Arm Engineering Company Ltd
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    • Electromechanical Installations
    • Testing and Commissioning
    • Transformer Services
    • Power Lines Construction
    • Crane Services
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    • Turnkey Projects
    • Electromechanical Installations projects
    • Testing & Commissioning projects
    • Transformer Services projects
    • Power Systems Engineering Projects
    • Power Line Construction projects
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TESTING &
​COMMISSIONING

Relays, Transformers, Breakers, disconnectors, CTs, VTs, Motors, generators and Power lines. ​
View our projects
ARM Engineering provides comprehensive Testing & Commissioning services for Power generation, Transmission and Distribution systems up to 400kV.  With a dedicated team of qualified protection and commissioning Engineers, we execute any Electrical Project in a professional manner meeting all stringent work specification and time schedules. 

Relay Tests

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​We test and configure protection relays as per the customer settings requirements. We test:
  1. ​Line protection & control relays
  2. Transformer protection & control relays
  3. Power generator protection & Control relays
  4. Motor protection & control relays
  5. Busbar protection and control Relays
  6. Voltage protection and control relays
We have successfully tested relays from different manufacturers such as
  • ABB: 670 series, 650 series, 630 series, 615 series, 540 Series, & SPAJ Series.
  • SIEMENS: 7SA Series, 7SD Series, 7SR Series.
  • Alstom Micom Series:  P546, P441.
  •  Vamp: 210,265.
  • General electric: 489 generator protection.
  • SEL: 311L,421.
  • NARI RELAY: P902, P915, P9611.
  • Effacec: BCU 500, TPU S420, TPU S 430, TPU S220
  • Schneider Micom Series
  • XJ Electricals relays.
  • Woodward relays ..

Transformer Tests

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We offer comprehensive testing and commissioning of transformers such as.​
  • Transformer primary tests: insulation power factor, turns ratio, winding excitation, insulation resistance, winding resistance, sweep frequency analysis, leakage reactance, CT saturation and ratio and dissolved gas analysis
  • Transformer mechanical trips testing (Bucholz, Pressure relief devices and electronic thermal monitors).
  • On Load tap changer (OLTC) testing, inspection and functional checks
  • Testing and configuration of power transformer control and Protection relays (Overcurrent, earth fault, differential protection) and OLTC control relay.
  • Transformer stability tests
  • Transformer Oil sampling and testing
  • Performance of predictive maintenances: oil levels, oil sampling and analysis, temperature readings, visual inspections, Infrared thermography and ultrasound 

Other Tests

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  • High Voltage Tests (Insulation Resistance,  DC/VLF Hipot Test for HV cables and AC Hipot Test for HV Switchgear)
  • Over Head Line Tests (Insulation Resistance Test, Phase Sequence Check, Positive, Negative and Zero Sequence Impedance)
  • Earth Measurements (Grid Resistance Measurement, Step and Touch Potential, Earth Pit Resistance and Soil Resistivity Test Measurement)
  • Motor Tests (Insulation Resistance Test, Full Voltage Test, Load Test and Motor Circuit Analysis)
  • Switchgear Tests (Breaker timing, contact resistance, insulation resistance, local and remote operation)
  • Capacitor Bank Tests (Capacitance Measurement, Inductance Measurement and High Voltage Test)
  • Power Quality Tests (Measuring and Analyzing the Power Quality of Electrical Equipment and Harmonic Analysis)
  • CT/ VT Tests (Insulation Resistance, Polarity, Excitation, Winding Resistance and Ratio Test)
  • Battery System Tests (Functional Checks on Charger Panel, Load Test of Battery Charger, Charging and Discharging Test for Battery Cells)
  • SCADA Setup, Testing and Configuring

Our Equipment

​Arm Engineering is equipped with calibrated test kits to carry our all testing and commissioning works.
Universal Relay test set
Universal Relay test set
Tan-delta & capacitance tester
Circuit Breaker analyzer kit​
Battery bank Discharge test kit
BDV Dielectric oil tester
CT/PT ratio analyser kit
10KV Digital insulation tester.
Contact resistance testing kit
Secondary injection test kit​
Primary current injection test kit
Earth resistance tester
HIPOT tester
Power Logger
6,000 litres/hour oil filtration machine
9,000 litres/hour oil filtration machine
CLICK HERE FOR More details

Get in touch with us if you are interested in our products and services and would like to receive further information.


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P.O. Box 4285-0020 ​Nairobi, Kenya
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+254 740197223
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info{at}armengineering.co.ke
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1st Floor, 04 Funzi Road, ​Off Enterprise Road, Industrial Area.

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WORKING HOURS

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Monday - Friday       :  8am – 5pm
Saturday                     :  8am –1pm
Sunday                       :  Closed


  • Home
  • About us
    • Who we are
    • Testimonials
  • Services
    • Electromechanical Installations
    • Testing and Commissioning
    • Transformer Services
    • Power Lines Construction
    • Crane Services
  • Projects
    • Turnkey Projects
    • Electromechanical Installations projects
    • Testing & Commissioning projects
    • Transformer Services projects
    • Power Systems Engineering Projects
    • Power Line Construction projects
  • Contact us