China National Quality Supervision and Testing Center for Smart Grid Transmission and Distribution Equipment

Overview:

    China National Quality Supervision and Testing Center for Smart Grid Transmission and Distribution Equipment, with total investment of 330million RMB, covers an area of 60 Mu, has building area of 34500 square meters. With a 3500MVA impact generator and three 110kV substations, its Short-circuit test ability reaches up to 12kV/65kAand 450V/280kA, 0.2s. It’s the first testing and research base of high, medium and low voltage electrical apparatus in South China and Southeast Asia.

    The national center is a registered laboratory of LOVAG (Low voltage agreement group). It can issue the test report with LOVAG mark in accordance with the relevant LOVAG program, which helps the customer to enter global market conveniently.

Qualification:

   The national center is a high, medium and low-voltage electrical laboratory recognized by the CNAS. It’s an international electrotechnical commission IECEE CB-laboratory, and it’s also a "CCC" certification testing laboratory authorized by the Certification and Accreditation Administration of the People’s Republic of China (CNCA). It also undertakes the testing work for Guangdong Quality Supervision and Testing Station for High-voltage Transmission and Distribution Equipment, and Guangdong Quality Supervision and Testing Station for Transformer. Testing capability of the national center is accredited by Holland KEMA, Britain ASTA, Germany DEKRA, U.S.UL, State Grid, China Southern Power Grid, China Nuclear Power, China Classification Society, and China Railway Certification Center. According to the customer’s needs, products tested by the national center can be issued CCC, CTC, CQC, energy conservation, PCCC certification test report and CB, CE certificate, and foreign Netherlands KEMA, Britain ASTA, Germany VDE, U.S. UL , Indonesia SNI , Korea KTC certification test reports. The clients will benefit from “one test global all-purpose”.

Business Scope:

A. Power transformers and instrument transformers with rated voltage 220kV and under.

B. High-voltage switchgear, circuit breaker, disconnectors etc. with rated voltage 35kV and under.

C. Low-voltage switchgear and controlgear assemblies.(includes power distribution cabinets, busways, distribution boards, cable distribution cabinets).

D. Switchgear and controlgear.(includes low-voltage circuit-breakers, low-voltage switches, disconnectors, switch-disconnectors and fuse-combination units, contactors, starters, relays, control circuit devices and switching elements, terminals and etc), cable bridge.  

E. Installation Protective Equipment (includes RCCB, RCBO, PRCD,MCB and etc).

F. Arrester, SPD

G.The integrated relay protection device, distribution network automated equipment.

H. Electric power capacitor,ruse.

I. Insulator, cable accessories.

J.Car charging pile ,High and low voltage variable frequency speed regulating device(2.5MVA and below)

K.Power generation set,microgrid

L.Arc fault protector (AFCI, AFDD), UPS

Business includes:

A. Undertake CCC certificate testing and CCC supervision testing.

B. Undertake product quality supervision and spot check test arranged by General Administration of Quality Supervision, Inspection and Quarantine of the People’s Republic of China (AQSIQ) and Administration of Quality and Technology Supervision of Guangdong Province.

C. Undertake voluntary certification testing arranged by CQC and other certification bodies.

D. Undertake CB, CE testing entrusted by the clients and other entrusted inspection, arbitration test，foreign certification test.

E. Undertake testing for Green and Energy-saving product certification.

F. Product receiving inspection and special inspection of the Power Grid.

G. Classification society railway certification center

Testing Capacity:

High voltage testing capacity:

A. Short circuit test:

    High-voltage:12kV,65kA;35kV,16kA

    Inner Arcing Test:12kV,40kA

    Low-voltage:450V,280kA,0.2S

    Short Circuit Test of Transformer:110kV,120000kVA

B. Short-circuit Withstand Current:450V,540kA,200kA,1s;450V,120kA,4s

C. Power Frequency: High-voltage 600kV,Lightning Impulse Voltage: 2400kV

D. Temperature-rise Test:25000A

E. Capacity Current:5kV and under back-to-back 630A

F.  Artificial Pollution Test, Condensation Test, Icing Test, Salt Spay Test, Alternate Humidity Test

G. Impulse current:150kA(4/10)、100kA(8/20)、40kA(30/80)、40kA(110、2/20)、3kA(2ms square wave)

H. Combustion test, Climatic test and Environment test of Dry-type transformer

I. Combustion test of busway

K．Equipped with high speed camera,680 thousand photos per second,it is used for analyzing arc.

 

Testing capacities of low-voltage electrical products

A. Short-circuit test capacity: 450V,280kA,726V,140kA,1256V,70kA,0.2s

B. Maximal short-circuit withstand current capacity: 450V,540kA,200kA,1s;450V,120kA,4s

C. Maximal temperature rise:20kA for three-phase A.C.,8kA for D.C.

D. Testing capacity of circuit-breaker instantaneous release:100kA

E. Phase-selection switch 10kA 150kA

F. Being able to perform flammability tests for busways

L. Direct current short-circuit capability:  DC500V,100kA、DC1000V,50kA、DC1500V/25kA