INQUIRIES: +234-816-730-0200 info@intesatgroup.com

Products

Monitoring

The HVPD Kronos Permanent Monitor

The HVPD Kronos Permanent Monitor is engineered for continuous monitoring of complete electrical networks by detecting both irregular PD activity as well as longer-term trend increases in PD activity.

Figure 1 HVPD Kronos Permanent Monitor

Thus, provides prompt warning against MV and HV insulation faults and supports condition based maintenance schemes in order to reduce unexpected outages, downtime and ultimately maintenance cost.

This equipment can be deployed on the following assets:

Compatible Sensors:

HVPD Kronos Ultimate Software

This software contains all the needed tools for data acquisition, PD trends analysis and Phase Resolved Partial Discharge (PRPD) patterns as well as report generation.

To separate different PD sources from noise, a range of data analysis tools are available within this software, including PD event recognition, pulse waveform clustering and machine learning.

24-channel Monitor

The availability of up to 24-channels and synchronous acquisition on 6 channels, enables this device to be used to monitor multiple assets simultaneously in addition to comparing data from different sensors.

HVPD Kronos WebView

This Monitor is supported by our intuitive web-based platform HVPD Kronos WebView.

Capable of navigating across all sites and focuses on the individual asset with few clicks, our software uses a traffic light system to display the condition of the asset.

Monitors Using Pre-installed sensors

Connection to any existing pre-installed PD couplers.

At Asset or Remote Installation

This equipment may be attached to on-line PD sensors installed at each asset or using our patented remote monitoring technique.

At-Asset Monitoring

This particular type of monitoring uses permanently installed sensors on rotating machines or transformers with the HVPD Kronos On-line Partial Discharge Monitor.

For monitoring of rotating machines, HFCT or HVCC sensors can be used. while HFCT or Bushing Tap Sensors are used with transformers.

COMPLETE REMOTE MONITORING

This technology has been designed basically for the on-line PD monitoring of rotating machines including Ex/ATEX HV motors and generators situated in hazardous gas zones.

This system uses HVPD Kronos Monitors and advanced software algorithms, making it possible to carry out remote On-line PD monitoring of complete HV circuits. This technology nonetheless is not limited to Ex/ATEX motors but also monitor the insulation condition of cables, switchgear and transformers, achieving complete network monitoring.

This technique makes it possible to identify all three types of PD that could originate from an HV motor feed circuit, including switchgear PD, cable PD using a combination of wideband, HFCT and TEV sensors installed at the switchgear cable box.

ADVANTAGES:

  • Its synchronous measurement permits differentiation between end winding (phase-to-phase) and slot section(phase-to-earth) PD
  • Provides a warning of HV insulation deterioration before it causes costly equipment failure and unplanned outages.
  • Its monitoring is comprehensive and absolute on MV/HV networks
  • Dedicated support with HVPD Kronos Care service contract

Ex/ATEX RATED

Monitors available approved for installation in hazardous gas zones. ATEX EEX-D IIB T5 IP66 for zones 1 and 2.

UHF Sensor Node

Enables connection to UHF sensors for monitoring Gas Insulated switchgear and transformers.

ON-line PD Monitoring Data Integration

Using wide range of industry communication protocols such as Modibus, DNP3, OPC etc SCADA and historian integration is possible. In addition, data can be transferred to the cloud for remote access. With internet connection, email or SMS alerts can be sent upon alarm.

HVPD Kronos Care

We provide a care plan with the different levels of comprehensive support that suits your needs. This is where our expert data analysts can provide you with regular in-depth, and summarized reports on weekly basis. Additionally, our PD engineers are available in case of any alarm, software updates and extended hardware warranty options ensure your HVPD Kronos monitoring system is kept in service and up to date

(2) THE HVPD KRONOS PORTABLE MONITOR is a 24-channel On-line Partial Discharge Monitor used for continuous monitoring on short-term installation. It is designed to be moved around the network within 1-3 months period, where it provides a diagnostic insulation condition assessment of in-service plant, such as switchgear, cables, transformers, and rotating machines of 3.3 KV capacity and beyond.

