DEC 5,2024

200kA 8/20μs and 50kA 10/350μs Impulse Current Generator

Here comes our impulse current test system for Indian customer, Eaton, world famous SPD manufacturer.

It can output 200kA 8/20μs and 50kA 10/350μs for the testing of SPDs, surge protectors, GDT and varistors. With additional impulse module, it can also output other waves, such as 1/1000μs, 4/10μs and 30/80μs (for MOV block and surge arrestor testing). With its automatic control and measurement system, the system perfectly fulfils the functions of HV test and accurate measurement analysis.

DEC 5,2024

Delivery of 10kVA Regulating Transformer to European Customer

HVGRAND has just delivered 12 sets 10kVA dry type regulating transformer (voltage regulator) to

a world famous HV test lab in Croatia.

NOV 27,2024

Shipment of 1.5m Corona Rings to Italian Customer

HVGRAND delivered 12 pcs corona rings (1.5m diameter) to Italian customer.

NOV 27,2024

100kV Step Up Transformer for Italian Customer

HVGRAND just delivered 100kV 10kVA AC test transformer to Italian cusotmer.

The PD is less than 2PC.

NOV 24,2024

Shipment of 100kV SF6 Standard Capacitor to Italy

HVGRAND just shipped 100kV 100pF SF6 standard capacitor to Italian customer.

NOV 16,2024

800kV 20mA HV DC generator for our Spain Customer

Our Spain customer has successfully inspected the 800kV 20mA HV DC generator duirng NOV 11-13.
(1)The polarity reversal time @ rated voltage can reach less than 90 seconds.
(2) And our ripple factor is less than 0.6% @800kV.
(3) The max PD value is less than 300PC @±800kV.

OCT 22,2024

Shipment of 50kV 2μF Impulse Capacitor to US

HVGRNAD has just delivered 6 pcs 50kV 2μF HV impulse capacitors to American customer.

The impulse capacitors are used to build the impulse voltage generator.(Marx Generator)

Sept.4,2024

Shipment of 100kV 0.1A AC Test System to Thailand

HVGRAND shipped 100kV 0.1A oil-insulated AC voltage test system （with AC test transformer）

to Thailand customer in August,2024.

Sept.4,2024

Shipment of 6 pcs 100kV 2uF Impulse Capacitor to Italian Customer

HVGRAND will ship 6pcs 100kV 2μF oil-insulated impulse capacitors to Italian customer by train.

The impulse capacitors are used to build a new impulse voltage generator.

Sept. 4,2024

Shipment of 2kV 5000uF Impulse Capacitor to France

HVGRAND will ship 30 pcs 2kV 5000uF dry impulse capacitors to French customer.

August 1,2024

Delivery of 800kV Impulse Voltage Divider to Korean Customer

HVGRAND has just delivered 800kV Impulse Voltage Divider to Korean customer.

August 19,2024

Delivery Of Impulse Resistors To Indonesian Customer

HVGRAND has delivered 10 pcs impulse resistors (350kV 500 Ohm/1000 Ohm) to Indonesian customer, HV cable manufacturer.

JULY 28,2018

Delivery of 100pcs Corona Rings

HVGrand delivered 100pcs corona rings to Hyundai industry.(Manufacturer of HV tap changers)

June 18,2024

A New Order of 800kV 20mA HV DC generator from Spain Customer

HVGRAND just received an order of 800kV 20mA HV DC generator from Spain customer-accredited HV test lab in Spain in June.We will install the generator in Feb, 2025.

July 19,2024

600kV 30kJ Impulse Voltage Generator for a famous French aerospace lab

HVGRAND has successfully installed and commissioned 600kV 30kJ impulse voltage generator for famous French aerospace lab in Paris. HVGRAND engineer has offered professional training to our customer.

The impulse generator is used to test the aircraft module A330 by SI (250/2500μs upto 390kV).

It can also output LI (1.2/50μs) upto 500kV.

