An uninterruptible power supply (UPS)

An uninterruptible power supply, also uninterruptible power source, UPS or battery/flywheel backup, is an electrical apparatus that provides emergency power to a load when the input power source, typically mains power, fails. A UPS differs from an auxiliary or emergency power system or standby generator in that it will provide instantaneous or near-instantaneous protection from input power interruptions by means of one or more attached batteries and associated electronic circuitry for low power users, and or by means of diesel generators and flywheels for high power users. The on-battery runtime of most uninterruptible power sources is relatively short—5–15 minutes being typical for smaller units—but sufficient to allow time to bring an auxiliary power source on line, or to properly shut down the protected equipment.

While not limited to protecting any particular type of equipment, a UPS is typically used to protect computers, data centers, telecommunication equipment or other electrical equipment where an unexpected power disruption could cause injuries, fatalities, serious business disruption or data loss. UPS units range in size from units designed to protect a single computer without a video monitor (around 200 VA rating) to large units powering entire data centers, buildings, or even cities.

Electrostatic Precipitator ESP and Pre-Heater Blow Tanks Pressure Gauges

List of WIKA Pressure Gauges:

Items: Pressure gauge
Bourdon tube pressure gauge, stainless steel series
Manufacturer: Wika
Model: 232.50
Measuring system: Stainless steel
Case: Stainless steel with pressure vent
Bezel ring: Cam ring (bayonet type), stainless steel
Accuracy class: NS63: class 1.6; NS 100/160: class 1.0
Nominal size: 100 mm
Scale range: 0 kPa...400 kPa
Process connection: Diaphragm seal
Connector position: Lower mount
Window: Laminated safety glass
Pointer: Standard black
with integrated Alarm Contact, Electronic Sensor Series Model 830 E
first switch operation: breaks (2)
second switch operation: breaks (2)
Electrical connection: plug sidewise
Flange type: Flushed diaphragm
Model: 990.27
Process connection: ANSI 2” class 150# RF
Material of wetted parts: Stainless steel 316 series
Assembly: Direct assembly with PTFE lining
Fill fluid: KN2 Silicon oil

Items: Pressure gauge
Bourdon tube pressure gauge, stainless steel series
Manufacturer: Wika
Model: 232.50
Measuring system: Stainless steel
Case: Stainless steel with pressure vent
Bezel ring: Cam ring (bayonet type), stainless steel
Accuracy class: NS63: class 1.6; NS 100/160: class 1.0
Nominal size: 100 mm
Scale range: -10 kPa...10 kPa
Process connection: G ½ B (male), 22mm flats
Connector position: Lower mount
Window: Laminated safety glass
Pointer: Standard black
with integrated Alarm Contact, Magnetic Snap-Action Contacts, Model 821.3, SPDT
Electrical connection: plug sidewise
Maximun contact rating with non-inductive load
Maximum voltage: 250 V
Current ratings: Make rating: 1.0 A; Break rating: 1.0 A; Continous load: 0.6 A
Maximum load: 20 W 20 VA
No of contact sets: 1
Switch version: L
Liquid filling: Glycerine 99.7%

Item: Pressure gauge
Bourdon tube pressure gauge with liquid filling and stainless steel series
Manufacturer: Wika
Model: 233.50
Design: EN 837-1
Nominal size: 100 mm
Accuracy class: NS 100: 1.0
Scale range: 0 … 15 bar
Working pressure: Steady: full scale range
Operating temperature: Ambient: -20 … + 60 °C gauges with glycerine filling
Temperature effect: When temperature of the pressure element deviates from reference temperature (+20 °C): max. +0.4 %/10K of treu scale value
Ingress protection: IP65 per EN 60 529/IEC 529
Pressure connection: Stainless steel 316L
Connector position: Lower Mount (LM); NS 100 mm: G ½ B (male), 22 mm flats
Movement: Stainless steel
Dial: White aluminium with black lettering
Pointer: Black aluminium
Case: Natural finish stainless steel, with pressure relief in case back.
Window: Laminated safety glass.
Bezel ring: Cam ring (bayonet type), natural finish stainl. Steel.
Liquid filling: Glycerine 99.7%