 

Figure 2 HVPD Kronos Portable Monitor

This monitor can be used routinely or after a high PD level is discovered with the PDS Insight or HVPD Kronos Spot Tester. The system trends PD activity over time and discovers load variations and irregular PD activity. Intesat services Limited can provide dedicated service contract together with the monitoring technology  and HVPD Kronos Ultimate Software to provide a comprehensive support to condition-based management scheme.

COMPATIBLE SENSORS:

FEATURES:

  • Suitable for short term continuous monitoring of 1-3 months
  • Supports Condition-Based Maintentance schemes, thereby reducing unplanned outages, downtime and maintenance costs.
  • This monitor captures six signal channels synchronously using its unique Smart Multiplexer.
  • With 24 sensor inputs, this Monitor covers up to four HV motors/transformers together with the switchgear and feeder cables.
  • Generates a simple on-line Partial Discharge criticality number for the asset from 0-100% through benchmarking and trending the central HVPD Database.
  • Compatible with all our sensors for all applications.

Advantages:

  • This Monitor offers mobility around the network, enabling fast deployment of the system at the same time maintaining the full capacity of the continuous monitoring system.
  • It can be used for periodic monitoring of assets at-risk or to carry out short-term evaluations.
  • Synchronous data capture on multiple channels enables advanced OLPD identification and noise separation.
  • At the end of monitoring period a report is issued with asset management recommendations.
  • This monitor comes with a specially designed, rigid carry frame for easier transport around the network.
  • Available for outright purchase or rental.

 

HVPD Kronos Lite

This is a permanent three channel Partial Discharge Monitor designed to offer asset managers and maintenance teams information about the electrical insulation condition of their MV switchgear, thereby minimizing unplanned outages due to electrical insulation failures.

Figure 3 HVPD Kronos Lite

With this system, the safety of the on-site personnel and better maintenance decisions are significantly guaranteed..

Designed for the condition-based maintenance schemes of secondary, remote and unmanned substations.

COMPATIBLE SENSORS:

FEATURES:

  • Detects PD insulation degradation in MV switchgear and cables
  • Combines three PD sensor types: HFCT, AA & TEV
  • Modular in nature, so suit any size of MV switchgear line-up.
  • Network-enabled to deliver insulation condition data to asset management and maintenance teams in real time.

ADVANTAGES:

  • Provides 24/7 electrical insulation condition data of your MV switchgear.
  • Supports condition-based maintenance schemes.
  • Separate PD from background noise – Phase Resolved Partial Discharge (PRPD) patterns
  • Delivers instant emails / SMS alarms to asset management and maintenance teams.
  • Network-enabled for connection to the local server or SCADA.
  • Suits MV switchgear panel/line-up arrangements/access restrictions.

DIAGNOSTIC PRODUCTS:

HVPD KRONOS SPOT TESTER is a six-channel  synchronous, battery-powered test unit with a rugged and compact design optimized for field portability. Its quick and easy to set up in order to detect,  measure, and locate Partial Discharge in second.

This device detects early stages of insulation deterioration before providing an early warning against MV and HV insulation faults and also supports condition-based maintenance scheme.

HVPD Kronos Spot Tester can be used on the following assets:

COMPATIBLE SENSORS:

Diagnostic

Spot Tester

The HVPD Kronos Ultimate software is installed in a laptop for spot testing or Portable Partial Discharge Monitoring Server (P-PDMS) for short term monitoring.

The Portable Server enables set-up of the monitoring session and data storage. Remote access to the system and cloud integration is possible via an optional modem.

HANDHELD:

The HVPD’s PDS Insight 2 is a handheld On-line PD detection unit for condition-based maintenance and substation access safety. It is simple to use with minimal set up required. This device can be placed on your palm for safe, reliable testing of MV electrical assets.

This device can be used on the following assets:

Figure 5 HVPD PDS Insight 2

PHASED RESOLVED PARTIAL DISCHARGE (PRPD) FEATURE:                                                     

The PRPD feature in the PDS Insight 2 helps to differentiate misleading background noise from true PD sources, helping to ensure you avoid in-service failures and costly unplanned outages.