SEPT 6,2022

Delivery of 400kV 20kJ impulse voltage generator for circuit breaker customer

HVGRAND has installed and commissioned 400kV 20kJ impulse voltage generator for our domestic customer.

The generator can be used to test MV products, such as surge arresters, switchgears, insulators, cables, transformers, bushings, etc.

June 6,2022

Delivery of 200kV 50kVA AC Voltage Test Transformer

HVGRAND has just delivered 200kV 50kVA AC voltage test system to our customer for the MV busbar testing.

SEPT 28,2023

Delivery of 10kVA Regulating Transformer to Croatian Customer

HVGRAND has just delivered 5 sets 10kVA dry type regulating transformer (voltage regulator) to a world famous HV test lab in Croatia.

May 26,2023

30kV 36μF Dry Type Impulse Capacitor for French customer

HVGRAND will deliver 14 pcs 30kV 36μF Dry Type Impulse Capacitor to French customer.

May 6,2022

Delivery of AC shunt capacitors to Italian customer

HVGRAND successfully delivered AC shunt capacitors (1.9kV and 1.2kV) to Italian customer. The AC shunt capacitors are used to improve the power factor of the electrical system.(50Hz or 60Hz)

June 18,2022

Delivery of impulse resistors to Mexican customer

HVGRAND just delivered 100kV impulse resistors for the impulse voltage generator to Mexican customer.

May 18,2022

Delivery of 100pcs small corona rings to Spain customer

HVGRAND just delivered 100pcs small corona rings to Spain customer, famous accredited HV test lab.

JULY 18,2022

Delivery of corona rings to Poland customer

HVGRAND just delivered corona rings to Poland customer (a transformer manufacturer).
We can do custome made corona rings accoring to the customer's drawings.

JULY 23,2022

Delivery of current monitor to Thailand customer

HVGRAND just delivered American brand Pearson current monitor to Thailand customer.

The current monitor can measure the 8/20μs upto 20kA.

April 8,2023

Delivery of 1.5meters corona ring to Koncar test lab

HVGRAND successfully manufactured 3 big corona rings (Aluminum shields) with 1.5 meters diamter to Koncar test lab in April,2023.

NOV 20,2022

Delivery of 300kV 30kJ impulse voltage generator

HVGRAND has installed and commissioned 300kV 30kJ impulse voltage generator to our domestic customer. The generator can be used to test MV products, such as surge arresters, switchgears, insulators, cables, transformers, bushings, etc.

AUG 8,2022

Delivery of 400kV 20kJ impulse voltage generator

HVGRAND has installed and commissioned 400kV 20kJ impulse voltage generator to our domestic customer. The generator can be used to test MV products, such as surge arresters, switchgears, insulators, cables, transformers, bushings, etc.

AUG 2,2022

Delivery of 300kV 1A AC Voltage Test System

HVGRAND has just delivered 300kV 1A AC voltage test system to our customer for the insulator testing.

JULY 12,2022

Delivery of 60kV 5kVA AC Voltage Test Transformer

HVGRAND has just delivered 60kV 5kVA AC voltage test system to our customer for the insulator testing.

June 20,2022

Delivery of 120kV 60kVA AC Voltage Test Transformer

HVGRAND has just delivered 120kV 60kVA AC voltage test system to our customer for the MV products testing,such as surge arrester, current transformers and circuit breakers.

DEC 12,2023

A New Order of 600kV 30kJ Impulse Voltage Generator from French customer

HVGRAND just won the bidder of 600kV 30kJ impulse voltage generator from our French customer.

HVGRAND staff will go to France for the installation and commissioning of the impulse generator in June 2024.

September 20,2023

200 kV Impulse Resistors are Ready for Shipment.

HVGRAND will deliver 200kV 60 Ohm impulse resistors (wave shaping resistors) of the impulse voltage generator to our Spain customer, a world famous HV test lab.

September 25,2023

The Charging Resistors are ready for shipment.

HVGRAND will deliver 60K Ohm charging resistors of impulse voltage generator to our Spain customer, a world famous HV test lab.

