S
ection
7
If the generator exciter eld is not shorted, proceed to Step 4.
Step 4. Replace the DVR2000E.
If replacing the DVR2000E does not correct the malfunction, proceed to Step 5.
Step 5. Refer to the generator manual. Generator is defective.
UNDERFREQUENCY ACTIVE Indicator Is Annunciating
Step 1. Verify that the generator is operating at rated speed.
If the generator is not operating at rated speed, adjust the generator speed.
If the generator is operating at the rated speed, proceed to Step 2.
Step 2. Verify that the underfrequency setpoint is correct.
If the underfrequency setpoint is incorrect, adjust it to the correct value.
No Droop
Step 1. Verify that the DVR2000E 52L/M contact input is open.
If the 52L/M contact input is not open, it must be opened to enable the droop function.
If the 52L/M contact input is open, proceed to Step 2.
Step 2. Verify that the DVR2000E 52J/K contact input (if present) is closed or the Var/PF function is disabled
via the Windows® software. Var/PF operation must be disabled for droop operation. If Var/PF operation
is disabled, proceed to Step 3.
Step 3. Verify that the DVR2000E droop setting is not adjusted to 0% droop.
If the droop setting is adjusted to 0% droop, increase the setpoint above 0%.
If the droop setting is adjusted to above 0%, proceed to Step 4.
Step 4. Check for an open in the circuit connected to DVR2000E CT1 and CT2.
If there is an open circuit, repair as necessary.
If there is no open circuit, proceed to Step 5.
Step 5. Verify that all connections are correct according to Figures 4-6 and 4-7.
If connections are incorrect, correct the problem.
If connections are correct, proceed to Step 6.
Step 6. Verify that the load being applied to the generator for droop testing is not purely resistive.
If only a resistive load is being applied to the generator, apply an inductive load and retest.
If the load being applied to the generator is inductive, proceed to Step 7.
Step 7. Verify that your DVR2000E is compatible with the current sensing transformer (5 A secondary) being
used. For example, a current sensing transformer with a 1 ampere output rating would produce very
little droop since your DVR2000E has a 5 ampere current transformer input.
If the current transformer input is incorrect, replace the current sensing transformer for compatibility.
If the current transformer input is correct, proceed to Step 8.
Step 8. If the above steps fail to correct the malfunction, replace the DVR2000E unit.
90
3
Main Index
5
Section 7 Index
To Next Page
Loading...