Handheld

PDS Insight 2

The HVPD Kronos Ultimate software is installed in a laptop for spot testing or Portable Partial Discharge Monitoring Server (P-PDMS) for short term monitoring.

The Portable Server enables set-up of the monitoring session and data storage. Remote access to the system and cloud integration is possible via an optional modem.

HANDHELD:

The HVPD’s PDS Insight 2 is a handheld On-line PD detection unit for condition-based maintenance and substation access safety. It is simple to use with minimal set up required. This device can be placed on your palm for safe, reliable testing of MV electrical assets.

This device can be used on the following assets:

Figure 5 HVPD PDS Insight 2

PHASED RESOLVED PARTIAL DISCHARGE (PRPD) FEATURE:                                                     

The PRPD feature in the PDS Insight 2 helps to differentiate misleading background noise from true PD sources, helping to ensure you avoid in-service failures and costly unplanned outages.

Sensors

Our HVPD’s range of On-line Partial Discharge sensors can detect dangerous PD activity in rotating machines, cables, switchgear and transformers.

TYPES OF SENSORS

High frequency Current Transformers  (HFCT) sensors are inductively coupled around the MV/HV cables to provide a means for On-line PD measurements to be made on in-service cables, transformers and rotating machines.

Figure 6 High Frequency Current Transformers (HFCT)

Each sensor inductively measures the high frequency current signals within the PD pulses flowing in the earth or the conductor of the cable without the need for any direct, galvanic connection to the HV.

The sensors can be installed permanently during a planned outage or at the build stage of a project to enable On-line PD monitoring or routine spot testing.

On the other hand, a temporary installation of the HFCT sensors can be carried out if the cable earth is available outside of the termination box, enabling On-line PD spot testing without the need for permanent sensors or outage.

HFCT Sensor installation at crutch the of 3-core cable. Belted cables or with individually screened conductors with earth straps looped back through the HFCT.

HFCT sensors installation on single core cables. Earth strap looped back through HFCT. Mounted using silicone collars.

HFCT SENSOR RANGE:

  HFCT 100 HFCT140 HFCT220 SMART-TB3
Installation Type Permanent/Portable Permanent/Portable Permanent Permanent
Internal Aperture 45 mm 94 mm 140 mm 96 mm
Ex/ATEX Certified Version Yes Yes Yes Yes
Outdoor Version No Yes Yes Yes

High Voltage Coupling Capacitor (HVCC) sensors are designed for permanent installation on MV/HV rotating machines to measure PD pulses occurring in the stator windings via a direct galvanic connection to the HV terminals.

Figure 7 High Voltage Coupling Capacitor (HVCC)

Once permanently installed, with the signal connections brought out to an external termination box, the sensor enables on-line PD monitoring and spot testing without the need for an outage. One coupling capacitor is installed on each phase of the machine for measurement of both phase-to-phase (end-winding) and phase–to-earth (slot section) discharges.

!5KV HVCC  sensors installation one sensor per phase in the motor terminal box

7 KV HVCC sensors installation one sensor per phase in the motor terminal box.

All types of these sensors are compatible for use with the HVPD Kronos Permanent and HVPD Kronos Spot Tester.

HVCC sensor range

  7KV 1000pF 15KV 500pF 16KV 80pF
Dimensions W xDxH 134x81x68 mm 186x135x198 mm 186x135x198 mm
Weight 0.6 kg 1.8 kg 2 kg
Ex/ATEX Certified Version No Yes Yes

TRANSIENT EARTH VOLTAGE (TEV) SENSORS are designed to detect local and high frequency PD pulses in switchgear, cable sealing ends, transformers and other plant. It is a compact, electromagnetic sensor capable of detecting high frequency radiation that is coupled onto an earthed metal surfaces from local PD within switchgear, bushings and other plant. TEV can be used to make on-line PD measurements in decibels (dB).

Figure 8 Transient Earth Voltage (TEV)

The TEV sensor can be magnetically attached or bolted to the outer surface of metal-clad switchgear typically on cable boxes or next to cable terminations. Also available is the outdoor type

TEV sensor installed on switchgear Permanently installed to the inner surface of the switchgear housing using permanent clip.