September 15,2023

2400kV LI & 1800kV SI impulse voltage divider to Spain customer

HVGRAND will deliver 2400kV LI & 1800kV SI impulse voltage divider to Spain customer, a famous worldwide HV test lab.

July 12,2023

Delivery of Trigger Unit with Delay System to Italian Customer

HVGRAND will deliver one trigger unit with delay system to Italian customer.

The trigger unit is used together with chopping gap to get the desired chopped time.

The chopped time is 1~10μs;

April 12,2021

85kV 1540kVA AC resonant test system

HVgrand has delivered 85kV 1540kVA AC resonant test system to Croatian customer in April, 2021.

AC resonant test system is used for AC voltage test of MV cables.

The partial discharge value of the whole system is less than 1 PC.

Aug 8,2023

50 Corona Rings to Bulgarian Customer

HVGRAND just delivered 50 corona rings to Bulgarian customer.

July 16,2016

Maintenance of 800kV 0.5A AC Resonant System in India

Hvgrand’s engineer successfully did the commissioning of 800kV 0.5A AC Resonant System in Indian Siemens Test lab in March, 2016.

June 20,2016

New Contract with CG India

Hvgrand won the order from CG India to produce the 2000kV load capacitor for their lightning impulse test in July.

DEC 28,2022

Delivery of 50kV 0.5A AC voltage test system and PD detector to Thailand customer

HVgrand delivered 50kV 0.5A AC voltage test system and PD detector to Thailand customer in December, 2021.
AC voltage test system is used for AC voltage test of switchgears, insulators, transformers, bushings, etc.
The PD value of the system is less than 2PC.

JAN 15,2021

A new order of 72 pcs 100kV 2μF impulse capacitors from European customer

HVGRAND just got a new order of 72pcs 100kV 2μF impulse capacitors from European customer.

JAN 18,2021

A new order of 16 pcs 100kV 2μF impulse capacitors from French customer

HVGRAND just got a new order of 16 pcs 100kV 2μF impulse capacitors from French customer.

JAN 8,2021

A new order of 8 pcs 100kV 1μF impulse capacitors from European customer

HVGRAND just got a new order of 8 pcs 100kV 1μF impulse capacitors from European customer.

FEB 5,2022

900kV 90kJ impulse voltage generator for Indian customer

Our Indian customer installed and commissioned test system with our remote help in Jan,2022.

The system can be used to generate impulse waveform for simulating lightning strokes such as lightning impulse and steep impulse waveform.

Output waveform:

(1) Steep impulse voltage:

>1000kV/us,
Up to 500kV for insulator test
Suitable to test composite suspension and tension insulators
(2) Lightning impulse : up to 810kV without load

Waveform: 1.2±30%/50±20% μs
Efficiency: >90%

FEB 5,2022

Delivery of 100kV impulse resistors to Indonesian customer

HVGrand delivered 40pcs 100kV resistors for 400kV impulse generator to Indonesian transformer customer in 2022.

We can do custom made for our customers.
Impulse resistors rated from 100kV to 200kV;
Impulse resistors which can be bent from 100kV to 800kV;

FEB 5,2022

Delivery of 100kV impulse resistors to Mexican customer

HVGrand delivered 19pcs 100kV resistors for 300kV impulse generator to ProlecGE Mexico transformer factory in 2021.
We can do custom made for our customers.
Impulse resistors rated from 100kV to 200kV;
Impulse resistors which can be bent from 100kV to 800kV;

Jan 30,2024

HVGRAND just received a new order of 500kVA step-up transformer from European customer

HVGRAND just received a new order of 500kVA step-up transformer from European customer.

input 400V, output 5.8kV; ONAN;

Grounded screen between HV and LV windings

JAN 2,2024

Delivery of 100pcs Aluminum Screens to European Customer

HVGRAND just delivered 100pcs Aluminum screens to our European customer.

