12kv Type Indoor High-Voltage Vacuum Load Break Switch-Fuse Composite Apparatus

• Type: Power
• Certification: ISO9001:2000
• Operation Voltage: High Voltage
• Application Range: Power Plants
• Brand: Joyelectric
• Rated Voltage: 12kv
• Model NO.: FZRN25-12D/T200-31.5
• Ambient Temperature: -25ºC~+40ºC
• The Height Above Sea Level: No More Than 1000m
• Earthquake Intensity: No More Than 8 Degree
• Transport Package: Plywood Case
• Trademark: JET
• Origin: China
• HS Code: 85352100

Product Description

Product Description

FZRN25-12D/T200-31.5 Type Indoor AC High-voltage Vacuum Load Break Switch-Fuse Composite Apparatus 

General description

FZN25-12D/T630-20 type indoor AC high-voltage vacuum load break switch is three phases AC 50Hz, rated voltage of 12kV. It can be used as protection and control of electric equipments for power transmission and distribution of factories , mines and enterprises. It can be used for CO load current, closed-loop current, no load transformer and cable charging current.

It can be equipped with earthing switch with capability of making short circuit current.

The operating mechanism can be operated by electrical or manual, which is easy to realize remote control. 

FZRN25-12D/T200-31.5 type indoor AC high-voltage vacuum load break switch-fuse composite apparatus is three phases AC 50Hz, rated voltage of 12kV. It can be used as load control and short circuit protection for power transmission and distribution of factories , mines and enterprises.

It can be equipped with earthing switch with capability of making short circuit current.

The operating mechanism can be operated by electrical or manual, which is easy to realize remote control.

Main application

FZN25-12D type indoor AC high-voltage vacuum load break switch and FZRN25-12D type indoor AC high-voltage vacuum load break switch-fuse composite apparatus are control and protection devices for three phases AC 50Hz, 12kV power distribution system. They are widely used for factories , mines, enterprises and buildings, etc. For protection of electrical equipment such as transformer, composite apparatus is more reliable than circuit breaker. It is particularly suitable for ring main unit, dual radiation power unit and box-type substation.

Applying ambient conditions

a. Ambient temperature: -25ºC~+40ºC (Transportation and storage at -30ºC are allowable)

b.The height above sea level≤1000m.

c.Relative humidity: the average humidity of a day should be no more than 95%; the average humidity of a month should be no more than 90%.

d. Earthquake intensity: no more than 8 degree.

e.It should be installed in the place without dust, fire, chemical erosion, explosion, vapor and salt spray.

f. No constant vibration

g. Pollution grade: II

Structural features

1. The product uses vacuum interrupter. Its performance is stable and reliable, with long electrical life, high breaking capability, strong making/breaking ability and easy to be operation and maintenance.

2. It combines switch body and operating mechanism, which integrates disconnector, load break switch and earthing switch. It is compact and with small volume.

3. Tandem arrangement of direct-acting isolating fracture and vacuum interrupter, high dynamic and thermal stable current;  it can be operated at one time due to unique linkage operating procedures.

4. Structure of cone fixed contact, insulation cover and shutter can separate busbar and load break switch unit completely.

5. Vacuum load break switch, earthing switch, shutter, switchgear door are in accordance with "5 prevention" mechanical interlock, which can prevent misoperation and is safe and reliable.

6. Charged energy by spring operating mechanism, can closing and opening by electrical and by manual.

7. Operating voltage of closing and opening can be DC and AC.

8. The normal type is operated by left and right side operating mechanism, but can with front operating mechanism as user's requirement.

9. Standard: GB3804, GB16926.

Main technical specification

Main technical specification of FZN25-12D type indoor AC high-voltage vacuum load break switch and FZRN25-12D type indoor AC high-voltage vacuum load break switch-fuse composite apparatus

S.N.	Name	Unit	Data
			FZN25-12D/T630-20	FZRN25-12D/T200-31.5
1	Rated voltage	kV	12
2	Rated frequency	Hz	50
3	Rated current	A	630	≤200
4	1min power frequency withstand voltage	kV	between phases and to ground 42; between gaps 48.
5	Lightning impulse withstand voltage (peak)	kV	between phases and to ground 75; between gaps 85
6	Rated short time withstand current (thermal stability current)	kA	20	-
7	Rated short circuit duration	s	4	-
8	Rated peak withstand current (Dynamic stability current)	kA	50	-
9	Rated active load breaking current	A	630	-
10	Rated closed loop breaking current	A	630	-
11	Rated cable charging breaking current	A	10	-
12	Rated breaking no load transformer capacity	KVA	1600
13	Rated short circuit breaking current	kA	-	31.5
14	Rated transfer current	A	-	2000
15	Fuse striker output energy	J	-	1+0.5
16	Rated short circuit making current	kA	50	(prospective peak value)
17	Rated short time withstand current of earthing switch (thermal stability current)	kA	20
18	Rated short circuit duration of earthing switch	s	2
19	Rated voltage of auxiliary circuit	V	AC/DC220, AC/DC110
20	Mechanical life	times	10000

Mechanical parameters of FZN25-12D type indoor AC high-voltage vacuum load break switch and FZRN25-12D type indoor AC high-voltage vacuum load break switch-fuse composite apparatus

S.N.	Name	Unit	Data
			FZN25-12D/T630-20		FZRN25-12D/T200-31.5
1	Air distance between electrified bodies and to ground	mm	≥125
2	Depth of conductive cylinder inserting into fixed contact seat	mm	≮18
3	Vacuum interrupter clearance	mm	6+10
4	Spring compression of vacuum interrupter's contact pressure	mm	2+10
5	Average closing speed of vacuum interrupter	m/s	0.6±0.2
6	Average opening speed of vacuum interrupter	m/s	0.9±0.2
7	Closing bounce time	ms	≤2
8	Non-synchronism of three-phase opening and closing	ms	≤3
9	Main circuit resistance	μΩ	≤150	≤300
10	Max. torque of manual operation	n.m	≤160
11	Opening time by fuse triggered	m/s	-	30-40
12	Opening time by tripper triggered	m/s	40-45

FAQ

Q: Could I have prices of your products?
A: Welcome. Please feel free to send us inquiry here. We will reply you within 24 hours
Q: Can l get a sample before the bulk order?
A: Yes, we welcome sample order to test and check quality. Mixed samples are acceptable.
Q: Can we print our logo/ company name on products?
A: Yes, of course, we accept OEM, then need you to provide brand authorization to us
Q:Do you accept product customization?
A: Yes, of course, please provide specific drawings or parameters, we will quote you after evaluation
Q: What is the lead time?
A: The lead time depends on the quantities ordered, generally within 7-20 days after receiving the payment.
Q: What is your Trade Terms?
A: We accept EXW, FOB, CIF, FCA, etc.
Q: What is your payment method?
A: We accept T/T, Western Union, Paypal, irrevocable L/C at sight, etc
Q: Do you inspect the finished products?
A: Yes, each step of production and finished products wil be came out inspection by Qc department before shipping. And we willprovide goods inspection reports for your reference before shipment
Q: How to solve the quality problems after sales?
A: Take photos of the quality problems and send to us for our checking and confirming, we will make a satisfied solution for you within 3 days.