Figure 5-3. type c sensing test connections -6, Figure 5-3 – Basler Electric BE1-32R User Manual

Page 78

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NOTES

1. Type C (Scott or T-connected) sensing is calibrated in three-phase watts. If a wattmeter is not available, us the

following equation to determine the pickup current that corresponds to the desired overpower or underpower

pickup in watts. Adjust the relay test set to produce this current value.

𝑊 = √3 × 𝑉

𝐴

× 𝐼

W is the desired pickup in watts.

V is the applied voltage.

I is the applied current.
With a wattmeter, W is determined by the following equation.

𝑊 = 2 × 𝑊𝑎𝑡𝑡𝑚𝑒𝑡𝑒𝑟 𝑅𝑒𝑎𝑑𝑖𝑛𝑔

2. Terminals 1 and 10 are the overpower trip output device connections for both BE1-32R and BE1-32O/U.

Terminals 2 and 10 are the underpower output connections for the BE1-32O/U.

3. Terminals 17 through 20 are auxiliary output contacts. Determine the auxiliary output contact configuration by

referring to the relay style number.

Figure 5-3. Type C Sensing Test Connections

5-6

BE1-32R, BE1-32O/U Testing

9171100990 Rev T

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