Earthing arrangements and protective conductors - Symmetra MW in

"IT - installation"

 

 

 

 

 

 

 

See:

 

IEC 60364-4-41

§ 413.1.5

 

 

 

 

 

Switchgear

 

 

 

 

 

Q3

 

 

 

Service Entrance

 

 

 

 

 

 

 

 

 

( PDU )

 

 

 

 

 

 

 

 

 

 

 

Residual Current Sense

Residual current protective device

 

 

 

 

 

 

 

 

 

 

 

can be used.

 

 

Q5

 

 

 

 

 

External SSW-Bypass

Q6

 

 

 

 

Bypass - input

 

 

 

Bypass - output

 

 

 

 

 

 

L1

 

 

 

 

L1

 

 

 

 

 

 

 

L2

 

 

 

 

L2

 

 

 

 

 

 

 

L3

 

 

 

 

L3

 

 

 

 

 

 

 

 

Main Protective Earthing Terminal

 

 

 

 

 

 

 

 

 

PE

 

 

 

 

PE

Q4

 

 

 

 

 

 

 

 

 

 

 

 

 

PE

 

 

Q1

 

 

 

 

 

Symmetra MW

 

 

 

 

 

 

Mains - input

 

i

Delta

UPS - output

 

 

 

 

 

 

 

 

 

 

Inverter

 

 

 

 

 

 

 

 

L1

 

 

 

i

L1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

L2

 

 

i

 

L2

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

L3

 

 

 

 

L3

 

 

 

 

 

 

 

 

 

 

 

u

u

 

 

 

 

 

 

 

 

filter

 

 

 

M

 

 

 

 

 

 

 

 

Common-mode

 

 

 

 

 

 

 

 

 

 

 

 

 

 

u

 

 

 

 

 

 

 

 

 

 

 

 

Main

 

 

 

 

 

 

Grounding

Z

 

 

 

 

inverter

 

 

 

 

 

 

impedance

 

 

 

 

 

 

 

 

 

 

Insulation

 

 

 

 

 

 

 

 

 

 

 

 

Monitoring

 

 

 

 

 

 

 

 

 

 

 

 

Device

 

 

 

 

 

 

 

 

 

 

 

 

 

 

N

 

 

 

 

N

 

 

 

N

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

E

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Main Protective Earthing Terminal

 

 

 

 

 

 

Conductor

PE

 

 

 

 

PE

 

 

 

Z

Grounding

 

 

 

 

 

 

 

 

 

 

 

impedance

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

+

-

+

-

 

 

 

 

 

 

Protective Earthing Conductor

Earthing

 

Battery1

 

Battery2

 

 

 

 

 

 

 

( Alternative to earth electrode )

 

 

 

 

 

 

 

 

 

 

Requirement !!

 

 

 

 

 

 

 

 

 

 

 

IEC 60664-4-41

§ 413.1.5.4

 

Battery

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

breaker

 

 

 

 

 

 

 

 

 

 

 

box

Q7

 

 

Q8

 

 

 

 

 

 

Suitable earth electrode: RA x Id

< 50V

PE

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

With reference to IEC 60364-4-41

§ 413.1.5.3

 

 

 

 

 

 

 

 

 

 

 

Alternative:

 

 

 

 

 

 

 

 

 

 

 

 

The exposed-conductive-parts can be earthed individually or in groups.

 

 

 

 

 

 

 

 

 

 

But special demands are required. See IEC 60364-4-41 § 413.1.5.5 a)

 

 

 

 

 

 

 

 

 

 

 

 

Battery

 

 

 

 

 

 

 

 

 

 

 

rack

 

 

 

 

 

 

 

 

 

 

 

 

Battery 1

 

Battery 2

 

 

 

 

 

 

 

 

PE

 

 

 

 

 

 

 

 

Page 52
Image 52
American Power Conversion SYMF800KH manual IT installation

SYMF800KH specifications

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