LOW CURRENT INJECTOR

Injects an off grid frequency constant current into the earth grid

TUNED VOLTMETER

Specifically designed for use with our LCI to detect the voltages arising from the injected current

EARTH TESTER

A versatile 4-terminal earth tester suitable for the measurement of a variety of resistances

TOWER TESTER

4-terminal test meter designed to measure the earth resistance of steel transmission towers or steel poles that are interconnected with an overhead lightning shield wire

SWER TESTER

Designed to measure the earth electrode resistance of Single Wire Earth Return Systems

CHEMICAL FLOW METER

A timer which measures the time taken for an impurity to travel down a pipe.

ARC DETECTION

Highly directional microphones allow accurate ultrasonic detection of insulation component faults.

LCI2000C LOW-CURRENT INJECTOR

Easy to use, easy to service. Designed for harsh conditions.

The LCI2000C injects a constant current into the earth grid. The test frequency is variable from 45 Hz to 65 Hz, in 1 Hz steps. This provides a unique test condition and the chosen signal can be easily identified when combined with the TVM1100 Tuned Voltmeter. The earth grid characteristics including impedance, touch, transferred, step voltages and current splits can be determined.

Auto shut-off is a safety feature that ensures the injected current ceases should the injection circuit be interrupted.

The LCI2000C output is galvanically isolated from the input supply. All functions can be controlled via an integrated front panel.

See the LCI2000C featured in T&D World

  • Input voltage range 100 Vac – 250 Vac
  • Output current 0.5 – 10A
  • Load Loop Impedance: 4 Ω – 150 Ω
  • Output voltage up to 180 Vac
  • Output Power: 1800 VA max
  • Output frequency 45 – 65 Hz
  • Dual overload protection
  • Fan cooled with replaceable filters
  • GPS sync for accurate phase measurements
LCI2000C Low Current Injector

TVM1100 TUNED VOLTMETER

The TVM1100 is specifically designed for use with the LCI2000C injection unit to detect the voltages arising from the injected current. Due to its excellent noise rejection very low levels of test voltage may be identified, even where the background noise levels is high. Such noise may result from residual voltage on the earth grid, electric field coupling or induction in test cables.

The TVM1100 has a high input impedance to ensure accurate reading of prospective touch, step and transferred voltages. It also has a switchable low input impedance (1 kΩ) to simulate a person’s body impedance.The TVM1100 includes a second voltage input such as a flexible or clamp CT to enable current splits and associated phase angles to be measured.The TVM1100 includes GPS tracking and data logging. The GPS facility is ideal for the earth potential rise traverse while the data logging enables any readings to be recorded.

  • Channel 1: 0 – 6.000 V; 0 – 60.00 V; 0 – 300.0 V
  • Channel 2: 0 – 3 V
  • Phase angle: ± 180° (TVM 1100)
  • Accuracy: ± 0.1 % FSD filter ON; ±0.15 % filter OFF ± 2 counts
  • Frequency: 45 Hz – 65 Hz ± 1 Hz (in 1 Hz steps)
  • Input impedance: 2 MΩ /1 kΩ
  • Noise rejection: > 70 dB (> 3,000:1) @ 50 Hz/60 Hz
  • Display: Color LCD
  • Integrated Li-Ion Battery
  • Integrated SD card memory
  • GPS logging
  • Ergonomic handheld design
LCI2000C Low Current Injector

ET1000 EARTH TESTER / MICRO-OHMMETER

The ET1000 is a versatile 4-terminal earth tester suitable for the measurement of soil resistivity, earth electrode or grid resistance, conductor/joint resistance and primary plant bonding resistance.

The ET1000 is especially suited to soil resistivity measurements due to its multi-function, high resolution and high voltage output feature (which is used to overcome high current electrode contact resistance).

  • Range: 0.0 µΩ - 999.0 µΩ; 1.0 mΩ - 9.999 mΩ; 10.0 mΩ - 9.999 kΩ; 100 mΩ - 9.999 Ω; 10 Ω - 99.99 Ω; 100 Ω - 220 Ω; up to 20 kΩ in soil resistance with high C probe impedance
  • Input impedance: 2 MΩ/220 kΩ
  • Output current: 65 mA/10 mA at 48 Vp/400 Vp
  • Battery life approx 12 hrs
  • Test mode reversing DC
  • Easy portability for any environment
LCI2000C Low Current Injector

TT1000 TOWER RESISTANCE TESTER

The TT1000 is a 4-terminal test meter designed to measure the earth resistance of steel transmission towers or steel poles that are interconnected with an overhead lightning shield wire. It is important to measure tower earth resistance in order to design and determine the lightning protection performance of the power system. The TT1000 operates at a high frequency which results in the overhead earth wire appearing as a high impedance. This means the influence of parallel towers or poles is reduced.

