OLTC / OCTC
for Power Transformers
OLTC / OCTC for Power Transformers
On-load and deenergized tap-changers for power transformers
- v type
- MOTOR DRIVE UNIT
- m Type
- d type
- octc
V TYPE
Current rating up to 500 A & Voltage up to 132 kV (Y/D).
Special designs are avilable for 250 and 400 A on request.
Both star and delta applications are available.
Step voltage is 1500 Volts.
In-built selector switch model.
Bi-directional power flow.
Very compact dimensional arrangement.
Easy removal of diverter switch inserts, making it maintenance friendly.
Linear version is available up to 14 positions.
Up to 27 positions are available with the pre-selector arrangement.
No barrier board problems.
Electrical parameters | ||||||||
TYPE | Current Rating (A) | Voltage Variants | BIL kV/kVp | Max. Rated Step Voltage (Volts) | Max. Operating Position | |||
Three Pole | Single Pole | Voltage Level (kV) | Vector | Linear | Pre-Selector | |||
V TYPE | 200, 350 & 500 | 350 & 700A* | 40 | Y, D | 70/200 | 1500 | 14 & 18 | 27 |
76 | 140/350 | |||||||
123/76 | 230/550 | |||||||
WHY MOTOR DRIVE UNIT?
- Mechanism
MOTOR DRIVE UNIT
The drive mechanism is built with a specialised series of gears to ensure smooth operation. The uniform mounting and drive geometry significantly enhances fitment.
The housing made of corrosion-resistant cast aluminium makes it perfect for any environment, even the most extreme operating conditions. The mechanism is tested for IP-56 Protection, and a special housing is available for IP-66 as well. The motor drive is built with all necessary safety features.
EMR is also equipped to provide additional electrical features, if required, in the motor drive unit. On-site solutions with integrated electronics for direct regulation and monitoring of on-load tap changers and transformers can be built and integrated into the motor drive.
m TYPE
Current rating up to 500 A & Voltage up to 132 kV (Y/D).
Special designs are avilable for 250 and 400 A on request.
Both star and delta applications are available.
Step voltage is 1500 Volts.
In-built selector switch model.
Bi-directional power flow.
Very compact dimensional arrangement.
Easy removal of diverter switch inserts, making it maintenance friendly.
Linear version is available up to 14 positions.
Up to 27 positions are available with the pre-selector arrangement.
No barrier board problems.
Electrical parameters | ||||||||
TYPE | Current Rating (A) | Voltage Variants | BIL kV/kVp | Max. Rated Step Voltage (Volts) | Max. Operating Position | |||
Three Pole | Single Pole | Voltage Level (kV) | Vector | Linear | Pre-Selector | |||
V TYPE | 200, 350 & 500 | 350 & 700A* | 40 | Y, D | 70/200 | 1500 | 14 & 18 | 27 |
76 | 140/350 | |||||||
123/76 | 230/550 | |||||||
D TYPE
Current rating up to 500 A & Voltage up to 132 kV (Y/D).
Special designs are avilable for 250 and 400 A on request.
Both star and delta applications are available.
Step voltage is 1500 Volts.
In-built selector switch model.
Bi-directional power flow.
Very compact dimensional arrangement.
Easy removal of diverter switch inserts, making it maintenance friendly.
Linear version is available up to 14 positions.
Up to 27 positions are available with the pre-selector arrangement.
No barrier board problems.
Electrical parameters | ||||||||
TYPE | Current Rating (A) | Voltage Variants | BIL kV/kVp | Max. Rated Step Voltage (Volts) | Max. Operating Position | |||
Three Pole | Single Pole | Voltage Level (kV) | Vector | Linear | Pre-Selector | |||
V TYPE | 200, 350 & 500 | 350 & 700A* | 40 | Y, D | 70/200 | 1500 | 14 & 18 | 27 |
76 | 140/350 | |||||||
123/76 | 230/550 | |||||||
O TYPE
Current rating up to 500 A & Voltage up to 132 kV (Y/D).
Special designs are avilable for 250 and 400 A on request.
Both star and delta applications are available.
Step voltage is 1500 Volts.
In-built selector switch model.
Bi-directional power flow.
Very compact dimensional arrangement.
Easy removal of diverter switch inserts, making it maintenance friendly.
Linear version is available up to 14 positions.
Up to 27 positions are available with the pre-selector arrangement.
No barrier board problems.
Electrical parameters | ||||||||
TYPE | Current Rating (A) | Voltage Variants | BIL kV/kVp | Max. Rated Step Voltage (Volts) | Max. Operating Position | |||
Three Pole | Single Pole | Voltage Level (kV) | Vector | Linear | Pre-Selector | |||
V TYPE | 200, 350 & 500 | 350 & 700A* | 40 | Y, D | 70/200 | 1500 | 14 & 18 | 27 |
76 | 140/350 | |||||||
123/76 | 230/550 | |||||||
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