HVGRAND has provided hundreds of Aluminum corona rings and screens to this customer since 2018.

Feb 15,2019

Delivery of impulse resistors

wave shaping resistors, wave front resistor and wave tail resistor from 50kV to 200kV for impulse voltage generator

Aug 3, 2019

Delivery of 750kV chopping gap

HVGrand just installed and commissioned 750kV multiple chopping gap to Croatian customer in March 28,2019. The customer manufactures MV and HV power transformers.
This chopping gap is used together with the customer's old Haefely 800kV impulse voltage generator.
HVGrand can deliver chopping gap from 100kV to 2400kV.
You are welcome to contact us for more information.

July 18,2018

Delivery of Regulating Transformer

HVGrand just received one order of 2 pcs of 160kVA 3 phase regulating transformer from Croatian customer, famous HV test lab in Croatia.

Output voltage is adjustable steplessly, smoothly and continuously;

Continuous operation for 24 hours;

Rated input voltage:380V;

Rated output voltage:0~500V;

April 28,2018

Delivery of Loading Capacitor

HVGrand delivered 30kV and 60kV AC loading capacitor to Spain customer in March 2018.

JULY 28,2018

100kV Voltage Divider

HVGrand delivered100kV 1000pF voltage divider (coupling capacitor) to Croatian customer-Koncar in March 2018.

July 28,1028

Delivery of Trigger Control Unit

HVGrand delivered trigger control unit for 600kV impulse voltage generator to Croatian customer,famous national test lab in Croatia.

June 24,2023

2 sets 60kVA Regulating Transformer for Croatian customer

HVGRAND will deliver 1 set 160kVA and 2 sets 60kVA Regulating Transformer (voltage regulator) to Croatian customer.

June 24,2023

160kVA and 60kVA Regulating Transformer for Croatian customer

HVGRAND will deliver 1 set 160kVA and 2 sets 60kVA Regulating Transformer to Croatian customer.

Aug 23,2021

30kV 15kA Surge Generator for Italian customer

HVGrand will deliver 30kV 15kA combination wave generator (surge generator, 30kV 1.2/50μs & 15kA 8/20μs, 30kA 8/20μs, 1kA 10/350μs, ) to Italian customer (SPD manufacturer) .
The surge generator can output 30kV 1.2/50μs & 15kA 8/20μs, 30kA 8/20μs, 1kA 10/350μs. It can test Class II, Class III SPD, MOV.The surge generator can output 30kV 1.2/50μs & 15kA 8/20μs, 30kA 8/20μs, 1kA 10/350μs. It can test Class II, Class III SPD, MOV.
Automatic control and measurement system;

JUNE 26,2022

Delivery to big corona ring sets to Spain HV test lab

HVGRAND just delivered big corona ring sets to Spain's famous HV test lab.

The diameter of the corona rings reach about 115cm.

JULY 23,2022

Delivery of residual voltage divider to Thailand customer

HVGRAND just delivered 160kV residual voltage divider to Thailand customer.

The divider can measure the residual voltage upto 160kV @20kA 8/20μs.

Delivery of residual voltage divider to Thailand customer

JULY 2020

Delivery of 12pcs 100kV resistors

HVGrand delivered 12pcs 100kV resistors for 300kV impulse generator to ProlecGE Mexico transformer factory in 2020.

May,2020

Delivery of 130kV 2uF AC load capacitor

HVGrand delivered 1set 130kV 2uF AC load capacitor to Vietnam customer in 2020.

Sept 18,2019

Delivery of 100kV Impulse Voltage Generator

HVGrand delivered 100kV impulse voltage generator to Poland customer in 2019.

It can output switching impulse and lightning impulse for the testing of insulation platforms.

OCT 17,2022

New Order of Corona Rings

HVGRAND just received 50 pcs corona rings from European customer.

April 28,2020

HVgrand delivered voltage divider to French customer

HVgrand delivered 250kV AC & 350kV DC voltage divider to French customer.

