Rail Industry Test and Measurement

Rail Test & Measurement Equipment from T & R Test Equipment

DMO200 High Current Micro-Ohmmeter	200ADM-P Secondary Current Injection Test Set
Automatically maintains desired output current	Flexible & capable of supplying currents up to 200A AC into a variety of loads
Rail Application	Rail Application
Used to look at any current carrying conductor where low resistance needs to be assured. This would include cable terminations, hook link switches and at the circuit breaker heads. Auto testing and test issue warning 1-200A output adjustable whilst output is on 100A continuous current USB data storage – No special software needed (CSV file format) Full colour display Programable settings with user set test limits 90-246V universal supply voltage Lightweight just 6.9Kg View DMO200 rail-related application in more detail.	Testing of various relays and protection systems as well as the smaller circuit breaker testing. 0-200A main output current True RMS metering with 1 cycle capture Aux metering channel 2nd Aux output channel 0-10A or 0-2060V AC with phase shift 3rd Aux DC channel 12-220V Current limit mode on main channel for fine control Data storage via USB as well as data input via USB keyboard Auto mains voltage selection Click to view the 200ADM-P rail-related application in more detail.
PT30-10 High Voltage DC Cable Test Systems	Kv30-40D and Kv5-100 High Voltage AC Test System
Comes complete with discharge probe	Test insulation systems & the measurement of breakdown voltage
Rail Application	Rail Application
The PT 30-10 is a 30KV DC Pressure Test Set used in the commissioning of cables being widely used by the rail specialist commissioning engineers installing cables. +/- 30 Kv DC 10mA output current available Metering of both V and I for + and – output Auto mains selection Zero V interlock View PT30-10 rail-related application in more detail.	These AC Flash Test Sets are used initially in the commissioning of substations and plant as AC pressure testing equipment before becoming utilised in ongoing maintenance schedules. The unit is a 30kV AC voltage source, offering up to 40mA making it ideally suited to perform pressure tests on both fixed plant and control panels. Auto mains selection Key operated supply switch – prevents unauthorised use Dual overload protection Zero-Volt interlock External 24VDC interlock circuit Visual indication of test piece failure
Z-OVR Cable Impedance Test System	750ADM & PCU1-SP Primary Current Injection System
3 voltage outputs & measures long line distances	Designed for testing devices used for power system protection
Rail Application	Rail Application
This unit is being used on rail catenary to ascertain the condition of the catenary using impedance measurement, over time the condition of the catenary will deteriorate and as that happens the impedance will rise.	750ADM and the PCU1-SP are both Primary Injection Test sets, these are being used to determine that the CB and associated equipment will trip upon current fault conditions by injection of trip level current upon the protection system ensuring it operates as it should providing the protection as required.
TPT9000 Transformer Polarity Tester	HVD03/2D High Voltage Detector
Fast polarity testing of both voltage and current transformers	Determines if the catenary 25kV circuit is live or dead
Rail Application	Rail Application
The TPT9000 is a small easy to use CT and VT polarity test set being used by commissioning engineers upon the railways.	A dedicated 25kV Overhead Line (Catenary) Tester used to determine if the catenary 25kV circuit is live or dead. The set comes with a proving unit. The HVD03/2D is NR approved but must be used in line with the work instructions for that product.
Live Line Indicator	Live Line Tester Kits
Determine if an item under test is live or not	Dead testing / phasing / voltage level confirmation
Rail Application	Rail Application
The LLI can be supplied as the 750, 1500 and 3000V Dc versions, all of which ae approved for use upon the Network Rail systems. The unit is designed to be  touch live unit and determines if the item under test is live or not.	The Live Line Tester is a full kit, there are different versions 3.3, 6.6, 11 and 33KV versions. The kit can be used for Dead testing, Phasing as well as voltage level confirmation.

DMO200/600 High Current Micro-Ohmmeter Rail Application

These High Current Low Ohmmeters are used in the test and measurement of any current carrying conductor where low resistance needs to be assured - this includes the following applications: Cable Terminations, Hook Link Switches and Circuit Breaker Heads.  The DMO200 will supply 200A at 5V DC.  DMO200 has been used to measure the connection of the Track Hook Switches ensuing they have a good connection.  If the connection is NOT good, then there will be excess resistance and as a result will overheat; so it is imperative that the resistance is a low value and that’s where the DMO200 has proved to be invaluable.

The unit is attached across the Hook Switch Joint with the current initiated at a low Amp setting before slowly ramping up using the control knob.  This allows the engineer to see at what value it becomes stable.  This information together with the obtained resistance values allows for greater analysis (than just obtaining absolute resistance values).

The ability of slowly ramping up the current setting is a unique feature of the DMO200 (not included on other Low Ohm Meters).

The unit has the ability to output direct current the engineers to check trip settings on DC Current Breakers.  This aspect has recently been utilised by Network Rail engineers in the South East with the unit proving itself a trusted tester in an application where the electrification of the 3^_rd rail is 750V DC.

200ADM-P Secondary Current Injection Test Set Rail Application

The 200ADM-P is a Secondary Injection Test Set with added features...

In addition to the main output (200A @ 10V AC) it has a second auxiliary channel (0-260V AC OR 0-10A AC), this means in addition to performing tests on current relays, the unit can also test relays where a second source of AC current or voltage is needed, such as current differential or directional relays.

In recent years the rail network's electrical systems have been going through an upgrade and as a result more sophisticated relays are being utilised. A tester now needs to offer more than just current; whilst there are digital relay testers available, they offer limited power per channel (typically 30-50VA). These are designed for the modern digital relay and do not cater for older mechanical-operated relays... as these require extra power. The 200ADM-P is designed to output 2000VA from the main channel!

This unit has proven itself as an allrounder, able to test both single-phase digital and older electromechanical relays making it perfect for railway electrical engineering.

PT30-10 High Voltage DC Cable Test Systems Rail Application

The PT30-10 is a 30KV DC Pressure Test Set used in the commissioning of cables; this unit is being widely utilised by rail-specialist, commissioning engineers who install cables. Upon cable installation cables need to be tested to ensure they have not suffered damaged during transit or installation. The unit is a DC test set offering 0 to ±30KV permitting two-core testing to either ground or to another core simultaneously. This allows for a more efficient commissioning process.

Train photo by Jonas Tebbe on Unsplash