Elspec EQUALIZER-ST, Руководство пользователя и инструкция по установке, Страница: 89 / 121

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www.elspec-ltd.com | December 2014 | SMX-0609-0101
User Manual | EQ-ST | V15
Caps Currents Test
Whenever any changes are made to the Caps CT or they are fitted externally (due to customer specifications) you
will need to follow the testing procedure:

Select Menu  Cap system readings  Waveforms  Lx Current;

With the Left and Right arrows move the bar to the maximum positive value;

Make a note of the shift value for each phase;

Ensure that the Current shift is approximately 90º before the Voltage (L-N);
NOTE: Follow the steps outlined above in the event that the system compensate on MV by a step up transformer,
The main object of the exercise is to ensure that the voltage angles are concurrent with the current
measurements.
Should you fail to resolve the problem, send all the screen prints as outlined above, to your local Elspec
are using a Step-
S
AFETY
All troubleshooting operations must be pursued in strict compliance with applicable safety codes and under the
supervision of competent personnel and safety information on 14.
Before attempting any troubleshooting operation on the system, ensure electrical isolation by opening the circuit
breaker or fused disconnect protecting the system. Always follow applicable lock-out/tag-out procedures. For
isolation devices installed within the system, exercise extra caution to protect from live terminals and conductors
on the line side of the isolation device.
On completion of the troubleshooting operation, run commissioning procedures to ensure that the equipment is
in proper working order.
T
ROUBLESHOOTING
P
ROCEDURE
Troubleshooting is pursued at four levels, according to the nature of failure:

System does not work well but has no failure indication;

General system failure, indicated by a Page 62);

Single capacitor failure, indicated by on the capacitor indicator;

Communication failure;
S
YSTEM DOES NOT WORK WELL BUT HAS NO FAILURE INDICATION
The first step in troubleshooting is to check the interior of the system cabinet visually. To check, follow the
procedure below:
(1)
Inspect components for evidence of overheating or arcing;
(2)
Check cables for good physical connections. Look for indicators such as broken wires, evidence of
overheating and/or loose leads;
If you have not been able to solve the problem, check all connections for secure seating in the correct connectors.
If the problem persists, contact Elspec.