Items: Pressure gauge
Bourdon tube pressure gauge, stainless steel series
Manufacturer: Wika
Model: 232.50
Measuring system: Stainless steel
Case: Stainless steel with pressure vent
Bezel ring: Cam ring (bayonet type), stainless steel
Accuracy class: NS63: class 1.6; NS 100/160: class 1.0
Nominal size: 100 mm
Scale range: 0 … 6 bar
Process connection: Diaphragm seal
Connector position: Lower mount
Window: Laminated safety glass
Pointer: Standard black
Flange type: Flushed diaphragm
Model: 990.27
Process connection: ANSI 2” class 150# RF
Material of wetted parts: Stainless steel 316 series
Assembly: Direct assembly with PTFE lining
Fill fluid: KN2 Silicon oil

List of Instruments at SSC Hydraulics Power Packs

List of Instruments at SSC Hydraulics Power Packs

• Items: Float switch
  Manufacturer: Fozmula
  Type: T/LL/70/9268
  HD Number: Z21049
  Electrical: Switching N/O
  Fitting: Standard 1” BSP

• Items: Pressure Gauge
  Manufacturer: T.J Williams
  Type: 0-40Mpa 63mm ¼” bsp
  HD Number: 016-81033-0

• Items: Pressure Switch
  Manufacturer: Telemecanique
  Type: XML-A160-D1S11
  HD Number: Z21049

• Items: Pressure Gauge
• Manufacturer: T.J Williams
• Type: 0-15Mpa 63mm ¼” bsp
• HD Number: Z21049

• Items: Pressure Switch
  Manufacturer: Telemecanique
  Type: XML-A500-D1S11
  HD Number: Z21049

• Items: Pressure Transducer
• Manufacturer: Haenni
• Type: ED505/314.221/155 0-400 bar
• HD Number: Z21163

• Items: Cooler Temp. Switch
  Manufacturer: Trafag
  Type: ISNT 11015
  HD Number: Z21049

• Items: Speed Encoder
• Manufacturer: Hagglunds Drives
• Type: SPLL85A-02
• HD Number: 378-1445-813

• Items: Pressure Gauge
  Manufacturer: T.J Williams
  Type: 0-25Mpa 63mm ¼” bsp
  HD Number: Z21049

• Items: Denison Multifunction Proportional Valve Dual Driver
  Manufacturer: Denison Hydraulics U.K Ltd.
  Model: 027-22070-0

• Items: SLC500 Analog Output Card
  Manufacturer: Allen Bradley
  Model: 1746-N041

• Items: Speed Indicator Unit
  Manufacturer: Redlion UK
  Part No: P4810000
  Dimension : 50mm x 50mm x 60mm
  Input : 4 - 20 mA
  Supply : 24 Vdc

Stacker Reaclaimer at the Coal Stock Yard

Stacker Reaclaimer at the Coal Stock Yard

ABB Hydrogen Purity Gas Analyzer

This is the link which I have mentioned related to Hydrogen Purity Gas Analyzer. Currently we are going to purchase some spares of it. Here is the lists;

1) Valve Metering
2) Power Supply Unit
3) Flow Meter
4) Ring Seal Coupling
5) Seal Top Drying Chamber
6) Gauze Drying Chamber
7) Zener Diode MTL70SS
8) Safety Barrier MTL77SS
9) Indicator Display H2/Air
10) Khatarometer Unit

I am not so sure about all these listing but I got these from the ABB's guy. Therefore I need to check details each of the instrumentation parts.

Introduction to Generator Hydrogen Gas Cooling System

The gas unit for generator gas cooling comprises the components necessary to fill the generator with hydrogen, maintain it under pressure, check the gas purity and evacuate the generator. To prevent the formation of explosive gas mixtures, the air in the generator is expelled with CO2 prior to filling with H2.

Generator Hydrogen Gas Cooling Area

H2 gas is then pumped in, displacing the C02. When evacuating the generator, the order is reversed. The H2 is first expelled with CO2; afterwards the CO2 is expelled with compressed air (dry and oil-free).