OCT 1,2022

New Order of Corona Rings

HVGRAND just received 200 small corona rings to Spain customer, famous accredited HV test lab.

March 18,2021

A new order of 100kV 2μF impulse capacitors

HVGRAND just got a new order of 30 pcs 100kV 2μF impulse capacitors from Italian customer. The impulse capacitors are used to replace the old impulse capacitors of the impulse voltage test system.

March 18,2021

Delivery of 400kV AC voltage test system

HVgrand delivered 400kV 0.15A AC voltage test system to Thailand customer in March, 2021.

AC voltage test system is used for AC voltage test of switchgears, insulators, transformers, bushings, etc.

Jan,2020

Delivery of 100kV 0.1A AC voltage test system

HVgrand delivered 100kV 0.1A AC voltage test system to Pakistan customer in Jan,2021.

17 JULY, 2022

Delivery of 400kV impulse voltage divider

HVGRAND just delivered 400kV impulse voltage divider to our Indonesian customer who is one of the largest transformer manufacturers in Indonesia.

The voltage divider can measure LI upto 400kV.

NOV 6,2022

20kA Impulse Current Generator for SPD customer

HVGrand has delivered 20kA surge generator (impulse current generartor, 20kA 8/20μs) to our domestic customer (SPD manufacturer).The surge generator can output 20kA 8/20μs. It can test Class II SPD, MOV.

OCT 20,2022

20kV 10kA Surge Generator for SPD customer

HVGrand has delivered 20kV 10kA combination wave generator (surge generator, 20kV 1.2/50μs & 10kA 8/20μs) to our domestic customer (SPD manufacturer) .

The surge generator can output 20kV 1.2/50μs & 10kA 8/20μs.

It can test Class II, Class III SPD, MOV.

OCT 8,2022

20kV Impulse Voltage Generator

HVGrand has delivered 20kV impulse voltage generator to our domestic customer.

The impulse generator can output 20kV 1.2/50μs to test LV electronic products.

Sept. 18,2022

30kV 15kA Surge Generator for SPD customer

HVGrand has delivered 30kV 15kA combination wave generator (surge generator, 30kV 1.2/50μs & 15kA 8/20μs) to our domestic customer (SPD manufacturer) .

The surge generator can output 30kV 1.2/50μs & 15kA 8/20μs.

It can test Class II, Class III SPD, MOV.

Sept.12,2022

Delivery of 100kA impulse current generator for SPD customer

HVGRAND has installed and commissioned impulse current generator for our domestic customer. The generator can output 100kA 8/20 us and 25kA 10/350 us to test surge protectors, surge protective device (SPDs for short) and lightning protection components.

AUGUST 18,2022

Delivery of 50kV 100mA Dry Type AC Test Transformer

HVGRAND has delivered 50kV 100mA Dry Type AC Test Transformer to Mexican customer, one of the largest transformer manfacturers.

June 17,2021

900kV 90kJ impulse voltage test system to India

HVGrand just received an order from our Indian customer, one of the largest insulator manufacturers.

We will deliver 900kV 90kJ impulse voltage test system in July,2021.

The system can be used to generate impulse waveform for simulating lightning strokes such as lightning impulse and steep impulse waveform.

Output waveform:

(1) Steep impulse voltage:

>1000kV/ms, wave front timeT1= 500ns approx
Up to 600kV for insulator test
Suitable to test composite suspension and tension insulators
(2) Lightning impulse : up to 810kV without load

Waveform: 1.2±30%/50±20% μs
Efficiency: >90%

NOV 15,2022

Delivery of 200pcs small corona rings to Spain customer

HVGRAND just delivered 200pcs small corona rings/Aluminum screens/Aluminum tubes to Spain customer, famous accredited HV test lab.

July 14,2023

A New Order of 2400kV Impulse Voltage Divider

HVGRAND has just received an order of 2400kV LI & 1800kV SI impulse voltage divider from Spain customer, a famous worldwide HV test lab. We will deliver it in September.

