1155 Tagami, Futaebori
Komaki, 485-8566
Japan
Overview
Key Contact Personnel:
Kuniaki Kondo, Manager kondok@ngk.co.jp
Year Founded
HV Lab: 1963
HP Lab:1963
Total Number of Employees (All Divisions): 15
Major Export Markets Served: Far East, South East Asia, Middle East, USA, Canada
Services
High Voltage Laboratory:
Number of Employees in High Voltage Laboratory: 15
Dimensions of Main Test Hall: 40 m length x 40 m width x 30 m height
Dimensions of Secondary Test Hall: 30 m length x 25 m width x 30 m height
Dielectric Testing Facilities
| Lightning Impulse | Max. Volt./Current | Standard/Remarks |
| Lightning Impulse: | 3200 kV | IEC 60060 |
| Switching Imp. (Dry/Wet) | 2300 kV | IEC 60060 |
| Current Impulse (8×20 μs) | 80 kA | IEC 62475 |
| A. C. Testing: | ||
| Dry | 1500 kV | IEC 60060/60168/60383 |
| Wet | 1500 kV | IEC 60060/60168/60383 |
| D. C. Testing: | ||
| Dry | 500 kV, 30 mA | |
| Wet | 500 kV, 30 mA | |
| Other Testing: | ||
| Partial Discharge& RIV Testing: | 1000 kV AC & 800kV DC | NEMA, CISPR |
| Capacitance &Tan ∂ Testing: | 800 kV AC | IEC 60137 |
Pollution Testing:
| Items | Standards | Max. A.C. Voltage | Max D.C. Voltage | Temp. °C |
| Salt Fog | IEC 60507/61245 | 1000 kV | 750 kV | Room Temp. |
| Solid Layer | IEC 60507/61245 | 1000 kV | 750 kV | Room Temp. |
Ageing Test:
• Tracking & erosion test based on IEC 62217 and ANSI C29.11
• Tracking wheel test based on CSAC411.4
• Ion migration test based on IEC 61325
High Power Laboratory:
Number of Employees in High Voltage and High Power Laboratories: 15
Dimensions of Main Test Bay: 15 m length x 10 m width x 13 m height
Possible Power Frequency:
Max Apparent Power: 125 MVA
Max. Voltage: 6.9kV
Max. Current x Duration: 12 kA x 1.0 sec.
Other Test Capabilities:
Mechanical Tests (Tensile, Compression, Torsional Tests): 2500 kN Amsler testing machine
Environmental Tests: Accelerated environmental testing room
Additional Special Facilities:
Environment test chamber: -40 ~+ 90 ℃
Other Test Performed on Insulators, Arresters, Bushings:
NGK HV Lab. has been accredited as conforming to ISO/IEC 17025, whose scope of accreditation in AC, DC and Impulse high voltage tests.
