KERI High Power & High Voltage Laboratories

call-answer +82 55 280 2401 Visit website

12, Bulmosan-ro 10beon-gil, Seongsan-gu
Changwon-si, Gyeongsangnam-do, 51543
South Korea

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Overview

Location: 12, Bulmosan-ro 10beon-gil, Seongsang-gu, Changwon-si, Gyeongsang-nam-do, 51543, SOUTH KOREA
Branch office (Ansan): 111, Hanggaul-ro, Sangnok-gu, Ansan-si, Gyeonggi-do, 15588, SOUTH KOREA
High Power & High Voltage Laboratories, Changwon:
E-mail: hpl@keri.re.kr Tel: 82-(0)55-280-2401 Fax: 82-(0)55-280-1512
Medium Power Apparatus Laboratories, Ansan:
E-mail: dtl@keri.re.kr Tel: 82-(0)31-8040-4405 Fax: 82-(0)31-8040-4499
Product Certification Service, Changwon:
E-mail: cert@keri.re.kr Tel: 82-(0)55-280-2503 Fax: 82-(0)55-280-1167
Key Contact Personnel:
Yong-Han Lee, Exec. Dir.(Changwon) yhlee@keri.re.kr
Yong-Jun Lee, Exec. Dir.(Ansan) yjlee@keri.re.kr
Yoon-Tak Suh, Director, Testing Management(Changwon) hpl@keri.re.kr
Sang-pil Ahn, Director, Testing Management(Ansan) dtl@keri.re.kr
Min-Kyu Kim, Director, Product Certification Service cert@keri.re.kr
Year Founded: HV Lab: 1976 HP Lab: 1976
Total Number of Employees: (All Divisions) 600
Major Export Markets Served (2017): Worldwide (Asia, India, Middle East)


 

High Voltage Laboratory

Number of Employees in High Voltage Laboratory: 41
Dimension of Main Test Hall: 55 m length x 33 m width x 26.7 m height
Dimension of Secondary Test Hall: 36 m length x 21 m width x 10 m height
Dielectric Testing Facilities:

Max. Volt Standard
Impulse Testing:
Lightning Impulse 1st: 4200 kV (420 kJ) IEC, ANSI
2nd: 800 kV (80 kJ) IEC, ANSI
Switching Impulse (Dry) 2400 (+) / 2400 (-) kV IEC, ANSI
Switching Impulse (Wet) 2400 (+) / 2400 (-) kV IEC, ANSI
Impulse Current 100 kV / 250 kJ, 4/10 μs 150 kA IEC, ANSI
8/20 μs 60 kA, 1/20 μs 30 kA
A.C. Testing:  10/350 µs,60 kA
Dry / Wet 1st: 1500 kV / 2 A   IEC, ANSI
2nd: 1100 kV / 3 A
3rd: 600 kV / 1 A
4th 300 kV / 1A
Partial Discharge  1st: 1100 kV / 2 A
& RIV Testing: 2nd: 50 kV / 0.2 A IEC, ANSI
M-G 37 kW / 600 V
Capacitance  1st: 800 kV IEC, ANSI
& Tan ∂ Testing: 2nd: 100 kV
D.C. Testing:
Dry 1st  1000kV / 100mA

2nd  400kV / 10mA

IEC, ANSI

Pollution Testing:
Dimension of Main Test Chamber: 15 m length x 13 m width x 12 m height

Max. A.C. Voltage Current Standard
Salt Fog & Steam Fog 600 kV 3 A IEC

Ageing Tests: High voltage ageing test. High frequency & high voltage test for power cables. Ageing chambers with temperature and humidity control, UV radiation, electric field, wet and salt fog for polymer insulators, arresters.

