Online gas-in-oil measurement sensor Hydrocal 1005 Offshore, a system with 5 outputs for measuring:
- H2 Hydrogen
- CO Carbon monoxide
- C2H2 Acetylene
- C2H4 Ethylene
- H2O Moisture
Online gas-in-oil measurement sensor Hydrocal 1005 Offshore, a system with 5 outputs for measuring:
The HYDROCAL 1005 Offshore is a permanently installed multi-gas-in-oil analysis system with transformer monitoring functions:
It individually measures the most relevant gases dissolved in transformer oil such as:
Furthermore, it measures moisture (H2O) present in dielectric oil.
The HYDROCAL 1005 Offshore is specially designed for the harsh conditions (saltwater, corrosion) on offshore platforms (e.g. offshore windmill parks). A special painted housing with no window and the application of chrome-nickel and stainless steel ensures the device's reliability and persistence.
The device can serve as a compact transformer monitoring system by the integration/connection of other sensors present on a transformer via its optional analog inputs:
It is further equipped with digital outputs for the transmission of alerts or the execution of control functions (e.g. control of a cooling system of a transformer):
The Hydrocal 1005 Offshore can be used as a complete monitoring system for the condition of the transformer. The main monitoring options are listed below:
The Bushing Monitoring system simultaneously monitors the bushing leakage current of two rows of three-phase groups of bushings. The system incorporates three different measurement modes on each tested component to provide accurate power factor and capacitance values to evaluate the condition of bushing insulation.
The measurement modes are the following:
The bushing sensors/adapters are connected to the capacitor taps designed for all types of bushings to allow measurement of the leakage current up to 140 mA. The adapters are designed for bushings with grounded and undergrounded capacitor taps. The adapter is designed to prevent voltage from developing on the equipment, in case the sensor is disconnected from the Bushing Monitoring system.
Different bushing sensor configurations are possible:
Configuration with 3, 6, 9 or 12 bushing sensors is possible.
Technical Data | |
Optional nominal voltages of auxiliary supply: | 120 V -20% +15% AC 50/60 Hz |
Power consumption | Max. 400 VA |
Housing | Aluminum with painting C5M / stainless steel V4A |
Dimensions | W 263 x H 263 x D 327.5 mm |
Weight | Circa 16.5 kg |
Operation temperature (ambient) | -55°C ... +55°C (below -10°C display function locked) |
Oil temperature (inside transformer) | -20 °C ... +90 °C |
Storage temperature (ambient) | -20 °C ... +65 °C |
Oil pressure | up to 800 kPa (negative pressure allowed) |
Connection to valve | G 1½" DIN ISO 228-1 1½” NPT ANSI B 1.20.1 |
Safety | CE certified |
Insulation protection | IEC 61010-1:2002 |
Degree of protection | IP-55 |
Analog outputs | ||
Type | Range | Default concentration (Free assignment) |
1 Current DC | 0/4 ... 20 mA DC | Hydrogen H2 |
1 Current DC | 0/4 ... 20 mA DC | Acetylene C2H2 |
1 Current DC | 0/4 ... 20 mA DC | Ethylene C2H4 |
1 Current DC | 0/4 ... 20 mA DC | Carbon Monoxide CO |
1 Current DC | 0/4 ... 20 mA DC | Moisture in Oil H20 |
Digital Outputs | ||
Type | Control Voltage | Max. Switching capacity (Free assignment) |
5 Relay | 12 V DC | 220 V DC / V AC / 2A / 60 W |
Communication |
RS 485 (proprietary or MODBUS® RTU/ASCII protocol) |
ETHERNET 10/100 Mbit/s copper-wired / RJ 45 or fibre-optical / SC Duplex (proprietary or MODBUS® TCP protocol) |
2G/3G modem with external adhesive antenna (Option) (proprietary protocol |
DNP3 serial modem (Option) |
IEC 61850 modem for SCADA connection (Option) |
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