High Voltage Reference Laboratory

Overview

NRI High Voltage Laboratory was established to perform high voltage tests according to international and national standards on various high voltage equipment and to develop technical supports for manufacturers and electrical equipment industries and also research activities on power systems in 1996.

At present, NRI HV Lab is one of the important HV Labs in Iran, which has an experienced technical team and expertized engineers to present any kind of laboratory and consultation services to the manufacturers, consumers, and utilities in the Middle East.

Mission

Due to the necessity of quality control and assurance in the field of high voltage equipment, which has a high growing of utilization in the networks of distribution and transmission both for locally manufactured and imported component, the tests are performed on the manufactured equipment to ensure the compatibility of their not only nominal specification with standards but also determining the damage thresholds both for electrical and nonelectrical stresses.

Combining leading technical and operational expertise, risk methodology, and in-depth industry knowledge, QT Lab empowers its customer’s decisions and actions with trust and confidence.

The Lab focuses specifically on the following areas:

Implementation of sample, type and design tests of all kinds of high voltage equipment.
Implementation of corona test on high voltage insulators and fittings.
Implementation of routine and type tests on Distribution transformers.
Technical consultant for troubleshooting of the failed HV insulators or systems.

Services

No	TEST OBJECTS	TEST DESCRIPTION	STANDARD
1	Ceramic and glass insulators	Insulation, Thermo-mechanical, Electro-mechanical and … tests.	IEC 60383-1
2	Composite insulators (both tension & suspension)	Insulation, Mechanical, Material analysis tests	IEC 61109
3	Composite line post insulators	Insulation, Mechanical, Material analysis tests	IEC 61952
4	MV switchgear	Insulation, current carrying tests	IEC 62271-200
5	LV switchgear	Insulation, current carrying tests	IEC 61439
6	Circuit breakers	Insulation, current carrying tests	IEC 62271-100
7	Disconnectors	Insulation, current carrying tests	IEC 62271-102
8	PT (voltage transformers)	Insulation tests	IEC 61869-3
9	Prefabricated substation	Insulation tests	IEC 62271-202
10	Vehicle mounted elevating and rotating aerial devices	Insulation tests	ANSI A92.2
11	Solid insulation samples	Insulation tests	IEC60243-1 IEC60250 IEC60093
12	high voltage insulators and fittings	RIV and corona tests	IEC 61284
13	Distribution transformers	routine and type tests	IEC60076
14	All of the other HV equipment	Insulation tests	RELATED DOCS

Equipment

No	DESCRIPTION	SPECIFICATION	MODEL
1	Jumo logoscreen nt	TEMPERATURE LOGGER WITH RELATED SENSORES	JUMO 70658
2	IMPULSE GENERATOR	400kV – 20kJ	SGEK-400/20
3	IMPULSE GENERATOR	1800kV-180kJ	1800kV/180kJ
4	ELECTRO MECHANICAL TEST SYSTEM	100kV/500kN
5	MEASURING BRIDGE	DISSIPATION FACTOR MEAS.	2809A
6	POWER FREQUENCY TRANSFORMER	800kV – 800kVA	800
7	POWER FREQUENCY TRANSFORMER	200kV – 50kVA	454021
8	PARTIAL DISCHARGE METER	PD MEAS.	LDIC
9	MEGA OHMETER	UP TO 4 T OHM	CA6543
10	OVEN	UP TO 400 O C	7983048
11	ARTIFITIAL RAIN GENERATOR/SIMULATOR	-	-
12	CABLE TEST SYSTEM	UP TO 63kV	KEV75
13	SEMI-AUTOMATIC DIELECTRIC TEST SET	UP TO 90kV	DTS90
14	AUTO TRANSFORMER	3 phase 400 V – 400 A
15	HIGH CURRENT TRANSFORMER	3 phase 10kA 10V
16	TURN RATIO METER	TRANSFORMER WINDINGS	TR-MarkIII
17	WINDING RESISTANCE METER	TRANSFORMER WINDINGS	WR50-12
18	ELECTRO MECHANICAL TEST	100KV 500kN	----
19	THERMO MECHANICAL TEST	(-45°C +100°C) - 250kN	----

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