Medium Voltage Switchgear

P/V-12(D)-W550 Removable AC Metal-enclosed Switchgear

P/V-12(D)-W550 Removable alternating-current metal-enclosed Switchgear is used for nominal system voltage 3~10kV, rated frequency 50Hz single-bus or single-bus segment system, as the acceptance and distribution of electrical energy, and the circuit control, protection, and monitoring functions of indoor distribution equipment. Each device is configured with two vacuum circuit breakers, which is suitable for the scenario where the space environment is small.

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Product Overview

Product Design Structure
A.Upper breaker compartment (normal use capacity 630A)

B.Lower breaker compartment (normal use capacity 630A)

C.Upper cable compartment (normal use capacity 630A)

D.Lower cable compartment (normal use capacity 630A)

E.Main busbar compartment (normal use capacity ≯3150A)

F.Intelligent control room

G.Pressure relief channel

Main Functional Unit Modules
The main functional unit module, located in the upper and lower circuit breaker compartments, is a detachable and removable combination module that can be easily and conveniently pulled out and removed from the switchgear when the switchgear is to be serviced extensively by opening the front door of the switchgear and unloading a few screws on the front side of the switchgear.

1. Base frame for mounting the major functional components

2. Circuit breakers, which are within the base frame rails and can still be moved independently of their position on a daily basis.

3. Flap drive mechanism, which follows the circuit breaker from test to working position.

4. Primary contact insulation box (front half)

5. Flapper plate, which moves up and down and opens when the circuit breaker is in the test position

6. Secondary control circuit dynamic and static connectors

Control And Operation
All displays of switchgear can be seen without opening the door, secondary control operations can only be carried out by opening the intelligent control room door, and primary emergency tripping and earthing switch operations are carried out with the door closed.

1.The secondary control measurement and control display window, if the operation needs to open the door

2.Switchgear main technical index parameter nameplate

3.Main circuit breaker operation inspection window, storm glass with anti-static shielding mesh

4.Operation button for emergency opening of primary circuit

5.Circuit breaker position (test → work) swing handle insertion port

6.Insertion port for earth switch closing and opening operation handle

7.Circuit breaker compartment door lock, need to open with key

Switchgear Technical Parameters

Name		Unit	Parametric
Rated Voltage		kV	12
Rated Frequency		Hz	50
Rated Insulation Level	Industrial frequency withstand voltage (1 minute)	kV	42
Rated Insulation Level	Lightning surge withstand voltage (peak)	kV	75
Main Busbar Rated Current		A	1250A/3150A
Rated Short-Time Withstand Current		kA	31.5
Rated Short-Time Endurance Time		S	4
Rated Peak Withstand Current		kA	80
Protection Class	Switchgear Housings		IP41
Protection Class	Between Switchgear Compartments		IP2X

SMain Component Options (Circuit Breakers)

P/V-12(D)-W550 portable a.c. metal-enclosed switchgear can be equipped with two kinds of circuit breakers: (1) iVB-12/T (2) VD4/P-12, phase spacing 150mm, pole spacing 205mm.

(1) iVB-12/T

(2) VD4/P-12, phase spacing 150mm, pole spacing 205mm.

Rated voltage	kV	12
Rated current	A	630，1250
Rated industrial frequency withstand voltage (1 minute)	kV	42
Rated lightning impulse withstand voltage (peak)	kV	75
Rated short-circuit breaking current	kA	25，31.5
Rated short-time withstand current (4 seconds)	kA	25，31.5
Electrical life rating		E2
Mechanical life		10000(M2)

Main Component Options (Earth Switch)

P/V-12(D)-W550 Removable a.c. metal-enclosed switchgear with optional earthing switch EK6-12/31.5-150

Rated voltage	kV	12
Rated short-time withstand current	kA	31.5
Rated short circuit duration	s	4
Rated short-circuit closing current	kA	80
Rated peak withstand current	kA	80
Rated industrial frequency withstand voltage (1 minute)	kV	42
Rated lightning impulse withstand voltage (peak)	kV	75
Mechanical life	次	2000

Main Component Option (Current Transformer)

P/V-12(D)-W550 Removable AC metal-enclosed switchgear with optional current transformer LDJ-10-140-1

Rated primary current（A)	Accuracy class combination	Rated Output(VA)	Short-time thermal current(kA/S）	Rated dynamic stability current(kA)
50,75,100,150,200	0.5/10P10	5	63	125
250,300,350,400	0.5/10P10	5	63	125
450,500,550,600	0.5/10P10	5	63	125
650,700,800,1000	0.5/10P10	5	63	125

Primary Main Circuit Scheme (Double Circuit Breaker Outlets)

Main wiring scheme	Component Name	Model Specification	Note
	Earth switch	EK6-12/31.5-150	Fixed formulation
	Cable connector	HY5W囗-17-45Z	Other models available
	Current Transformer	LDJ-10-140-1 0.5/10P10	Fixed formulation
	Vacuum break	iVB-12/T or VD4/P-12	Fixed formulation(630A)
	Main busbar	TYM	1250A~3150A
	Vacuum break	iVB-12/T or VD4/P-12	Fixed formulation(630A)
	Current transformer	LDJ-10-140-1 0.5/10P10	Fixed formulation
	Cable connector	HY5W囗-17-45Z	Other models available
	Earth switch	EK6-12/31.5-150	Fixed formulation
Use	Feed (a cable)
Overall dimensions	550W1650D2400H (Depth dimensions excluding front and rear doors)

Primary Main Circuit Programme (Breaker Feed And PT Measurement)

Main Wiring scheme	Component Name	Model Specification	Note

	Voltage transformer	JDZX10-10AR	Fixed formulation
	Fuse	XRNP囗-12 0.5A 50kA	Fixed formulation

	Main busbar	TYM	1250A~3150A
	Vacuum break	iVB-12/T or VD4/P-12	Fixed formulation (1250A)
	Current transformer	LDJ-10-140-1 0.5/10P10	Fixed formulation
	Cable connector	HY5W囗-17-45Z	Other models available

Use	Incoming telegram ＋ PT
Overall dimensions	550W1650D2400H (Depth dimensions excluding front and rear doors)

Typical main circuit combination scheme (≯1250A)

Use	PT	Feeder	Feeder	Feeder	Feeder	PT
Main Connectors Wires Group Combination Programmes Case
Use	Incoming telegram	Feeder	Incommunicado	Parent union	Feeder	Incoming telegram
Cabinet Width Dimensions	550	550	550	550	550	550

Typical main circuit combination scheme (≯3150A)

Use			Feeder				Feeder
Main Connectors Wires Group Combination Programmes Case
Use	Incoming telegram	PT		Feeder	Incommunicado	Parent union	Feeder	PT	Incoming telegram
Cabinet Width Dimensions	1000	800		550	1000	1000	550	800	1000