection of bus for any spark or overheating or discoloration. b) Physical inspection of copper braided flexibles for discoloration. c) Physical inspection of inspection window gaskets, seal off ... Tan-delta test of IPBD m) IR value measurement n) Cleanliness checks entire IPBD. 

What are the torque settings used in IPBD connection?

Description : What are the torque settings used in IPBD connection?

Last Answer : M12 (Nut bolt) 4506 100 kg-cm or 55 NM M16 (Nut bolt) 9006 250 kg-cm or 80 NM M20 (Nut bolt) 18006300 kg-cm or 100 NM 

What are the isolations required for working on IPBD/ Generator?

Description : What are the isolations required for working on IPBD/ Generator?

Last Answer : a. Generator field breaker open and tagged. b. GT breaker open and earth switch closed.  c. Barring gear motor stopped and tagged. d. Generator PT's isolated and tagged. e. CB 472 and CB 474 open ... 's are isolated and tagged. f. Before doing any work on brush gear 64F1 relay to be taken out. 

What is the protection for IPBD?

Description : What is the protection for IPBD? 

Last Answer : Generator – GT overall differential protection.  

What is use of hot air blower in IPBD?

Description : What is use of hot air blower in IPBD?

Last Answer : To remove moisture and to prevent moisture condensation inside the duct at commissioning time or in long shutdown periods. 

Why seal-off bushings are used in IPBD?

Description : Why seal-off bushings are used in IPBD?  

Last Answer : To prevent interchange of air at different temperature and leakage of hydrogen or infiltration of dust into the bus duct. 

Why aluminium bus bars are silver-plated in IPBD?

Description : Why aluminium bus bars are silver-plated in IPBD?

Last Answer : Aluminium bus bars are silver-plated at flexible connection to prevent the galvanic corrosion ant also for low contact resistance. 

What are the salient features of IPBD?

Description : What are the salient features of IPBD?  

Last Answer : a. This for a vital link between generator, GT, UAT, SPPT, SET and neutral grounding transformer. b. The continuous enclosure operating at ground potential limits the leakage flux outside the enclosure ... maintenance is nil. j. Separate parts erected IPBD. Hence changing parts makes it easy. 

Why flexible expansion joints are used in IPBD?

Description : Why flexible expansion joints are used in IPBD?

Last Answer : To cater thermal expansion and contraction due to heating and to eliminate mechanical vibrations to the equipment. 

What is type of nut and bolts are used in IPBD?

Description : What is type of nut and bolts are used in IPBD?  

Last Answer : Non-magnetic stainless steel nut and bolts are used in IPBD to restrict magnetic effect at joints.  

Synthetic rubber (Neoprene) is:

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Description : Styrene Butadiene Rubber; Neoprene; Thiokole are the examples of?

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List any two advantages and two applications of Bellows.

Description : List any two advantages and two applications of Bellows.

Last Answer : Advantages: - 1. It is used to measure absolute & differential pressure. 2. It is used to measure low or medium pressure rang. 3. Bellow joints do not require access; ... . 3. low pressure gauges are suitable for chemical, petrochemical, plant construction, and cleanrooms

Compare Bellows and diaphragm w.r.to construction, sensitivity, working principle and application.

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Description :  Draw the following and write application of each. i. Well type manometer ii. Bellows.

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List two advantages of capsule bellows.

Description : List two advantages of capsule bellows.

Last Answer : Advantages of capsule 1. High accuracy 2. Suitable for low pressure measurement.  Advantages of bellows 1. Good for low to moderate pressure range. 2. Adaptable for absolute and differential pressure.

Which of the following is not an elastomer? (A) Polyisoprene (B) Neoprene (C) Nitrile-butadiene (D) None of these

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Last Answer : (B) PVC

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Last Answer : (C) The presence of chlorine atoms in its monomer

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Classify the polymers as addition and condensation polymer— Nylon 6, Neoprene and PVC.

Description : Classify the polymers as addition and condensation polymer— Nylon 6, Neoprene and PVC.

Last Answer : Ans: Nylon 6 —Condensation polymer  Neoprene and PVC— Addition polymer.

Arrange the following Polymers in increasing order of inter molecular forces Nylon 6, Neoprene and PVC

Description : Arrange the following Polymers in increasing order of inter molecular forces Nylon 6, Neoprene and PVC

Last Answer : Ans : Nylon 6, PVC and. Neop 

Write the name of neoprene polymer?

Description : Write the name of neoprene polymer? 

Last Answer : Ans: Chloroprene