Toshiba 300 KW 用户手册

G8000 Series Installation and Operation Manual

This section describes the grounding configuration to be used with various AC service entrance configurations.
Inadequate grounding will cause problems at start-up. Connections for the ground line and the neutral 

line must be made appropriately according to the system configuration.

Figure 11.12 shows recommended grounding configuration when the input neutral is grounded.
The neutral line at the input source is usually grounded. The neutral terminal in the UPS cabinet should 

be disconnected from the ground bus. The neutral connection for the UPS bypass input should be 

grounded.

A 2 AWG (or 38 mm

2

) jumper cable is provided between the neutral terminal and ground bus in the UPS 

cabinet. The qualified personnel should remove the jumper cable in this configuration. The jumper cable 

location is illustrated below.

N

G

3

φ

3

φ

3

φ

N

G

< UPS Cabinet >

N

3

φ

3

φ

G

Input Source 

Remove 

Jumper Cable 

G

N

3

φ

To the

Load

N

G

3

φ

3

φ

3

φ

N

G

< UPS Cabinet >

N

3

φ

3

φ

G

Input Source 

Jumper Cable 

Remains in Place 

G

N

3

φ

To the

Load

N

G

3

φ

3

φ

3

φ

N

G

< UPS Cabinet >

3

φ

3

φ

G

Input Source 

Jumper Cable 

Remains in Place 

G

N

3

φ

To the

Load

N

G

3

φ

3

φ

3

φ

N

G

< UPS Cabinet >

G

N

3

φ

3

φ

To the

Load

Output Distribution

3

φ

3

φ

G

Input Source 

B

φ

Remove 

Jumper Cable 

Ground 

Bus

Remove 

Jumper 

Cable

Neutral 

Terminal

Ground 

Bus

Remove 

Jumper 

Cable

300 kVA

100-225 kVA

Neutral 

Terminal