weidmann diagnostic solutions – insulogix® h … h2 in oil monitor - insulogixh.pdf · -provide...

ELECTRICAL TECHNOLOGY

WEIDMANN

A Member of the WICOR Group

WEIDMANN DIAGNOSTIC SOLUTIONS – InsuLogix® H

H2 MONITOR

Diagnostic Solutions

E-Americas BU Presenation/E BU June.ppt/JGoolgasian/June 2010 2

Typical installation


Technology background

•Technology originated from Sandia National Labs.

•Thousands of similar H2 sensors are installed in various industries such as petroleum refineries, chemical processing, nuclear power plants and fuel cells. These sensors are monitoring for Hydrogen in high pressure/highly corrosive gas streams.

•The sensor has been modified to measure Hydrogen in transformer tank (oil and headspace).

•Multiple sensing elements are used to give a wide range of H2 measurement from <10 ppm to >20,000 ppm.

•On-board temperature control circuit is compensating for external fluctuations and provide accurate Hydrogen measurement

•Improvements have been made to improve stability and sensitivity:

• Semi-permeable coatings to block interference gases

• Advanced algorithms to measure and eliminate drift


H2 sensing technology and H2 measurement

1. Pd catalyzes H2 (molecular) into 2H (atomic)

2. Hydrogen absorbed into the Pd/Ni alloy lattice creates changes in Charge Density

and Bulk Resistivity

-Hydrogen Sensing Capacitor (HCAP) measures Hydrogen from 0.0015% to 0.5%

-Hydrogen Sensing Resistor (HRES) measures Hydrogen from 0.5% to 100%

A heater and a temperature sensor are embedded with the chip.

H2

0.5%0.0015%

Capacitance

H2 by Volume

Pd-Ni

H2

H Pd-Ni

H2

H

H2

Pd-Ni

H

H2Pd-Ni

H

H2 by Volume0.5%

Resistance

100%


Monitor’s Components


WEIDMANN

Prototype field validation - 392 MVA, 500kV transformer, 15 months

Yukon Bank 3 - Oil

0

10

20

30

40

50

60

70

80

90

100

5/26/10

6/26/10

7/26/10

8/26/10

9/26/10

10/26/1011/26/1012/26/101/26/11

2/26/113/26/11

4/26/11

5/26/11

6/26/11

7/26/11

Oil

ph

ase

H2

(pp

m)

H2scan - Oil

DGA

Yukon Bank 3 - Gas

150

350

550

750

950

1150

1350

1550

1750

05/26/1006/26/1007/26/1008/26/1009/26/1010/26/1011/26/1012/26/1001/26/1102/26/1103/26/1104/26/1105/26/1106/26/1107/26/11

Gas

ph

ase

H2

(p

pm

)

H2scan-Gas

Gas Analysis


WEIDMANN

Field validation – oil and gas measurement

Yukon Bank 3

0

10

20

30

40

50

60

70

80

90

100

05/26/1006/26/1007/26/1008/26/1009/26/1010/26/1011/26/1012/26/1001/26/1102/26/1103/26/1104/26/1105/26/1106/26/1107/26/11

Oil

-ph

ase

H2

pp

m

0

200

400

600

800

1000

1200

1400

1600

1800

Ga

s-p

ha

se H

2 p

pm

H2scan-Oil

DGA

H2scan-Gas

Gas Analysis


WEIDMANN

Prototype field validation - 185 MVA, 230kV transformer – 10 months

Allen - Bank 6 - Drain Valve

0

20

40

60

80

100

120

140

160

180

10/11/1011/08/1012/06/1001/03/1101/31/1102/28/1103/28/1104/25/1105/23/1106/20/1107/18/1108/15/11

Oil-

ph

ase

H2

pp

m

Allen - Bank 6 - Top Oil

0

50

100

150

200

25010/11/1011/08/1012/06/1001/03/1101/31/1102/28/1103/28/1104/25/1105/23/1106/20/1107/18/1108/15/11

