LDBM-40.5kV Armored Removable AC Metal-enclosed Switchgear

Negotiable
China
National (Xuchang) Power Electronics System Industrial Park, Yangguang Avenue, Weidu District, Xuchang City, Henan Province
0374-3216642
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Product Introduction

Product Advantages

Complete Engineering Solutions

  • Complete product series with rated current from 1250A to 4000A and short-circuit breaking current from 25kA to 40kA; the full series has passed authoritative third-party type tests.
  • Excellent compatibility: Compatible with multiple specifications of vacuum or SF6 circuit breakers from domestic and international sources.

Rigorous Quality Control

  • Committed to customer-oriented total quality management philosophy; every switchgear completes factory testing in accordance with standards such as GB 3906 and GB 1984.
  • The full series of products has passed internal, arc, pollution, condensation, EMC, and vibration tests.
  • The full series of products meets air clearance greater than 300mm and the latest 18 anti-misoperation measures of the State Grid.

Extremely High Safety

  • IAC-level cabinet design: Cabinet structure meets 40kA/1s arc requirements.
  • Provides bidirectional five-prevention interlocking to reliably prevent misoperation and ensure personnel and equipment safety.

Extremely High Reliability

  • 300mm insulation clearance technology, double-shielded insulation parts technology, and circular busbar technology ensure that the partial discharge value of each switchgear is less than 100pC at 1.1Ur.

Excellent Convenience

  • Ample cable compartment space with installation height up to 700mm or more, allowing connection of multiple cables.
  • Rotary instrument compartment component mounting plate and terminals greatly facilitate daily inspection and maintenance.
Product Parameters

Project

Unit

LDBM-40.5

Rated voltage

kV

40.5

Rated current

A

1250-4000

Rated short-time power frequency withstand voltage (phase-to-phase, to ground/fracture)

kV

95/118

Rated lightning impulse withstand voltage (phase-to-phase, to ground/fracture)

kV

185/215

Rated short-time withstand current

kA/s

25 to 40/4

Rated peak withstand current

kA

63/100

Degree of protection (enclosure/compartment)

/

IP41/IP2X

Mechanical life

Times

20000

Electrical life of earthing switch

Times

2

Internal Arc Test Features

/

AFLR

Overall dimension

mm

1400(1680)* 2800(3100)* 2600