Answer Posted / karun
Inverse Definite Minimum Time Lag = IDMT relay
It's a electromagnetic type rotating disk relay.
Tripping time of relay decreases with increasing fault current.
Read more:
http://wiki.answers.com/Q/What_is_idmt_relay#ixzz18ZiYIQIj
| Is This Answer Correct ? | 4 Yes | 0 No |
Post New Answer View All Answers
How will be the single line diagram of series trip HT breaker? how it works?
what are the advantage and dis-advantage of 3 phase 4 wire energy meter?
Give some differences between open loop and closed loop control systems.
how invertor convert the dc into ac give brif detail
What is transient response?
What are the internal and external faults?
what is the responsibility of C license holder in industry?
why swinburnes test cannot be performed on series machines?explain
Dear all, I just want to ask an expert on this forum for some insights. For the magnetic balance test, when applied voltage on a Delta-Star transformer e.g. Dyn11, the following relationships apply for HV side: 1. H1-H2 = H2-H3 H3-H1 2. H2-H3 = H3-H1 H1-H2 3. H3-H1 = H1-H2 H2-H3 For the LV side also: 4. X1-X0 = X2-X0 X3-X0 5. X2-X0 = X3-X0 X1-X0 6. X3-X0 = X1-X0 X2-X0 Is there a similar pattern for Y-d, Y-Y, D-d? And how about Y-z, D-z, Z-y transformers? I've tested a YNzn5 transformer and for LV side I don't see the pattern. In this particular case I got for LV side the following (see values below): H1-H0 H2-H0 H3-H0 X0-X1 X0-X2 X0-X3 128.0 119.9 7.2 29.2 13.3 15.8 70.7 128.4 59.2 23.4 22.0 3.6 7.2 120.1 128.1 13.4 29.3 15.8 What is the relationship here for LV? For row 1 I see the relationship, for row 3 I also see but it's shifted, but for row 2 I don't see such relationship. Any suggestions, answers, someone?
I am getting above 60 V as open delta voltage against single phase unit ICT at tertiary delta formed and ICT getting trippped on NDR. ICT tested and found in order. PTs provided on tertiary are tested and in order. what may be the reason?
How to know the following data of synchronous generator 1. D-Axis Unsaturated Reactance 2. D-Axis Unsaturated Transient Reactance 3. D-Axis Unsaturated Sub - Transient Reactance
In the N-series schneider reclosers. What is the difference between current during fault time and current at tripping? This appears in the Event log in an event of a trip out.
Explain what is electric traction?
sir vizag steel ka junior trainee ka paper kitne number ka ayega
How is the percentage impedence of a transformer fixed at design stage???
