GE DIAC 66K, Instruction Manual

Page: 51 / 59

GE Power Management DIAC Type 66K Digital Overcurrent Relay 7-
1
GEK-106621 7 SPECIFICATIONS
7
GEK-106621 7 SPECIFICATIONS 7.1 BURDENS
Burdens for the over-current units are listed in Table 7–1: BURDEN SETTINGS. Burdens decrease with in-
creasing current above minimum setting, due to the power supply shunting in the power supply circuit. Since
the power supply is the major portion of the burden, the burden for a given input current will be constant, irre-
spective of pick-up settings on both TOC and IOC units.
Figure 7–1: BURDEN CURVE
BURDENS:
0.1A / 0.5 A unit 0.45 VA
1.0A / 5.0 A unit 2.6 VA
Table 7–1: BURDEN SETTINGS
BURDEN at MINIMUM SETTING BURDEN IN
Ω
(Z) at MULTIPLES OF
MINIMUM PICKUP
UNIT RANGE Hz R jX Z
∠
3x 10x 20x 100x
1A 0.1 / 31.8 60 28.8 29.2 41.3 45° 9.36 2.32 1.24 0.768
5A 0.5 / 15.9 60 1.28 1.15 1.74 42° 0.394 0.094 0.052 0.034
4 55 6 7 8
1
2 3 4 55 6 7
10
2 3 4 55 6
100
3
4
1
2
33
4
10
2
33
4
100
2
0.1
2 3 4 55 6 7 8
1
2 3 4 55 6 7
10
2
5AMP Model
1AMP Model
0.1 to 3.18 A (1 Amp Relays)
Current Range: 0.5 to 15.9 A (5 Amp Relays)
Burden
in
VA