Delta Electronics MVF2000 Series, Руководство по эксплуатации продукта

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99

System safety earthing
: ≤0.5Ω

M
achine cabinet support: ≤0.5Ω

T
ransformer support: ≤0.5Ω

External housing of the cooling fans
: ≤0.5Ω

Door locks
: ≤0.5Ω.
Insulation inspection:

Check whether all cables meet the requirements in the wiring technical documents;

Insulation test for control power: disconnect the control power input and measure the
insulation resistance of AC220V terminal at the outgoing parts of the bypass switches
QF11, QF12 and QF13 by means of 2500V megger, wherein the insulation resistance is
required to be higher than 1 MΩ.
Other preparations:

Provide an ac auxiliary power supply;

Collect all necessary device instruction documents, drawings and materials.
8-2 Commissioning process
For the specific commissioning steps, see MVF2000 site commissioning outline.
8-2-1 Personnel coordination during commissioning
During commissioning, the user shall dispatch at least two professional electrical
technicians as the necessary operators for commissioning, wherein the operators shall meet
the following conditions:

Be familiar with the low, medium and high voltage electrical equipment and the
related safety regulations;

Be familiar with the user distribution system;

Be authorized to operate low and medium voltage equipment (high voltage power
breaker and other medium & low voltage transmission switches);

Be authorized to operate the distribution equipment in the customer
’s premises.
8-2-2 Commissioning acceptance
After finishing commissioning, the commissioning report shall be accepted and signed by
the user and the commissioning engineer of Delta Electronics. Two commissioning reports
shall be written in duplicate by the commissioning engineer of Delta Electronics, one copy is
for the user
’s record and the other for Delta Electronics.