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Transformer neutral grounding protective device

5000.0 USD
Min. Order: 1 Set/Sets
Trade Term: FOB
Payment Terms: L/C, T/T
Supply Ability: 100/month
Place of Origin: China

Company Profile

Location: Baoding, Hebei, China (Mainland)
Business Type: Manufacturer, Trading Company
Main Products: Neutral Grounding Resistor

Product Detail

Model No.: THT-TNP
Means of Transport: Ocean
Production Capacity: 100/month
Packing: wooden
Delivery Date: within 30 days after downpayment
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Product Description

1.Why us

a. We are professional supplier for neutral protection equipment of electric system.

b. Neutral grounding products are regarded as the No. 1 brand of the country.

c. Strong R&D team  provide you with the most professional solutions and technical service.

d. Exquisite production process provide you with high-quality production.

e. Strong production capacity ensure  timely delivery.

2. Application

  The grounding protection device is applicable to 110kV, 220kV or 330kV power transformer circuits in order to realize the conversion of earthing method. Provide over-voltage protection for neutral of 110 kV 220KV 330KV graded insulated transformers.

3. Specification :

a. Ambient temperature: -50℃-70℃

b. Altitude: less than 4500m.

c. Frequency : 50Hz or 60Hz

d. Installation: Indoor or outdoor

e.Stardard:GB311.1-1997,DL/T620-1997

f. Package: Fumigation-free woodiness packaging

4. Advantage

  a. Modular design, easy to choose type for different use.

b. The mounting brackets adopt seamless steel pipes,better stability and beautiful appearance.

 

c. Intelligent control units are equipped, electrical data can be uploaded via serial communications ports.

d. Use limit design bases on severe weather every 50 years.

 e. High-voltage test equipment and test procedure ensure 100% delivery qualification rate.

5. Regular Technical Particulars for reference

Transformer system Nominal Voltage

110kV

220kV

Insulation level

Light impulse withstand voltage

250 kV

325 kV

400kV

Power frequency withstand voltage

95 kV

140kV

200kV

Rod Gap

Type

THT-TNP-110

THT-TNP-220

Descriptions

Electrode bar with hemispheric ends

The adjustable range

50-160mm

250-360mm

Current Transformer(Used for protecting rod gap )

Type

THT-LJ80

Model

Epoxy-resin filled totally closed type

Rated primary current

100A 150A 300A 400A 500A 600A

Rated secondary current

1A/5A

Accurate combination and ratings

10P5/10P5 15VA/15VA

Disconnector

Type

GW13-72.5

GW13-126

Rated voltage

72.5kV

126Kv

Rated current

630A/1250A

Operating mechanism

CS17 type manual operating mechanism,CJ6 type motor-driven operating mechanism

Surge Arrester

Type

Y1.5W-60/144

Y1.5W-72/186

Y1.5W-144/320

Nominal discharging current

1.5kA

Rated voltage

60kV

72kV

144kV

Continuous operating voltage

48kV

58kV

116kV

Lighting impulse residual voltage

144kV

186kV

320kV

Counter/Monitor

JS8 type surge arrester counter/JCQ3 type surge arrester monitor

Note: the above table is relating to the general parameters for your consideration, please let us know if you have any special requirements.

6. Product structure and configuration scheme

a. Disconnecting Switch

b. Zinc-oxide Surge Arrestor

c. Rod Gap

d. Current Transformer

e. Mounting Brackets   

7.Ordering information

Service condition ,installation environment, system normal voltage , insulation standard

 

 

 

 

 

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