Oil

-ph

ase

H2

pp

m


WEIDMANN

Other Validation

25

Monitors


WEIDMANN

Other Validation

26


WEIDMANN

Installations of commercial version


WEIDMANN

The kit that is installed in transformer’s control cabinet


WEIDMANN

Installations of commercial version


WEIDMANN

Validation of commercial version after three weeks in field

353371B

13861315A

InsuLogix™HDGATransformer


WEIDMANN

Accessories kit (#1,#8 and #5 are included in standard configuration)


InsuLogix®H advantages and key points

•Sensor on a micro chip – Palladium-Nickel alloy

•Ruggedized sensor and proven technology for H2 measurement - Thousands of sensors are installed in petrochemical applications, in high pressure and highly corrosive gas streams

•Capable of measuring the H2 in both oil and gas phases of power transformer and other oil filled equipment

•Installation under 45 minutes

•No consumables, no sensor degradation, no moving parts

•Small package, the lowest price in the industry makes it affordable down to network transformers, other distribution transformers, special transformers and LTCs

•4-20mA output, alarm relays (absolute and trend levels), serial communication, system watchdog, MODBUS over RS485, data recording

•Compliant to standards for operation in substation environment, CE marking

•Water submersible.


WEIDMANN

Specifications

0-100%RHHumidity operating

1 Year @ 15 min recording intervals. Intervals can be set up by end user.Data Storage

-40°C + 105°COil Temperature Range

-40°C +85°CStorage Temperature

-40°C +55°COperating Temperature

1 ppmResolution (H2)

< 60 minutes

(50% of step change)

Response Time (H2)

10% of reading or 15 ppmRepeatability ² (H2)

20% of reading or 25 ppmAccuracy¹ (H2)

25-20,000 ppmMeasurement Range (H2)

Surge withstand (IEEE 37.90.1-2002), IP67 (IEC 60529, IEC 60068-2-6), NEMA 6, EMI/EMC, CE Mark

(IEC 61000)

Standards

One, three colorsLED

Swept 50-180Hz, 0.004”Vibration

Withstands 2 seconds of power lossPower fault

>10 yearsExpected life

2 yearsWarranty

Compression fitting, on an existent valveInstallation

10GShock

24V DC nominal (15 to 28V DC) – 30W Max or 86VAC-240VAC Power

RS485-MODBUSSerial Output and protocol

4-20 mA, isolated and device poweredAnalog Output

Three relays as follows: Two user configurable; One for self test; Relays are isolated: 3A, 240V contacts;Relays

< 2%Cross-sensitivity to HydroCarbons


WEIDMANN

Overview - Proof of Performance and Operation Program (PoPOP)Program’s objective: To demonstrate the sensor’s operation and performances in transformer’s headspace and/or transformer oil.

The PoPOP is addressed to: Utilities/industrials that are new users of InsuLogix™H.

Program’s duration: Up to three months.

WEIDMANN’s commitment:

-To supply one or two monitors free of charge, for a duration that will not exceed three months.

-Provide an applications engineer to supervise the first installation, free of charge.

-Provide three syringes for oil sampling/monitor, and perform three DGA for each unit, free of charge.

Customer’s commitment:

-Install the monitor(s)

-participate in monthly conference calls with WEIDMANN to discuss the monitor(s) operation and performance

- Download the database and transmit it to WEIDMANN at least twice during the trial period, draw oil samples at installation, 30 days and 60 days periods, send the oil samples to WEIDMANN for analysis.

-pay for the monitors at the end of the trial period, subject to monitor(s) performance and operation. Return the monitor(s) to WEIDMANN if their operation is not judged as satisfactory.


WEIDMANN

Thank you !

weidmann diagnostic solutions – insulogix® h … h2 in oil monitor - insulogixh.pdf · -provide...

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