April 14,2023

1600kV SI resistors for Spain customer

1600kV SI resistors

June 13,2024

We will Deliver 161pcs Impulse Resistors to American Customer

HVGRAND will deliver 160 pcs 100kV impulse resistors and 240 Ohm band resistor to American customer in June.

June 13,2024

A New Order of 800kV 20mA HV DC generator from Spain customer

HVGRAND just received a new order of 800kV 20mA HV DC generator from Spain customer, a famous accrediated test lab in Spain.

The generator can output maximum 800kV DC and 20mA.

It can be used to test HV converters, HV DC cables and instrument transformers.

July 12,2023

Copper Sphere for Italian Customer

HVGRAND will deliver 16pcs copper spheres (with trigger unit) to Italian customer.

July 12,2023

Band Impulse Resistors for Italian Customer

HVGRAND will offer 2 pcs impulse resistors (band resistors) (1.5meters long and 3 meters long) to Italian customer.

July 12,2023

100kV 1μF and 100kV 2μF Impulse Capacitors for Italian Customer

HVGRAND will ship 18pcs 100kV 2μF Impulse Capacitors and 10 pcs 100kV 1μF impulse capacitors to Italian customer, who is the famous manufacturer of impulse generator.

March, 2019

Delivery of 20kV 10kA combination wave generator in Brazil

HVgrand staff installed and commissioned the combination wave generator successfully in Brazil SPD customer in MARCD,2019. This product can output 20kV 10kA combination wave and 20kA 8/20μs, which can test Class II and Class III SPDs.

Jan 9,2018

400kV 20kJ impulse voltage test system to France

HVGrand installed and commissioned 400kV 20kJ impulse voltage test system
to our French customer (national test lab) in Paris in June,2017.

JAN 9,2018

Delivery of 20 pcs impulse capacitors to Turkish customer

HVGRAND just delivered 20 pieces impulse capacitors (100kV 1μF) to Turkish customer, who will build one set 2000kV impulse voltage generator.

August 08,2016

Delivery of 1200kV Impulse Voltage Generator to Reactor Customer

Hvgrand delivered 1200kV impulse voltage generator with 900kV chopping gap to HV reactor manufacturer in May, 2016. The pictures shows our engineer installed the system in the customer’s test lab.

August 04,2016

Delivery of 200kV AC Test System to Cable Customer

Hvgrand delivered 200kV 1A AC test system to Shandong Taikai cable manufacturer. The pictures shows the test cable and busbar in the customer’s test lab.

May 26,2016

Turkish Customer visited our factory

Turkish customer took a visit to our factory on May 25, 2016. We discussed about the function and operation of 400kV impulse voltage generator. The customer was satisfied with our performance.

July 11,2016

New Order of Reactor From Europe

Hvgrand has won a new order of 3 pcs 17kV compensation reactors from European customer in July. We will deliver it in September.

MAY 8,2024

A New Order of AC Test Transformer

HVGRAND just received an order of 100kV 0.1A AC Test System with metal tank type test transformer and automatic and manual control desk.

The test system is used to do dielectric withstand voltage test (power frequency AC voltage test) of fuse cutout, disconnecting switches.

June 11,2016

Successful Delivery of Combination Wave Generator in Spain

HVgrand staff installed and commissioned the combination wave generator successfully in Spain SPD customer in June,2016. This product can output 20kV 10kA combination wave and 20kA 8/20μs, which can test Class II and Class III SPDs.
With the residual voltage divider, it can measure the residual voltage of SPDs.
Combination wave generator is equipped with automatic control and measurement system with American Tektronix oscilloscope, Japan Mitsubishi PLC and American Pearson current monitor.

OCT 3,2023

HVGRAND has just received an order of 162 impulse resistors from American Customer

HVGRAND has just received an order of 162 impulse resistors from American Customer. 100kV 5kJ 10 Ohm, 32 Ohm,120Ohm, 200Ohm, 1 K Ohm, 6K Ohm. LI Wave front resistors and LI wave tail resistors, SI tail resistors, SI front resistors, charging resistors

JUNE 2,2023

120kW Water Processing Unit for Croatian customer

HVGRAND will deliver 120kW water processing unit to Croatian customer in June.

