Medium Voltage Circuit Breakers

Embedded  Pole VCB

A one window line-up from world best manufacturers

• Ratings up to 3.3kV - 17.5kV and up to 4000 A and 40 kA.
• Collar-fitting front panel.
• Primary disconnect finger set is rugged and easy to inspect.
• All the mechanical parts of the mechanism are integrated
• Number of mechanical and electrical interlocks for personnel safety.
• Unique and proven embedded pole technology
• State of the art process and advanced quality control including x-ray inspection.
• Opening time is 20~50 ms, breaking time is 25~35ms and closing time 30~70 ms.

Offerings through ABB:

ingeniously manufactured by Epesol

Construction:

Salients:

• Top of the line 11 Gauge A 60 NEMA 3R galvanneal steel enclosure.
• Skidding steel channel structure base for enclosure, capacitor and switch.
• Nokian NC-12 digital power factor controller for each bank.
• Heavy duty distribution class lightening arrestors for transient voltage protection.
• Current limiting fuses for all capacitors.
• Blown fuse detection system for each bank.
• Automatic maintaining of power factor with load requirements.
• Optional CT for current signaling and PT for voltage signaling to Solid State Controller.
• Controlled power transformer for internal control of each capacitor bank.
• Over current and over load protection.
• Interlocked 3-pole ground switch for each bank.
• Additional protection in case of abnormal current or voltage.
• Large window to enhance power factor; from 0.55 - 0.95.
• Optional Enclosure lights for high visibility during maintenance.
• Optional tripping in case of over temperature condition.

• Consistency in power factor under fluctuating loads
• PFI panel indigenously manufactured
• Increased durability and tolerance of harmonics and transients
• Low Voltage Power Factor Correction and Harmonic Filters
• Substation Stack Rack & Pole Top Equipment
• All fastening hardware inside and outside consists of stainless steel.
• Inrush reactors are provided for each stage to minimize the effect of capacitor switching.
• Neutral Voltage Unbalance Protection System.

Salients

• Indoor dust proof and outdoor water proof.
• Heavy duty film to handle over voltages and currents.
• Less than 0.2 watts per kVAR losses.
• Protection provided by limiting fuses.
• -40°C to +46°C temperatures range.

Offerings through ABB:

GE’s MV capacitors are for PFI and harmonic mitigation. GE manufactures water cooled and air cooled Induction Heating and Melting capacitors, DC link and Pulse capacitors and DC Capacitors for High Power Semiconductors for industrial purposes. GE provides  power capacitors that meet ANSI® / IEEE® and IEC® standards. Capacitors are all-film low loss double bushing design with internal discharge system. Enclosure windows are provided to view the position of air disconnect switch and ground switch.

MV Capacitors

by GE

More:

ABBACUS, Medium Voltage Capacitor Banks

CQ900 Capacitor controller

Switched metal enclosed

for pole-mounted capacitor banks

• Modular fixed/switched steps automatic reactive compensation system.
• One stop complete solution.

• Complete solution for controlling and monitoring capacitors on distribution systems.
• Fully user programmable

Salients

• 3 Phase copper or Aluminum conductor.
• Primary voltage range up to 35 kV with 50/60 Hz frequency.
• From 160-10000 kV.
• Insulation class of F(1550C) or H (1800C).
• Cooling types of wave cast transformer are AN, AN/AF, AF
• Connection types are Dyn5, Dyn11, YNd11, Yyn0 and others.

Offerings through ABB:

Dry Type Transformers

by GE

Wave cast coil transformers from GE are highly engineered proven eco-friendly technology with flexibility, lower installation cost and operating efficiency. Winding assembly is designed to meet the advanced field needs. These transformers have overwhelming advantages over dry and liquid filled transformers. Archetype applications include industrial critical power requirements and renewable energy solutions. Additional benefits which fit to the customer demands are mechanical strength, suitability for simple indoor installations, extended ratings and high efficiency and environmental safety.

Medium Distribution Transformer

Liquid Filled

• Liquid Filled, MDT, Pole-mounted, Ground-Mounted, pad-mounted, substation.
• Primary Voltage up to 36 kV
• From 316 - 2499 kVA.

Salients

• Substation VR
• Traditional and fast cycle pole mounted
• 76, 114, 167 & 72, 144, 288 kVA (Single Phase)
• Primary from 7.62 kV through 14.4 kV and Type B

MV Voltage Regulators

by GE

EPESOL provides cost effective VR-1 voltage regulator by GE to correct and/or provide protection from power problems such as over/under voltage, voltage fluctuations and phase imbalance. GE is the pioneer of measured Reverse Power Flow capability in voltage regulators to prevent detrimental effects on utilities, loss of revenue due to subnormal voltage and increased cost due to high losses.

Reverse power flow capability

2 million mechanical operations

IEEE C57.15-2009 & NEMA 4

• Cable terminations indoor and outdoor w/ geometrical field and electrical stress control
• Screened separable cable connectors w/ up to CSE-A 630 A and parallel connector and surge arrester
• Premolded cable joints
• Cable cabinets up to 36 kV, 630 A ratings and 25-630 mm2 - 4 parallel cables
• Indoor and outdoor cold shrink cable terminations and joints
• GIS plug-in termination up to 42 kV 1/3-core cable

ABB offers a complete range of connectors, joints, terminations from 12-42 kV for the cable networks. The range consists of prefabricated or premolded solutions for indoor and outdoor applications. The accessories are designed for installations in switchgear, transformers, overhead lines, wind power stations and other installations.

MV Cable Accessories

by ABB

ABB offers a complete range of metal oxide surge arresters for outdoor and indoor applications. The range comprises AC and DC solutions and arresters for special applications like railways, DC-voltage limiting devices and other medium voltage applications. These arresters are all based on the ABB's latest technology of metal-oxide resistors looped with glass fiber-composite material to ensure long term stability and compactness. The active part of the arresters is directly molded into silicone for environmental robustness and to prevent internal discharges. The portfolio comprises medium-voltage arresters for all line discharge classes according to IEC for AC and all charge transfer classes according to EN for DC traction solutions.

• • Housing options:
    • • • • up to 16 different
  • kV Rating:
    • • • • 0.44 kV to 44 kV AC
          • 0.56 kV to 4.7 kV DC
  • Line Discharge Classes:
    • • • • 1 to 4
  • The Energy Capability Rating (Single Impulse):
    • • • • 3.4 to 12.0 kJ/kV - Uc

by ABB