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STS-(3000K, 6000K)-H1 Smart Transformer Station Installation Guide
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Huawei uses machine translation combined with human proofreading to translate this document to different languages in order to help you better understand the content of this document. Note: Even the most advanced machine translation cannot match the quality of professional translators. Huawei shall not bear any responsibility for translation accuracy and it is recommended that you refer to the English document (a link for which has been provided).
Preparing Cables

Preparing Cables

  • Cables should have sufficient current-carrying capacity and should not be overloaded.
  • Cables with the same functions should have the same specifications and type.
Figure 7-1 Cable connections (configure the components in the dotted box as required)

(A) Side view of the STS LV cabinet

(B) Front view of the STS

(C) Side view of the STS MV room

(D) Solar inverter

(E) AC switch box

(F) UPS

(G) Smart array controller (SACU)

(H) Support tracking system

(I) Power-consuming device

(J) Power grid

(K) STS

  
Table 7-1 Cables

No.

Cable

Type

Cross-sectional Area

Outer Diameter

Source

1

PE cable

Single-core outdoor copper cable and M12 OT/DT terminals

50–240 mm2

10–32 mm

Prepared by the customer

2

AC input power cablea

Single-core or three-core outdoor copper/copper-clad aluminum/aluminum alloy cable and M12 OT/DT terminals

50–240 mm2

16–72 mm

Prepared by the customer

3

UPS cable bundle

N/A

N/A

N/A

Delivered with the product

4

SACU cable bundle

N/A

N/A

N/A

Delivered with the product

5

(Optional) Tracking system power cable

Three-core or four-core outdoor copper cable

2.5–16 mm2

10–32 mm

Prepared by the customer

6

(Optional) Site auxiliary power supply cable

Two-core or three-core outdoor copper cable

2.5–10 mm2

6–20 mm

Prepared by the customer

7

Cabinet G1 cable

Single-core or three-core outdoor copper/copper-clad aluminum/aluminum alloy cable and separable shielded cable connectors

70–300 mm2

Single-core: 30–52 mm

Three-core: 30–95 mm

Prepared by the customer

8

Cabinet G3 cable

Prepared by the customer

Note a: The AC input power cable can connect to a 300 mm2 or 400 mm2 single-core cable. The restrictions are as follows:

  • Outer diameter of a single-core cable ≤ 35 mm
  • Dimensions of the wiring terminal: width ≤ 43 mm; length ≤ 136.5 mm; outer diameter of the crimping tube ≤ 37 mm
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Updated: 2019-12-05

Document ID: EDOC1100115701

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