High temperature thermal shocking chamber: Chamber internal dimension 1.5 m (D) x 1.5 m (H), 3 compartment,
High temp.: 350°C Max. within 3°C tolerance
High and low temperature chamber:
• 1st Internal Size 5 m(D) x 2.4 m(W) x 3 m(H). -50 °C ~ +120°C, 25% ~ 98% Rh.
• 2nd Internal Size 4 m(D) x 2.4 m(W) x 2.8 m(H), -50 °C ~ +150°C, 30% ~ 95% Rh.
• 3rd Internal Size 1.4 m(D) x 0.9m(W) x 1.5 m(H), -40°C ~ +220°C, thermal shock within 5 minutes.
Other Tests Performed on Insulators, Arresters, Bushings,Cable Terminations: 
Material test (water immersion, thermal shock), Mechanical load test, Steep front impulse test, Visual corona, Puncture test, Impulse current test
Hot & cold water immersion bath:
Hot (100°C), Cold (4°C) 1.5 m(D) x 3 m(W) x 1.2 m(H)
Mechanical test equipment: 50 ton tensile and compression strength.
Other Testing Facilities: 
• Electric Motor: 3P 600V 265 kW
• PV Inverter: 3P 520V 350 kW
• Surge Arrester: 4 x 10 μs 200 kA, 8 x 20 μs 60 kA
• IEC 61850 Conformance Test
• DC Circuit Breaker Test: 800V 70kA
Transformer Testing   

Max. SystemVoltage Max.Power Frequency Standard
From To
Single Phase 3 unit 6.6 kV 500 kVA 50 60 IEC, ANSI

 

HV Cable Testing

Max. Volt./Current Standard
Load Cycling 600 kV, 4000 A IEC, ANSI
AC/DC Voltage 600 kV, 4000A IEC, ANSI
Lightning Impulse 1st: 4200 kV (420 kJ) IEC, ANSI
2nd: 600 kV (45 kJ)
Switching Impulse 2400(+) / 2400(-) kV IEC, ANSI
Capacitance & Tan ∂ : 1st: 800 kV (C=50 pF) IEC, ANSI
2nd: 100 kV (C=100 pF) IEC, ANSI
Test Loop (m) 1st: 5000 A, 2 lines
2nd: 3000 A, 5 lines
3rd: 2000 A, 10 lines

High Power Laboratory

Number of Employees in High Power Laboratory: 42
Kind of Power Source for the HP Laboratory: Short-circuit generator
Specifications of Main Test Bay: 
Possible Power Frequency: 50 Hz or 60 Hz
Max. MVA: 1st  8000 MVA  2nd  500 MVA
Max. kV: 1st  360 kV, 2nd  15.5 kV
Max. kA & Duration: 110 kA, 10 cycles
Synthetic Installation: 
Capacitor Bank: Total 7.2 MJ,
• Main capacitor bank : 1.0 MJ x 4 units
• Tuning capacitor bank: 0.8 MJ x 4 units
• D.C. charger : 500 kV x 4 units
Artificial Line for SLF: 550 kV / 80 kA
Arc extension circuit: 150 kV / 5 kAp x 7 units
Synthetic making testing facilities: 355 kV / 63 kA
Max. kV in Test Bay from Synthetic Installation: 1100 kV / 80 kA (single-phase, Half-pole), 245 kV / 63 kA (three-phase)
Electrical Tests: 
Medium Voltage : Short-circuit making and breaking tests, mainly active load switching tests, Capacitive/Inductive current switching tests for circuit breakers, switches, disconnections, switchgears, switch and fuse combination, Breaking tests for fuses, Short-circuit tests for power transformers, reactors, instrument transformers, Power arc tests and internal fault current tests for arrestors, Metal enclosed switchgear
High Voltage : Short-circuit making and breaking tests, Capacitive/inductive current switching tests, Short line fault tests, Out of phase tests for circuit breakers, GIS, Short-circuit withstand tests for power transformers, reactors, instrument transformers
Heat Run Tests: Temperature rise tests with continuous current up to 10,000 A (three-phase)
Other Types of High Power Tests Offered:
• 1st Short-time and peak withstand current tests with 250 V / 180 kA (single-phase), 250 V / 102 kA (three-phase)
• 2nd Short-time and peak withstand current tests with 500 V / 180 kA (single-phase), 500 V / 102 kA (three-phase)
High Current Test Facilities & Capabilities: 
Short-Circuit Generator: 
• 1st:  18kV 8000MVA 50/60Hz (4000MVA x 1, 2000MVA x 2)
• 2nd: 12.5 kV, 50/60 Hz, 500 MVA (@ 3 cycle)
Short-Circuit Transformer: 
• 1st: 1000 MVA – 3 units
• 2nd: 1200MVA – 3 units


Other Test Capabilities

Test Line: Isolated Phase Bus, Aluminum/Copper Bus
Measurement Capabilities: Reference measurement systems for LI as IEC with traceability to NMI(National Measurement Institute)
Number of Employees in Other Facilities: 43