Application Note – Earth Leakage Relay 4-20mA Failure

It has been identified that some customers are experiencing failures of the 4-20mA circuit in our discrete EL relays. The fault has no impact on the relay’s trip function capability, which remains fully functional as designed. The fault is unveiled as an incorrect 4-20mA output regulation. The 4-20mA output is provided for remote monitoring of the effective EL current being detected by the relay.

Application Note – ELV-PRO Equipment Update

The ELV-PRO relay is a successor to the VSD-Guard, a premium Earth Leakage Relay providing users with a greater visibility and insight into the earth leakage currents within their system. In recent months a number of concerns have been raised regarding the relay experiencing nuisance tripping. The concerns identified with the product do not prevent the ELV-PRO detecting Earth Leakage faults; rather users may experience nuisance tripping. The relay does not present a safety risk with all trips / failures resulting in a safe failure condition.

Case Study – Containerised Substation UK Resources Tunnelling Project

Ampcontrol have been contracted as the sole supplier for a large resources tunnelling project and are set to deliver a range of equipment, cable and maintenance services throughout the construction phase of the project.

Designed to supply power to tunnel surface operations including a welding factory, the containerised substation developed by Ampcontrol will act as the main distribution system on-site.

Application Note – Earth Leakage Relay Power Up Trip

Ampcontrol has recently been made aware of a condition that causes the ELD V3 and ELV V2 relays to power up into a tripped state. The trip is related to the internal charge of the super-capacitor. The issue may cause delayed power up of equipment as a reset will be required if a trip occurs.

The cause of this trip is not a safety concern nor will it pose any risks to operations experiencing this condition. The trip was detected during the commissioning stage where the equipment was undergoing repetitive power cycles.

User Manual – Outlet Test System (OTS)

The Ampcontrol Outlet Test System (OTS) provides a fully automated outlet testing facility. The OTS completely eliminates paper-based record keeping by concurrently updating a historical database with the latest test data.

The OTS is comprised of an OTS module, embedded within the outlet electrics, and an OTS Comms Module, mounted on the door to provide Bluetooth connectivity to the outlet tester.
All tests are initiated wirelessly via the OTS Application Software, which is installed on compatible Bluetooth enabled devices. Each outlet is able to be individually targeted.

All local test records are managed within the OTS Application Software until the tablet performs an authorised sync with the AWARE cloud storage. When this occurs all local test reports are uploaded to the cloud, and then all Assets and Users are refreshed for selected site. All OTS test records can be accessed by anyone with internet access and authorisation (user account).

User Manual – Outlet Testing System – Earth Leakage (OTS-EL)

The Ampcontrol Outlet Test System – Earth Leakage (OTS-EL) provides a fully automated outlet earth leakage testing facility. The OTS-EL completely eliminates paper-based record keeping by concurrently updating a historical database with the latest test data.

The OTS-EL is comprised of an OTS-EL module, embedded within the outlet electrics, and an OTS Comms Module, mounted on the door to provide Bluetooth connectivity to the outlet tester.

User Manual – Outlet Test System Dashboard

The Ampcontrol AWARE dashboard provides a cloud based IOT solution to multiple functions offered by Ampcontrol. In regards to the Ampcontrol Outlet Test System (OTS) and Outlet Test System – Earth Leakage (OTS-EL), the dashboard will provide an asset management tool, OTS testing personnel management tool and Test record management tool. The large benefits for the dashboard with regards to test report keeping is that all test reports can be accessed / viewed whenever internet access is available. The OTS completely eliminates paper-based record keeping by concurrently updating a historical database with the latest test data.

Technical Datasheet – Outlet Test System – Earth Leakage (OTS-EL)

The Ampcontrol Outlet Test System – Earth Leakage (OTS-EL) provides a fully automated outlet EL testing facility. The OTS completely eliminates paper-based record keeping by concurrently updating a historical database with the latest test data.

The OTS-EL is comprised of an OTS-EL module, embedded within the outlet electrics, and an OTS Comms Module, mounted on the door to provide Bluetooth connectivity to the outlet tester.

The OTS-EL System can be installed into Ampcontrol Substations, Distribution Boards and Outlet Control Boxes. The OTS-EL greatly simplifies the statutory testing process, performing a hands free, automated testing function whilst simultaneously providing a comprehensive record management tool.

User Manual – Outlet Test System Application (OTS)

The Ampcontrol Outlet Test System (OTS) and Outlet Test System – Earth Leakage (OTS-EL) provide a fully automated testing facility. The OTS completely eliminates paper-based record keeping by concurrently updating a historical database with the latest test data. The OTS (or OTS-EL) is comprised of an OTS module, embedded within the outlet electrics, and an OTS Comms Module, mounted on the door to provide Bluetooth connectivity to the Tester. The full OTS module will test the outlet’s earth leakage, earth continuity, earth fault lockout and frozen contactor protection functions while the OTS-EL version will limit testing to earth leakage protection only.

All tests, for both the OTS and OTS-EL, are initiated wirelessly via the OTS Application Software, which is installed on compatible Bluetooth enabled devices. Each outlet is able to be individually targeted to prevent incorrect outlet testing. The test record for each outlet is managed within the OTS Application Software, with all records automatically uploaded to cloud storage when the tablet gains network access. All test records for any OTS equipped outlet on a site can be accessed by anyone with internet access, user ID and password.

Technical Datasheet – ELM V2 Relay

The Ampcontrol ELM V2 earth leakage relay has been designed and approved for use on earth fault limited systems providing earth leakage protection (earth fault protection). The relay is also suitable for other applications where equipment or system earth leakage protection is required.