TEV sensor attached to switchgear. Magnetically attached to the outside of the switchgear.

The TEV outdoor type fully weatherproof, installed on HV cable sheathing. Installed on the outer metalwork or earthed parts of the HV cable sheathing using a securing strap.

All types of these sensors are compatible for use with the HVPD Kronos Permanent and HVPD Kronos Spot Tester.

TEV sensor range

  Indoor Outdoor
Fixing/mounting Permanent Magnets and/or bracket Bolted or securing strap
Dimensions W x D x H 60 x 64 x 30 mm 60 x 40 x 120  mm
Weight 0.6 kg 1.8 kg

Airborne Acoustic (AA) ultrasonic sensor detects airborne acoustic signals from PD into air, including corona ( in outdoor substations ) and surface discharges and tracking ( in indoor air-insulated switchgear).

Figure 9 Airborne Acoustic (AA)

The AA sensor can be installed either inside or outside the switchgear panel, with clear line of sight to the PD source. It’s used in the HVPD’s MV AIS Switchgear Monitoring Solution in conjunction with the HVPD Kronos Monitor and Linearplex expansion module. When there a need for On-line PD monitoring of the MV AIS, the AA sensors are daisy-chained inside and along the AIS switchboard, typically with one sensor per switchgear panel.

Bushing Tap Sensor (BTS) comes with a bespoke  Bushing Tap Adaptor (BTA) that detects PD signals from the transformer windings and the bushings, through the capacitance of the bushing.

Figure 10 Bushing Tap Sensor (BTS)

These sensors are installed permanently during a planned shutdown or at the build stage of a project to enable On-line PD monitoring or spot testing without the need for outages.

The BTS keeps the bushing tap grounded in the same way as the original tap cover, preventing any voltage rise on the bushing tap when in-service and is suitable for outdoor use.

The two pictures above shows the permanent installation of BTS on 275KV Transformers.

This sensor is compatible for use with the HVPD Kronos Permanent and HVPD Kronos Spot Tester.

BTA Range

Manufacturer Model
IEEE C57 19.01 Type A
ABB GOE, GSB, GOH, GOB, GOM, GSA, GOA
ABB Micafil RTKF, RTKG, AirRIP
HSP SETFt, EKTG
Passoni Villa PAO, PCTO, PNO, POBO, PSO, PWO, PTFR, PCTR, PHIPTHR, PNR, PWS, PWHS, PABS, POBR
Trench COT, COTC, SOT

Ultra High Frequency (UHF)Barrier Sensor is attached over the insulation barriers of Gas Insulated Switchgear (GIS).

Figure 11 Ultra High Frequency (UHF) Barrier Sensor

It can be connected to the UHF converter – an add on feature of the HVPD Kronos Spot Tester or used as part of HVPD’s GIS Monitoring Solution, enabling you to conduct UHF detection or permanently monitor for PD in HV/EHV GIS

Flow Meters

The Focus 2.0 Optical Gas Flow meter uses patented laser technology to measure gas flow by sensing the velocity of microscopic particulates inherently occurring in gas streams. It used to accurately measure a wide range of flow rates in a variety of pipe diameters ranging 4″ to 36″utilizing patented  Laser 2 Focus Velocimetry.

Figure 12 Optical Flow Meter

This meter consists of:

  • A flow sensor
  • An optical flow processor
  • Heater power supply
  • Installation software
    • Step by step configuration Wizard
    • User friendly
    • Easy to follow
  • Quick & easy installation / maintenance
    • One installation point
    • Less than three hours to install
    • No system shutdowns required
    • No expensive annual calibration

APPLICATIONS

  • Gas flow measurement for flare & vent gas
  • Flare monitoring for waste reduction and enhancing process efficiency
  • Emissions measurement for environmental regulations compliance
  • Bio- gas measurement

BENEFITS

  • Ease of installation & maintenance
  • Cost effective and convenient
  • High turndown ratio 1500:1
  • ASME complaint – (Code section VIII, Division 1)
  • CSA Certified to be intrinsically safe
  • Windows 10, 64-bit compatible software

Valves

Barber Pigging Valve is an established, reliable, and effective way of sending and receiving pipeline pigs.  For decades this valve has proven its reliability in the oil & gas industry and continues to be the most cost effective environmental friendly solution to any pigging requirement. The valve sizes range from 2″ through 8″.

