Hengfengyou offers qualitative range of PSS (Package Substation) or
USS (Unitized Substation) Transformer from 200 KVA to 2000 KVA in
11 KV Class. These Package Substations are largely required for
fire hazardous and compact places. A unitized substation is a
compact arrangement, which simplifies conventional substation
design. Substation housing is divided into three compartments i.e.
the HV Compartment, the Transformer Compartment and the LV
Compartment.
Advantages
1 Reduced electrical losses as USS can be installed near load
centres.
2 Total economy in cost.
3 Higher degree of safety and operational reliability is achieved
by HT and LT switchgears and protective relays to avoid
overloading.
4 Reduction in logistic cost as USS is delivered as a single unit.
5 Low civil / foundation cost.
UNITIZED SUB STATION CONFIGURATION COMPONENTS
HV Compartment
Extendible & Non Extensible MV Switchgear – Ring Main Unit (RMU)
Vacuum / SF6 Circuit Breaker, RMU & HV Fuse.
RMU & Load Break Switch.
Protection & Metering Devices.
Current & Potential Transformer for Metering / Protection.
Transformer Compartment
Oil Immersed Transformer /
Dry Type Transformer (VPI)
LV Compartment
LV Distribution Board
LT Control Panel with Incomer ACB & Outgoing MCCB
APFC Panel
LV Switch fuse unit
Instrumentation and Metering
Illumination
Internal Lightning & Door Limit Switches, Tailor made enclosures
mounted on the transformer under base to provide single lift
complete
installation with theft proof design.
Applications
USS (Unitized Sub Stations) / Package Sub Station are ideally
suited for new residential and commercial complexes as it can be
placed on Ground, partially or totally below / above ground level.
Mainly used by Power Utilities, Multiplexes, Hotels, Hospitals,
Shopping Malls, Software Parks, Residential Complex, Airport etc.
About us
Qingdao Hengfengyou Electrical Engineering Co. , Ltd. is one of the
large-scale electric complete
sets of manufacturers in China, specializing in oil-immersed
transformers, dry-type transformers,
high-voltage Cabinets, low-voltage cabinets and substation
manufacturing specialized electrical
enterprises. The company is located in the beautiful coastal city
of china-qingdao. The company
has a registered capital of 10 million yuan, 20 senior technical
personnel, more than 500 employees,
and a sound sales and service system, annual output value of US $1
billion, the products sell well
at home and abroad.
