Buchholz Relay
| Magnetic Switch Type |
Mercury switch type 25-80mm
and oil surge relay |
Magnetic Oil level Gauge
Catalog (100mm-150mm) |
Pressure Relief Valves
Catalog (150mm) |
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Buchholz Relay (Gas & Oil Operated)
| GOR-1 (25 mm) |
GOR-2 (50 mm) |
GOR-3 (80 mm) |
SRI |
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Features:
- Castings treated against porosity through a special process.
- Unique internal design of 'housing' prevents false air traps on top of the relay.
- Well designed internal layout gives clear view of colour of gas inside the relay through glass window for fault analysis.
- Bucket type float design with inherent ability to withstand vacuumtreatment of transformers.
- Built in test facility for checking continuity of both Alarmand Trip circuits.
- Anti-vibration custom built mercury switches give high stability against mechanical shocks and vibrations.
- ATVUS relays are approved by most of the consultants, Power Projects and Electricity Boards in India.
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Radiator Valves
| Square flange 80 and 100mm |
Butterfly valve size 50, 80, 100,
150, 200, 250mm |
Design Features:
- Our Flap has Angular Flat which Provides Wide Contact Area, as Compared to Conventionally used V-Shape Edge having Line Contact only with Valve Body. Flat Edge Ensures Almost Zero Leakage..
- Streamline Flap Design Minimizes Frictional Resistance to Fluid Flow.
- No Rubber Lining to Renew, Yet Leak proof.
- Valve is Able to Look in "OPEN" & "SHUT" position by the Cap.
- Cap Lock Valve in either Open or Close Position Preventing Accidental Throttling.
- A Groove Provided on the Spindle Head, Facilitates to Indicate the Position of the Valve when Cap is Removed.
- Bolt Length & Construction of the Cap is such that Cap can be Fitted in One Position only at a Time.
- Complete Range from 50mm to 250mm.
Application:
These valves are used to control the flow of fluid in pipeline. In transformer Industry these valves are used at one end of the Radiator to control the oil flow & hence more popularly known as "Radiator Valve".
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 Pressure Relief Valve
| Model : T-3-LSM |
Model : T-3-W |
Specifications: |
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| Liquid in Tank: |
Transformer oil |
| Operating Pressure: |
0.42, 0.49,0.56 kg/cm² (Any one value as per order) |
| Operating Tolerance: |
0.1 kg/cm² |
| Operating Time: |
Instantaneous |
| Valve Resetting: |
Automatic |
| Operating Temperature: |
0 to 100°C (of Liquid in Tank) |
| Environment: |
Indoor or Outdoor |
| Port Operating: |
Nominal 70 mm |
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Flow Indicator
| Model : 4011 |
Model : 4012 |
Model : 4011, 4012
Design Features:
- Causes negligible head-loss.
- Low maintenance cost.
- Robust construction and trouble free service.
- Does not get damaged due to excess flow or reverse flow.
Application:
These Flow Indicators can be used in pipe lines carrying oil, water. Therefore these indicators
can be used where equipment is cooled by water or oil circulation such as transformers,
chemical equipment, heavy duty bearings, compressors etc. where stopage of flow of cooling
liquid must result in initiating precautionary system or safety device.
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| Model : 4021 |
Model : 4021-M |
Model : 4021, 4021-M, 4022, 4031, 4032
Operating Specifications:
| Liquid: |
Water, Oils |
| Pipe: |
37 to 250 NB (1.5" to 10") |
| Switch: |
One or two SPST mercury switches depending on series |
| Environment: |
Indoor or Outdoor |
| Working Temperature: |
1° to 100°C of liquid in pipe |
| Working Pressure: |
0 to 4 Kg/cm² |
Application:
Consider the case of furnace transformer in which one Flow Indicator can be mounted on
suitable member of oil circulating pipe and one on water circulative pipe of heat-exchanger.
The pointer of respective Flow Indicator will indicate whether desired rate of flow is maintained
or not and switch will operate if the flow drops near to 70% to initiate precautionary
system. For similar purpose it can be used on liquid circulating pipes in chemical processes,
heavy duty bearings, compressors, etc.
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| Model : 4022 |
Model : 4031 |
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| Model : 4032 |
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EMR
| Type V |
Type D |
Type M |
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- Current Rating up to 500 Amps & Voltage Class up to 132 kV.
- Both Star & Delta applications are available.
- Step Voltage is 1500 Volts.
- In-built Selector Switch Model.
- Bi-directional Power Flow.
- Very compact dimensional arrangement.
- Linear version is available up to 14 positions.
- Up to 27 Positions are available with pre-Selector Arrangement.
- Compact Size.
- Power Switching Contacts.
- Minimum switching type.
- No Barrier board related problems.
- Critical switching components are imported from MR Germany.
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- Current Rating up to 500 Amps with 3-pole & up to 1500 Amps with 1-pole.
- Voltage Class up to 220 kV Class.
- Both Star & Delta applications are available.
- Step Voltage is 2500 Volts.
- Seperate Diverter & Selector Model.
- Bi-directional Power Flow.
- Linear version is available up to 18 positions.
- Up to 35 Positions are available with pre-Selector Arrangement.
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- Current Rating up to 600 Amps with 3-pole & up to 1800 Amps with 1-pole.
- Voltage Class up to 300 kV Class catering up to 440 kV transformers.
- Both Star & Delta applications are available.
- Step Voltage is 3300 Volts.
- Seperate Diverter & Selector Model.
- Bi-directional Power Flow.
- Linear version is available up to 18 positions.
- Up to 35 Positions are available with pre-Selector Arrangement.
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