Frequency response, Transient response, Harmonic response – Basler Electric BE1-50/51B-122 User Manual

Page 19: Frequency response -7, Transient response -7, Harmonic response -7, Figure 1-3. burden characteristics -7

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Figure 1-3. Burden Characteristics

Frequency Response

A change of ±5 Hz from the nominal 50/60 Hz current causes <0.5% change in the current required for
pickup.

Transient Response

<10% overreach with system time constants up to 40 ms.

Harmonic Response

Figure 1-4 shows that a relay set for 1 ampere pickup would pick up at 0.96 amperes with a current
containing 40% seventh harmonic. This corresponds to a 10:1 rejection ratio. Other conditions may be
evaluated in the same manner.

9252000981 Rev H

BE1-50/51B-219/-226 General Information

1-7

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