Substation Maintenance Trailers
SESCO engineers, designs, and manufactures mobile insulating oil filtration systems for small transformer, tap changer, and breaker installation and maintenance. The SES441 series uses single or multi-stage filtration to remove particulate contamination, free water, and small quantities of dissolved water when required. Systems can be combined with SES420 vacuum packages and SES329 dry air systems to create complete transformer maintenance trailers.
SES441 Highlights
- Variable Speed Operation
- 10-45 GPM (37-169 LPM)
- 50 PSI Discharge Pressure
- Single & Three-Phase Power Options
- Removes Carbon, Free Water and Dissolved Water
- Combine with Vacuum and Dry Air Packages
The SES441 filtration systems are commonly trailer mounted and can be combined with SES420 vacuum systems and SES329 dry air systems to provide a versatile transformer maintenance platform. All systems can be custom engineered to customer specifications.
Performance Overview
| Processing Rate | Variable Speed 10-45 GPM (38-169 LPM) |
| Discharge Pressure | 50 PSI |
| Suction Lift | 12 FT @ 30 GPM |
| Connection Type | 2" Quick Connect Camlocks |
| Power Options | 240V/1/60, 240V/3/60, 480V/3/60 |
Specifications & Options
Processing Rate
- Variable Speed 10-45 GPM (38-169 LPM)
Filtration Stages
- Single
- Duplex
- Duplex with Bypass
Filter Housing Styles
- CUNO ZETA PLUS (4 High)
- Single 7OD x 18" L
- Three 7OD x 18" L
- Custom Configurations Available
Cartridge Types
- Particulate
- Particulate & Free Water
- Dissolved Water
- Fullers Earth
- Activated Alumina
Flow Meters
- Rate Meter
- Positive Displacement Totalizing Meter
Connections
- 2" Quick Connect Cams
Suction Lift
- 12 FT @ 30 GPM
Discharge Pressure
- 50 PSI
Power
- 240V/1/60
- 240V/3/60
- 480V/3/60
Additional Options
- Live Electric Rewind Hose Reels
- Manual Rewind Storage Hose Reels
- Inlet / Discharge 4-Way Crossover Valve
- Duplex Systems with Series or Individual Flow Control
- Standard 718x3 Flat Gasket Cartridge Housing
- Dissolved Water Monitor
- Tethered Remote Pump Control Module
- 480V/3 or 240V/3 Power Options
- Oil Storage Tanks
- Generator Packages
- Custom Filtration Configurations
Combination Trailer Systems
SES441 filtration trailers are commonly combined with SES420 vacuum packages and SES329 dry breathing air systems to create highly flexible transformer maintenance trailers. Systems can be custom configured to match utility and service contractor requirements.
FILTRATION + DRY AIR + VACUUM
Mounting
The SES441 can be skid mounted for pickup truck mobility or cargo trailer mounted. Combination systems are typically supplied in cargo trailer configurations.
Cargo Trailer Mounting
All cargo trailers are specifically engineered to accommodate equipment load, weight distribution, to provide optimum towing conditions. Cargo trailer weight capacities (GVRW) range from 4,000 to 16,000 Lbs. SESCO will provide the cargo trailer size and weight capacity options available for the system being quoted.
