Earth Leakage Relay Pdf

Connection check open short flush mount features version 8 04 user guide for model.

Earth leakage relay pdf.

Earth leakage relays nv zha this kind of relay is an electrical self holding type called as harmonic surge ready type and is suitable to use in the inverter circuit can to have the active filter and the dpdc circuit. Ultra immunized self reclosing earth leakage relays contactor contactor contactor x4 x4 n t x3 ta lcd display i n n t 6 to 80 a t lcd display n available in. Applications rec max mp. Types ac a si fault current ma maximum response time ms q 15 ma no tripping q 30 ma 300 ms.

ø 25 mm ø 35 mm ø 55 mm ø 80 mm ø 115 mm ø 140 mm ø 180 mm 220x105 mm 350x150 mm 500x200 mm. Manual test button for relay operation checking. The term h denotes harmonics prok dv s make h series is. Earth leakage circuit breaker or elcb.

If any current leaks from any electrical installation there must be any insulation failure in the electrical circuit it must be properly detected and prevented otherwise there may be a high chance of electrical shock if anyone touches the installation an earth leakage circuit breaker does it efficiently. Earth leakage protection response time of high sensitivity residual current devices 30 ma response time the response time of a residual current device is the time between the appearance of a dangerous leakage current and circuit power down. Means it detects the earth leakage current and. On request toroidal oval wgc series.

Measuring relay and protection equipment. The mh earth leakage relay series are combined with a wide range of zero phase current transformers with diameter sizes from 35mm to 140mm providing the maximum application flexibility for an effective protection in every point of the system. 02 4956 5899 fax. Measuring relay and protection equipment functional requirements for over under current protection.

If ample voltage seems across the elcb s sense coil it will turn off the power and remain. Earth leakage relay for non linear loads like ups invertor drives other applications h series elr. Realtime monitoring of leakage current. Elm earth leakage protection relay user manual 121408 issue 4 15 02 11 elm manual issue 4 121408 150211 pdf designed and manufactured in australia by ampcontrol pty limited acn 000 915 542 phone.

Insulation coordination for measuring relays and protection equipment requirement and tests. Programmable relay output programmable software lock selectable frequency 50 60 hz auto z c t.