  • Range: 0 - 15 Ω / 0 – 200 Ω
  • Resolution: 0.5 Ω, with 2% FSD accuracy
  • Input impedance: 1 MΩ
  • Output current: 38.2mA RMS
  • Output voltage: 28.9 V RMS max
  • Test frequency: 40-80kHz (Auto Scan)
  • Shielded cable drive connection
  • Display Reflective graphical monochrome LCD
  • Integrated Li-Ion battery, up to 16 hours use per charge
  • Easy Portability
LCI2000C Low Current Injector

ST1000 SWER

Single Wire Earth Return Systems tester.

The ST1000 is designed to measure the earth electrode resistance of Single Wire Earth Return Systems. It uses the SWER transformer (isolation or distribution) load currents to provide the measurement signals and accepts two CT inputs and one voltage input.

  • Range: 10 mΩ - 1,999 Ω
  • High resolution as little as 1 mΩ
  • Less than +/-0.5% ± 2 digits error for high accuracy
  • Input impedance on voltage channel: 2 MΩ
  • Input voltage ranges 5VRMS, 50VRMS and 300VRMS
  • Current inputs voltage range 3VRMS max
  • Selectable operating frequency
  • Reflective monochrome graphical LCD
  • Integrated SLA battery
  • Easy Portability
ST1000 SWER tester

SF1000 SaltFlo CHEMICAL FLOW RATE METER

The SF1000 is a timer which measures the time taken for an impurity to travel down a pipe. By adding an impurity such as a salt to non conductive chemical such as milk and water based solutions, the flow rates of chemical processes in industrial plants can be accurately measured. The system works with the aid of two stainless steel probes, the SF1000 measures when the impurity passes by which triggers the integrated timer to start then once the solution passes the second probe located further down the pipe the timer stops. By dividing the length of the pipe by the travel time the average velocity of the solution traveling through the pipe can be calculated.

The SF1000 is designed to operate with a wide range of trigger resistances, meaning that a variety of different base chemical and impurity additive combinations are possible.

  • Measurement range 0.000 to 999.999 sec with 1ms resolution
  • Display of live conductivity reading enables easy setup of trigger point value
  • Adjustable trigger point value enables wide range of salt concentrations to be used
  • Logging memory stores previous 50 test results
  • Handheld for easy portability
  • Battery powered (4xAAA)
  • Auto and manual trigger tracking mode, auto trigger tracking removes mistrigger arising from very slow changes in chemical conductivity
  • 2x16 character easy to read LCD
  • Solid 104mm long 9.5mm diameter stainless steel test probes provide long life
SF1000 SaltFlo Chemical Flow Rate Meter

ULTRAHOUND DISCHARGE AND CORONA DETECTOR

The Ultrahound is a highly directional and sensitive partial discharge, arcing and corona detector. Electric discharges in air emit broad spectrurm noise and using ultrasonic techniques the source of any discharge can be traced.

Electric discharging of outdoor power line components can cause radio and TV frequency interference or indicate possible future failure of equipment. The Ultrahound dish can be used from up to 30 m from the noise source. A separate short range direction wand is used for close inspection.


The Ultrahound may be used for a variety of situations, including:

  • • Power line discharge such as cracked insulators or bushings, faulty cable termination or damaged line hardware.
  • • Corona due to damaged substation or conductor hardware.
  • • Partial discharge of equipment under HV test (laboratory or in the field).
  • Frequency Response: 37 - 43 kHz, with excellent out of band rejection
  • Highly directional dish enables accurate pin pointing of faults
  • Multi function display
  • Easy portability
  • Output Power: 1800 VA max
  • Easy to read LCD
  • Battery Powered
  • Easy to self test improves user confidence
Ultrahound Discharge and Corona Detector

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CONTACT US

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+64 21 865 871

Sales and Support

Sales and Support

Christchurch, New Zealand

382 Montreal Street