Graycell · Siemens Approved Partner

COMPACT SUB-STATIONS

Graycell is an approved partner of Siemens to manufacture compact substations (CSS - TYPE 8FB20). Integrating Siemens RMU (12kV to 33kV, 630A, 21kA), fully type tested to IEC 62271-202 at our Pune Khed-Shivapur facility with 100+ annual unit capacity.

CSS with Oil / Dry Type Transformer up to 33kVCSS with Transformer having OLTC up to 33kVMSEDCL Approved CSSPAD Mounted CSSE-House (Walkable Containerised Substation)
01 / COMPACT SUB-STATIONSIEMENS 8FB20 PARTNER

CSS with Oil / Dry Type Transformer up to 33kV

Oil or cast resin transformer integrations
Compact Substation

Key Features

Fully type tested to IEC62271-202
Internal arc test design for 21KA 0.1Sec, Short time withstand 21KA 3Sec.
Fully Type tested & customized options in 6.6kV/11kV/22kV/33kV upto 2500 KVA with secondary voltage options from 415V upto 800Volts.
Enclosure Degree Of Protection - IP54 for MV-LV Section, IP23 for Transformer
Enclosure Class-K10 . Natural & AF Ventilation System
Designed, Built & Tested CSS to suit every project be it Indoor or Outdoor type
Rust, corrosion & weatherproof design suitable for outdoor application.
Extremely user-friendly design for operation & routine maintenance
Compact Substation
02 / COMPACT SUB-STATIONSIEMENS 8FB20 PARTNER

CSS with Transformer having OLTC up to 33kV

On-Load Tap Changer integrations
Compact Substation

Key Features

Customized design of CSS as per requirement
Separate door for OLTC operation
Compact type transformer with OLTC to accommodate in CSS
HT/LT placement on one side of CSS to save space
Inbuilt RTCC panel for OLTC
Special lifting arrangement for heavy, large CSS
Dry Type Transformer
03 / COMPACT SUB-STATIONSIEMENS 8FB20 PARTNER

MSEDCL Approved CSS

Utility compliant distribution packages
STUDIO SPECIFICATION PHOTOGRAPH
MSEDCL Approved CSS

Key Features

Specially designed CSS as per MSEDCL requirements.
Fully type-tested design up to 1000kVA, 22/0.433kV CSS.
Approved by MSEDCL.
HT side MSEDCL approved SCADA RMU.
Transformer compartment suitable to accommodate any standard MSEDCL transformer.
Interchangeability of transformer at site location easily possible.
LT side MSEDCL approved feeder pillar is provided.
All CSS are fully tested by MSEDCL authority.
Suitable for all LT consumers.
04 / COMPACT SUB-STATIONSIEMENS 8FB20 PARTNER

PAD Mounted CSS

Compact skid / pad mounted solutions
STUDIO SPECIFICATION PHOTOGRAPH
PAD Mounted CSS

Key Features

PAD skid-mounted CSS for non-standard site requirements in the entire range.
Compact in design.
HT Transformer and LT Panel are mounted on a common skid and connected with each other by cables/busbars.
Safety fencing is provided for the transformer.
High IP degree of protection.
Suitable for all types of indoor and outdoor installations.
Easy to operate and maintain.
05 / COMPACT SUB-STATIONSIEMENS 8FB20 PARTNER

E-House (Walkable Containerised Substation)

Heavy-duty walkable container substations
STUDIO SPECIFICATION PHOTOGRAPH
E-House (Walkable Containerised Substation)

Key Features

E-House is a modern concept in which all substation switchgear panels and aux panels are installed in one container, which is walkable and convenient to operate.
E-House is a plug-and-play solution which is pre-assembled at the factory and delivered to the site ready to use.
Reduces site work and installation time.
E-House is completely enclosed, hence suitable for the oil and gas, steel, and cement industries where the outside environment is hazardous.
E-House is equipped with a fire and gas suppression system.
E-House features fire-retardant walls to protect inside switchgear panels from external fires for up to 60/90/100 minutes.