Megger TM1800 Expert With DualGround Timing

The robust design of the Megger TM1800 contains powerful technology that streamlines circuit breaker testing. Sophisticated measurement modules enable great time savings as many parameters can be measured simultaneously, eliminating the need for new setup each time.

The modularised design makes it very flexible to user needs and enables reconfiguration for new demands and upgrade with new functionality. You can configure TM1800 to a complete test set tailor made for your specific needs. The software, CABA Local, guides you to efficient circuit breaker testing. All inputs and outputs on the TM1800 and the modules are designed to withstand the harsh environment in high-voltage substations and industrial environments.

The patented DualGround™ testing using the DCM module makes the testing safe and time saving by keeping the circuit breaker grounded on both sides throughout the test. The DCM module uses a measuring technology called Dynamic Capacitive Measurement. Timing M/R is using the patented Active Interference Suppression to obtain correct timing and accurate PIR (Pre-Insertion Resistor) values in high voltage substations.

An adaptive, easy-to-use software suite supports activities from timing, simply turning a knob without the need for presetting, to advanced help functions for hooking up to the test object. A full keyboard and 8” colour screen is the front end of the high-level user interface. The Select-Connect-Inspect workflow guides you to fast results in three steps. Testing is made easier to learn and perform.

With built-in protection circuits and software-designed protection the TM1800 has a good guard to influences and even failures caused by over-voltages generated in the environment.

FEATURES

Stand-alone functionality – one toolbox for all breaker testing.
Eight user configurable slots for modules.
Temperature sensor connection.
Trig inputs and outputs.
Outputs for warning signal and DRM.
Earth (Ground) connection.
Communication interfaces (USB, Ethernet, etc).
Rugged and reliable for field use.

SELECT – CONNECT – INSPECT

Working with TM1800 means fast and easy testing. Testing is done with a three-step process:

First step is to select a suitable template from the template library depending on number of contacts per phase, motion or not, resistor contacts and more.

Second step is to connect the test leads according to the graphical help screen.

Third step is to turn the “Measure” knob. The measurement is performed, analyzed and the results will be displayed on the screen. Magnification and compare functions are available.

CONTROL MODULE

Generates the selected circuit breaker operation sequences accurate and bounce-less. The Control module, with 9 analog channels (3 U + 6 I), also measures important parameters during the test. Coil current, control voltage, coil resistance and auxiliary contact timing are automatically measured for each phase without any additional test lead connections. Includes: 1 cable set, 5 m (16 ft).

Three independent contact functions per module.
Pre-programmed sequences C, O, C–O, O–C, O–C–O.
Timing of a and b auxiliary contacts.
Coil current, voltage and resistance.

TIMING M/R MODULE

The Timing M/R module uses one hook-up for testing all the important timing parameters of a contact without the need of reconnection or special set-ups. One timing M/R module, with 12 analog channels (6 U + 6 I), will time up to six main plus six PIR contacts and measure values of the Pre-Insertion Resistors. With the same hook-up Timing M/R can also perform static and dynamic resistance measurements (using SDRM202). The Timing M/R module is using patented Active Interference Suppression to obtain correct timing and accurate PIR values
regardless of interference in high voltage substations. Includes: 3 cable sets, 5 m (16 ft) total length, adjustable spread.

Six inputs per module.
High resolution 15 μV and up to 40 kHz sampling.
Main and parallel resistor contact timing.
Resistance value of parallel resistors.

DCM MODULE

The DCM module enables DualGround testing. This increases safety and also makes testing easier. Each pair of a Timing M/R and DCM module provides up to six channels. Each channel requires a special DCM cable with integrated electronics. The TM1800 system can be equipped with multiple DCM and Timing M/R module pairs that enable timing measurement on up to 18 contacts. Includes: DCM-cables, 12 m (39 ft).

Six channels per module.
Timing test using DualGround.
Safe, fast and easy testing.
Two breaks per phase.
GIS breaker testing.

ANALOG MODULE

The Analog module measures any analog entity from a transducer mounted on a circuit breaker. It enables measurements of motion, speed, current, voltage, pressure, vibration etc. A motion measurement of a circuit breaker is simple thanks to the flexible and easy to use interface. Universal transducers, specialized transducers and conversion tables are available for numerous circuit breakers. Includes: 3 cable sets, 10 m (33 ft).

Three channels per module.
Supports industrial analog transducers.
Insulated channels, measure up to 250 V whithout volt. div.
High resolution 0.3 mV, sampling rate 40 kHz.

TIMING AUX MODULE

Expands the TM1800 system with timing inputs for measuring any auxiliary contact on the circuit breaker. It measures timing, polarity insensitive, of both dry and wet contacts for example timing of spring charging motor, anti-pump relay etc. Includes: 3 cable sets, 5 m (16 ft).

Six channels per module.
Polarity insensitive.
Dry and wet auxiliary contacts.

Megger TM1800 General Specifications:

• Mains input (nominal): 100–240 V AC, 50/60 Hz.
• Power consumption: 250 VA (max).
• Display: Super-Bright for good visibility in direct sunlight.
• Diagonal size: 21 cm (8”).
• Keyboard: Built-in.
• Control module: No. of channels 3.
• Max. sample rate: 10 kHz.
• Weight: 1.0 kg (2.2 lbs).
• Operating temperature: -20°C to +50°C (-4°F to +122°F).
• CE-marking: EMC 2004/108/EC, LVD 2006/95/EC.
• Dimensions: 515 x 173 x 452 mm (20.3” x 6.8” x 17.8”).
• Weight (basic unit): 11.5 kg (25.4 lbs).
• TM1800 warranty: 12 months.

Includes: CG-19090 TM1800  Basic Unit, CG -19030 TM1800 Control Module (2), CG-19080 TM1800 Timing M/R Module (2), CG-19192 TM1800 DCM Module (2), CG-19000 TM1800 Analog Module, CG-19060 TM1800 Timing AUX Module, CG-8000X CABA Win - TM1800.