Figure 1-2. percentage restraint characteristic, Table 1-1. multiples of tap, O table 1-1 and figure 1-2. table 1-1 – Basler Electric BE1-87T User Manual

Page 18: N figure, N figure 1-2

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BE1-87T General Information

9171300990 Rev V

Table 1-1. Multiples of Tap

Front Panel Setting %

Maximum Restraint

Current At Minimum

Pickup In Multiples of

Tap

2.33 1.75 1.40 1.17 1.00 0.875 0.778 0.700 0.636 0.583

Figure 1-2. Percentage Restraint Characteristic

Second-Harmonic Restraint Inhibit of the restrained output occurs when the second-

harmonic component exceeds a pickup setting which is 12%

of the operating current for single-phase units or 18% for

three-phase units.

Fifth-Harmonic Restraint

Inhibit of the restrained output occurs when the fifth-harmonic

component exceeds a pickup setting which is 35% of the

operating current.

Unrestrained Output

Pickup Range

Front panel thumbwheel switches adjust the pickup point of

the unrestrained output over a range of 6 to 21 times the tap

setting in increments of 1 x Tap.

Pickup Accuracy

3% of the front panel setting.