Hello!
I'm performing DC test to verify the outer sheath integrity on a MV 36kV cable after laying, according to IEC 60840 & IEC 60229 standards. I'm using a BAUR testing equipment. According to the manufacter, the test equipment negative (-) terminal should be connected in the outer sheath and...
Hello,
I'm very interested in PLC systems. I have a Line Trap and a Capacitive Coupling Voltage Transformer installed in a 220kV substation.
I would like to apply the formulas and get the values that leave me to understand how these system works. Where could I find a good guide to sizing and...
Hello
Testing a HV Voltage Transformer, using a OMICRON equipment (that must be connected to earth) I must inject in the primary side a test voltage, and I want to check the phase-angle in the secondary of the VT. Why the phase-angle should be near zero volts?
Thank you in advanced
Hello everyone,
I'm testing a 220kV Voltage Transformer with a CPC100 Omicron device.
One of the test that i've to perform is the phase checking. I've a three-phase VT of a bank of three single phase VTs.
I'll do a primary injection and measure the voltage between phases and neutral in the...
Hello every one,
I've a CT marshalling box that getter 3 CT's (one for each phase).
These box received the wiring cables from each CT secondary terminal box and from that marshalling box it'll be connected the cables that goes to the meters and relays installed in a control house.
To connect...
Hello again everyone.
I'm studing the CT testing issue, because a I've to prepare the tests to go on site.
I have to test a Multi-core CT: 400A/1-1-1
secondary N1: metering
secondary N2: protection
secondary N3: protection
The secondary nix of the CT is connected to a marshalling box that is...
Hello,
I need your help regarding with this issue. I'm not an electrical enginnering, but currently i working in this fieid area.
My doubt is: from what i have been reading, the S2 of a Current Transformer should be ground. In that case the current that flows in the secondary will flow to...