April 30,2024

Seashipment of Voltage Regulators to Europe

HVGRAND has just delivered 3 sets 60kVA and 5 sets 250kVA voltage regulators (regulating transformers) to our esteemed European customer, famous HV test lab by sea.

July 28,2018

New Order of Protective Resistors

HVGrand just received a new order of 2 pcs 200kV protective resistors for AC test transformer from ICMET,famous HV test lab in Romania.

July 28,2018

Delivery of Surge Generator

HVGrand will deliver 30kV 15kA combination wave generator (surge generator, 30kV 1.2/50μs & 15kA 8/20μs, 30kA 8/20μs, 1kA 10/350μs, ) to Raycap USA (SPD manufacturer) .
The surge generator can output 30kV 1.2/50μs & 15kA 8/20μs, 30kA 8/20μs, 1kA 10/350μs. It can test Class II, Class III SPD, MOV.
With AC/DC power source for operating duty test;
Coupling/Decoupling network;
Automatic control and measurement system;
The surge generator can output 30kV 1.2/50μs & 15kA 8/20μs, 30kA 8/20μs, 1kA 10/350μs. It can test Class II, Class III SPD, MOV.
With AC/DC power source for operating duty test;
Coupling/Decoupling network;
Automatic control and measurement system;

April 25,2024

Shipment of 450V Compensation Reactor to Europe

HVGRAND just shipped 4 sets 450V compensation reactor (inductances) to our European customer.

April 7,2024

A New Order of 800kV Impulse Voltage Divider

HVGRAND just received an order of 800kV impulse voltage divider from our Korean customer.

The divider can measure LI upto 800kV and SI upto 500kV.

April 24,2024

Shipment of 600kV 30kJ Impulse Voltage Generator To France

HVGRAND just shipped one 600kV 30kJ impulse voltage generator (marx generator) to our French customer.

The generator can output lightning impulse (LI) upto 540kV and switching impulse (SI) upto 400kV.

April 18,2024

Shipment of 500kVA Step-up Transformer to Europe

HVGRAND just shipped 3 sets of 500kVA step-up (isolation) transformer to our European customer.

input 400V, output 5.8kV; ONAN;

Grounded screen between HV and LV windings

April 17,2024

Airshipment of 22 pcs Impulse Resistors

HVGRAND just shipped 22 pcs impulse resistors （200kV LI wave front resistor, LI wave tail resistor, SI wave front resistor）by air to our European customer by air.

March 25,2024

Delivery of 30 Corona Rings to European Customer

HVGRAND will deliver 30pcs corona rings to European customer.

The largest diameter is 2.2 meters.

March 21,2024

Delivery of Voltage Regulator to European Customer

HVGRAND has just delivered two sets 60kVA and 2 sets 160kVA voltage regulators (regulating transformers) to our esteemed European customer, famous HV test lab.

FEB 18, 2024

New Order of Voltage Regulator for European Customer

HVGRAND just received an order of 5 sets 60kVA, 5 sets 250kVA and 2 sets 160kVA voltage regulator (regulating transformer) from our esteemed European customer, famous HV test lab.

April 14,2023

Delivery of impulse resistors to Spain HV test lab

HVGRAND just delivered 200kV impulse resistors (wave tail resistors for LI) and 1600kV SI resistors to Spain customer.

FEB 26,2024

A New Order of 22 pcs Impulse Resistors from European Customer

HVGRAND has just received a new order of 22 pcs impulse resistors （LI wave front resistor, LI wave tail resistor, SI wave front resistor）from our European customer.

June 13,2016

Successful Delivery of Regulating Transformer to Europe

²Hvgrand delivered 500kVA 3 phase induced regulating transformer to European customer in July. The transformer is featured with automatic control and measurement system.