Diagnostic equipments HOME   |   Product   |   Diagnostic & Test Equipments   |   Diagnostic equipments

DGA

Features & Benefits

• Individual measurement of Hydrogen (H2), Carbon Monoxide (CO), Acetylene (C2H2) and Ethylene (C2H4)
• Moisture in Oil (H2O) measurement
• Easy to mount on a transformer valve (G 1½" DIN ISO 228-1 or 1½" NPT ANSI B 1.20.1)
• Installation on the operational transformer without any operational interruption
• Advanced software (on the unit and via PC)
• Maintenance free system
• Communication interfaces ETHERNET 10/100 Mbit/s (copperwired / RJ 45 or fibre-optical / SC Duplex) and RS 485 to support MODBUS®RTU/ASCII, MODBUS®TCP, DNP3 proprietary communication and IEC 61850 protocols
• Optional 2G/3G modem with external adhesive antenna
• Optional DNP3 serial modem for SCADA connection
• Optional IEC 61850 modem for SCADA connection
• Optional HV and LV bushing sensors for HV and LV bushing monitoring applications via communication interface

Product Description

The HYDROCAL 1005 is a permanently installed multi-gas-in-oil analysis system with transformer monitoring functions. It individually measures, Moisture in Oil (H2O) and the key gases Hydrogen (H2), Carbon Monoxide (CO), Acetylene (C2H2) and Ethylene (C2H4) dissolved in transformer oil.


As Hydrogen (H2) is involved in nearly every fault of the insulation system of power transformers and Carbon Monoxide (CO) is a sign of an involvement of the cellulosic / paper insulation the presence and increase of Acetylene (C2H2) and Ethylene (C2H4) further classifies the nature of a fault as overheating, partial discharge or high energy arcing.

Multi Gas in Oil Analysis System

Connection

Specifications

Optional nominal voltages
of auxiliary supply
120 V -20% +15% AC 50/60 Hz or
230 V -20% +15% AC 50/60 Hz or
120 V -20% +15% DC or
230 V -20% +15% DC
Other nominal voltages on request!
Power consumption max. 400 VA
Housing Aluminium
Dimensions 263(W) x 274(H) x 331(D)
Weight About 13.5kg
Operation temperature(ambient) -55°C ~ +55°C(below -10°C display function locked)
Oil temperature(inside transformer) -20°C ~ +90°C
Oil Pressure up to 800 kpa(negative pressure allowed)
Connection to valve G 1½ "DIN ISO 228-1 or 1½ "NPT ANSI B 1.20.1