Figure 13 Barber Pigging Valve

The Barber pigging valve design is a simple, safe and convenient way to insert and remove flow line pigs.  It eliminates excessive equipment and reduces the number of operations, thus limiting expenses and loss of product.

Construction

  • Materials meet API specification 6-A & 6-D, for low temperature -46C (-50F)
  • A.C.E standard MR-01-75 for sour service
  • The Valve Ball is type 300 stainless steel, surface hardened by Nitrating to resist scratching & corrosion.
  • Various valve coatings or material options available for customer specifications
  • Seat carriers are type 300 stainless steel with seat inserts of various materials to meet specified applications.
  • The 2″ & 3″ Barber Pigging Valves have a seat supported ball.
  • The 4″ through 8″ Barber Pigging Valves have a trunnion-mounted ball to reduce low turning torque.
  • On flow line applications that transition from 2″ to 3″ or from 3″ to 4″ the larger valve can be installed to receive and send both sizes of pigs thus simplifying applications and reducing costly expenses.

Features

  • Over-sized entry bore to accept swollen pigs
  • Entry cap vent holes to provide positive release of trapped pressure before removal.
  • Bleed valve connections (1/2″ NPT) to facilitate a choice between venting and draining
  • Integral Flanges
  • Easy shop/field maintenance.
  • Replacement parts and seal kits are readily available
  • Positive stop plate is easily repositioned 90 degrees on the operating stem to accommodate flow direction.
  • Operating stem is easily marked to verify the position of the ball
  • Cap lugs ensure that pigs are fully inserted into the ball cavity eliminating binding when rotating the valve

Enhanced Design Features

  • New seat pocket & seat design features to incorporate sealant fittings allow for on-site servicing

Saf-T-Matic ESD Valve

This is an essential component for all flow line applications. It is a highly dependable safety valve which automatically controls the shutdown of flow lines when pressures exceed, or fall below, pre-determined limits. This Valve can be used in various applications including oil well flow lines, gas lines, hydraulic lines, or in any situation requiring high and low pressure limits.  It provides complete line protection of high pressure overloads and/or loss of fluids in the case of a line rupture. The working pressure for the Saf-T-Matic Valve ranges from 15 psi to 15,000 psi

Figure 14 Saf-T Matic ESD Valve

Design Advantages

Fail-Safe

The Saf-T-Matic surface shut-down valve is held open by control pressure in the Direct Control, Remote Control or Pilot Control Head. A loss of this control pressure, or a mechanical failure within the unit, will close the valve without the assistance from another power source.

Manual Opening

Once the Saf-T-Matic closes, it must be opened manually to return it to service. This safety feature prevents accidental automatic opening before desired or required. The balanced stem of the valve allows ease of reopening against high body pressures.

Versatile

The Saf-T-Matic offers several safety system shutdown options including Direct Operated, Remote Operated, Pilot Operated and in combination with other devices and equipment as required by the customer.

Adaptable

Saf-T-Matic valves can be matched to any standard connection and may be installed on wellheads, flow lines and at many other points requiring safety shutdown systems.

Wide Operating Ranges

The Saf-T-Matic valve can operate with control pressures ranging from 15—15,000psi.

Straight-Through Flow

Bore alignment reduces flow turbulence, erosion and pressure drop. Pressure drop is taken at the outlet seat to reduce the possibility of formation of hydrates in the valve.

Non-Freezing

The Saf-T-Matic does not vent to atmosphere. This reduces or eliminates the possibility of freezing of the control head Mechanism.

Field Setting

Pressure settings of the Control Heads may be changed in the field while the valve is in service.

 

 

Elite Oil & Gas Engineering Services

Contact Us

Administrative Office

19 Tombia Street Opposite Polo Club

GRA, Port Harcourt, Nigeria.

+234-816-730-0200

intesat@intesatgroup.com

Technical Office

Along Airport Road, Port Harcourt, Nigeria

+234-802-730-0200

info@intesatgroup.com

Get In Touch