Sub Station Test Instruments

About PDIC

Power Diagnostic Instrument Company, LLC (PDIC) is headquartered in Scottsdale, Arizona, USA, and was established in 2018 by utility professionals. Our primary objective is to engineer, manufacture, and market state of the art test and diagnostic instruments specifically tailored for power utility substations. We focus on integrating the latest technology into our instruments while ensuring that they remain user-friendly for testing personnel working in the field. Our mission is to support you in maintaining a reliable power supply, improve productivity, and provide accurate diagnostics for transformers and breakers.

We specialize in developing innovative testing solutions that excel in safety, performance, reliability, and ease of use. Our commitment is to provide you with analytical tools that enable informed decision-making about your assets, ultimately enhancing uptime and safety.

Our instruments boast a user-friendly interface, with many models featuring a built-in thermal printer, color touch display, eliminating the need for a PC during substation apparatus testing. However, for added convenience, our instruments can still be connected to a PC for the storage of test results, report generation, and instrument control during testing. They are designed to be portable and rugged, making them suitable for field applications.

As part of our commitment to excellent after-sales service, we provide comprehensive training and support in analyzing test results. This ensures that our customers are equipped with the knowledge and assistance needed to maximize the benefits of our instruments. Additionally, we offer a two-year warranty on our instruments, demonstrating our confidence in their durability and performance. We strive to be a reliable partner by providing ongoing support to enhance your experience with PDIC products.

Furthermore, we have established a partnership with Power Diagnostic Service, a Taiwan-based company specializing in manufacturing state-of-the-art and comprehensive online partial discharge measurement solutions, primarily utilizing UHF sensor technology. UHF sensors enable users to identify the partial discharge accurately as it provides a very good signal to noise ratio.

PDIC is accredited to ISO 9001 and ISO 14001 standards, attesting to our commitment to quality and environmental responsibility.

Frequency Response Analyzer : PFRS-25

The PFRS-25 can diagnose the mechanical integrity of a transformer by analyzing the frequency response of the transformer. The com- parison of the transformer’s frequency response with the previously known good results can be used to diagnose the mechanical integrity of the power transformer.

  • Wide dynamic range >-150 dB
  • USB and Bluetooth communication to PC
  • Battery back up for 3 hours of operation (optional)
  • Analysis and decision support built in to the user friendly PC software
  • Light weight field portable instrument in rugged ABS plastic housing
  • Import data traces from other instrument in PFRA software supplied free with the instrument
  • No licensing requirements for the software
  • Testing templates for increase productivity
    in the filed for test personnel
  • Universal C clamps for test connections
  • Rugged housing

Micro Ohm Measurement : LRM 200

The LRM 200 is a microprocessor-based, true DC micro Ohmmeter designed to test high voltage circuit-breaker contact resistances, bushing contact joints, welding joints, etc. The LRM 200’s wide measuring range is 1 micro Ohm to 5 Ohms with 0.1 micro ohm resolution with a current range of 10 A to 200 A. LRM 200 can output current of 10-200 A continuously

  •  Selectable rise and fall time of the true
    DC current eliminates the mal-operation of connected relays to the current transformer
  • Touch Screen color display for increased
    productivity in the field
  • Internal Storage of 150 test records with up to 75 readings each, along with nameplate details, eliminating the need for a computer
  • Ability to export test results to PDF and Excel format to PC
  • Built-in 2″ thermal printer

Sub Station Test Instruments

Vacuum Circuit Breaker Analyzer : VCBA 01

The Vacuum Circuit Breaker Analyzer VCBA 01 is state-of-the-art, field portable, light weight instrument for the com-prehensive diagnostic testing of vacuum circuit breakers. The VCBA 01 can perform high voltage DC vacuum integrity tests and optionally operating time tests on the circuit breaker main contacts.

  • Comprehensive vacuum CB HV test and contact timing test in one box.
  • 10-80 kV DC in 1 kV steps with 1.5% accuracy
  • Settable leakage current 50-300 micro–A in 50 micro-A steps
  • Accurate trip & close circuit breaker main contact timing test.
  • Touch screen LCD screen for improved
  • Built-in 3″ thermal printer
  • Enhanced safety features: audible and visual high voltage presence indicators, usercontrolled safety switch
  • USB Flash drive interface for transferring test records to PC

True Three-Phase Transformer Turns Ratio Tester TR300

TR 300 is a true three-phase transformer turns ratio measurement test instrument designed to test any types of transformer. It performs turns ratio tests per the IEEE C57.12.90 standard. Internally generated test voltages with state of the art measuring circuit, measures the turns ratio of the transformer with high accuracy.

  • Selectable test voltages: 4, 40, 100 & 250 VAC (optional) 
  • TR measurement range 0.8 – 50 000.
  • Typical Measurement accuracy 0.1%
  • True three-phase voltage measurement
  • Stores up to 128 test results with up to 99 readings for each test
  • Automatic vector group detection
  • Built-in tap changer control 
  • Performs magnetic balance test.
  • Battery backup for up to 4 hours of operation (optional)
  • Built-in 3″ thermal printer
  • Displays winding polarity, excitation current and phase angle

Single-Phase Transformer Turns Ratio Tester TR100

The TR 100 is a microprocessor-based single phase automatic transformer turns ratio test instrument. This field portable lightweight unit is housed in a field rugged case. The TR 100 is designed to test the turns ratio of transformers of any size per the IEEE C57.12.90 standard.

  • Selectable test voltages: 4, 40, 100 & 250 VAC (optional)
  • TR measurement range 0.8 – 30 000.
  • Typical Measurement accuracy 0.1%
  • Stores up to 128 test results with up to
    33 readings for each test
  • Battery backup for up to 4 hours of
    operation (optional)
  • Built-in 2″ thermal printer
  • Displays winding polarity, turns
    ratio and excitation current
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