Answer / prakash

If your concerns with domestic water pump dry run control,
then you can use a floating switch at level point that can
be connected to series with DOL starter if already installed.

Answer / jimmy

Just put level switch NC contact in series with overload
contacts in the Starter Circuit.

Answer / kamal

By using under current relay , setting is no load current,
below this level it trip.

Answer / parth belani

We can protect a pump from no load running by using a
minimum recirculation line. This line connects outlet with
the main tank or the inlet. so there will always be some
minimum flow through the pump.

Answer / raghu

Use a dryrun protection

Answer / sandip paithankar

put a moisture sensor in land which need to wet on starting and ending point of it.then give to transistor then micro controller do if else program and understand the condition of land it may wet or dry.then give command to relay to operate the water pump    

Answer / ks

by using the level transmitter and with out plc with some
no nc additional elements in the contactor it is possible
to control.

Answer / subrat.das1985

i think we can over come from this problem by using proximity sensor.or by using timer .

Answer / mkk

by using level transmitter. and use it in plc to switch off
the pump when level remains 20 %.

What is the use of starter in tube light fitting.how it works.

3 Answers   JSW,

how to claculate the ups load in KVA pls give the if any fourmoul?

4 Answers  

If you have an earth with pilecap then your resistance is really low. why and how?

0 Answers  

Why electrical heaters are not provided with overload relays in circuits

1 Answers  

Hi Recently I got one formula that is Impedence of Xformer = Rated KVA/Root 3 * secondry voltage OF Xformer. Is it Right??????

2 Answers  

which type of motor complete it's one rotation in 30 day's.

2 Answers  

What is CVT and what is relation with wave trap?

0 Answers  

what is the calculation of current when a clampmeter is attached to two phases of any drives.

3 Answers   ABB,

WTA used cb?

0 Answers   Tagros,

We are using 4 MVA transformer and we provided 2 separate earthing pit for Body and 2 separate earthing pit for neutral, can we connect separate body earthing pit to other earthing pit (Equipment earthing)?

1 Answers  

if a train is running on a speed of 40 K MPH and crosses a individual passing by him in 48 secs who is riding a horse with a speed of 25 K MPH. what is the length of the train?

2 Answers  

What is the Resposiblity of Electrical Utility Engineer

0 Answers