SDF Series Horizontal center break disconnector - IEE-Business

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SDF Series Horizontal center break disconnector

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Model

SDF-4000/550/63

SDF-4000/420/63

SDF-4000/363/63

SDF-4000/300/63

SDF-4000/245/63

SDF-4000/145/63

SDF-4000/72.5/63

Basic info Product Detail Supplier

Basic info

Brand	ROCKWILL
Model NO.	SDF Series Horizontal center break disconnector
Rated voltage	550kV
Rated normal current	4000A
Rated short-time withstand current	63kA
Series	SDF Series

Product Detail

Overview

The SDF disconnectors are available for up to 550 kV, 4000 A and 63 kA. These type of disconnector have a low friction design and offer minimized contact resistance. They are equipped with dead center interlocking for reliability in extreme conditions. Some other important features of these disconnectors are

No external spring in contact fingers
Superior design of mechanical interlock
Strong rotary pedestals
Ice breaking capacity

Applications

The horizontal center break disconnector is used at substations due to its simplicity and flexibility in arrangement.

Technology Parameters

Rated voltage (kV)	72.5	123	145	245	300	362	420	550
Rated current (A)	4000
Short time withstand current (kA)	63
Power frequency withstand voltage (kV)
against earth	140	230	275	460	395	450	520	620
across isolating distance	160	265	315	530	435	520	610	800
Lightning impulse withstand voltage (kV)
against earth	325	550	650	1050	1050	1175	1425	1550
across isolating distance	375	630	750	1200	1050	1175	1425	1550
Switching impulse withstand voltage (kV)
against earth					850	950	1050	1175
across isolating distance					700	800	900	900

Know your supplier

ROCKWILL

Rockwill Electric Group Global Manufacturer of High voltage and medium-voltage power equipment and smart grid solutions. Headquartered in Wenzhou, China. Serving 100+ countries with quality, innovation, and trust. What We Offer: • HV-MV switchgear (VCB, SF₆ circuit breakers, RMU, GIS) • Distribution transformers and substations • Smart grid and monitoring systems • Solar, wind, EV charging, and energy storage solutions • EPC turnkey power projects Certified: ISO 9001 / ISO 14001 / ISO 45001

Main Categories

High Voltage Electrical Apparatus

Business Type

Design/Manufacture/Sales

Highest Annual Export (USD)

$150,000,000

Professional Experience

16 years

Workplace

108000m²m²

占位

占位

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