MVT 171 is a neutral displacement protection unit, comprising two elements, namely element 1 & element 2, there by offering two stages of protection. Element 1, the first stage of protection is provided with Definite Time Lag (DTL). Element 2 has DTL or numerous IDMTL curves. One of the elements can also be put off, when it is not necessary.
- Capacitor bank
- Ungrounded/High impedance earthed systems
- AC Generators