GE 469 Manual

7-10 469 Motor Management Relay GE Power Management
7.3 ADDITIONAL FUNCTIONAL TESTING 7 TESTING
7
7.3.2 POWER MEASUREMENT TEST
The specification for reactive and apparent power is
±
1% of
√
3
×
2
×
CT
×
VT
×
VT full scale at
I
avg
<
2
×
CT.
Perform the steps below to verify accuracy.
1. Alter the following setpoints:
S2 SYSTEM SETUP\CURRENT SENSING\PHASE CT PRIMARY: 1000
S2 SYSTEM SETUP\VOLTAGE SENSING\VT CONNECTION TYPE: Wye
S2 SYSTEM SETUP\VOLTAGE SENSING\VOLTAGE TRANSFORMER RATIO: 10.00:1
2. Inject current and apply voltage as per the table below. Verify accuracy of the measured values. View the
measured values in:
A2 METERING DATA\POWER METERING
Table 7–15: POWER MEASUREMENT TEST
INJECTED
CURRENT 1A UNIT,
APPLIED VOLTAGE
(Ia is the reference
vector)
INJECTED
CURRENT 5A UNIT,
APPLIED VOLTAGE
(Ia is the reference
vector)
EXPECTED
LEVEL OF
POWER
QUANTITY
TOLERANCE
RANGE OF
POWER
QUANTITY
MEASURED
POWER
QUANTITY
EXPECTED
POWER
FACTOR
MEASURED
POWER
FACTOR
Ia = 1 A ∠0°
Ib = 1 A ∠120°
Ic = 1 A ∠240°
Va = 120 V ∠342°
Vb = 120 V ∠102°
Vc = 120 V ∠222°
Ia = 5 A ∠0°
Ib = 5 A ∠120°
Ic = 5 A ∠240°
Va = 120 V ∠342°
Vb = 120 V ∠102°
Vc = 120 V ∠222°
+ 3424 kW
3329
to
3519
kW
0.95 lag
Ia = 1 A ∠0°
Ib = 1 A ∠120°
Ic = 1 A ∠240°
Va = 120 V ∠288°
Vb = 120 V ∠48°
Vc = 120 V ∠168°
Ia = 5 A ∠0°
Ib = 5 A ∠120°
Ic = 5 A ∠240°
Va = 120 V ∠288°
Vb = 120 V ∠48°
Vc = 120 V ∠168°
+ 3424
kvar
3329
to
3519
kvar
0.31 lag

GE 469 Specifications

General

Model	GE 469
Category	Relays
Frequency	50/60 Hz
Protection Functions	Overcurrent
Communication Protocols	Modbus, DNP3, IEC 61850
Display	LCD
Mounting	Panel